[CB21] Non-Private Chat: Police investigation legislation in the flat world by Vic Huang and Joy Ho
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When law enforcement and national security are concerned, the balance issue between public orders and privacy is coming to the table. The police investigation skills have been approved and more technical elements are added due to the revolution of communication ways. Nowadays messenger apps have become a popular communicating way between people. Criminal investigation starts to target the communication content in messenger apps. However, the legality of such technology investigation method is challenged by public. First , we would discuss about the technical part of messengers apps and Police Monitoring possibility. There are some messengers which is popular in different regions. In these apps, not only personal information are stored in the data collector side - service provider, but also our private chat messages with our family and friends. The messenger app companies say they use point-to-point encryption (end-to-end encryption, E2EE) to technically protect user privacy, but actually each what is E2EE? What is the difference between messenger apps E2EE? And how’s it possible that there are some monitor(spying) apps clarify that they could reach to the data under E2EE scope? It makes the Police monitoring possible because many spying apps are existed. In this part we will also discuss about the technical part of privacy protection and spying. The discussion would then point out “what and how the police could really get in real world” from the technical perspective. Secondly, we would start from Technology Investigation Act draft in Taiwan. On September 8, 2020, the Taiwan Ministry of Justice announced the draft Technology Investigation Act, which introduced different high-tech investigation approaches, including the “source telecommunications surveillance.” We will introduce the draft Technology Investigation Act and the source telecommunications surveillance ruled. Then we hope to learn from the German Criminal procedure law, Japanese Communication Surveillance Act(通信傍受法) , the Stored Communication Act in the U.S., and the Telecommunications and Other Legislation Amendment Bill in Australia.Here we will share some case studies related to above legislations. The issues related to the access of individual communication content would be raised: (1) If public interest is the reason to get individual communication, what is the line between privacy protection and public interest?What is the legal basis to get individual communication? (2) Could Government request or compel technology companies to provide my communication content? (3) How about the encrypted one? Through the discussion of 3 issues above, this presentation hope to find the balance between privacy protection and police investigation. The last but not the least, we would share a case study about the police in Taiwan use the personal information collected for COVID-19 measurements to investigate the case.
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It started with computer hacking and Japanese linguistics as a kid. Zach Mathis has been based in Kobe, Japan, and has performed both red team services as well as blue team incident response and defense consultation for major Japanese global Japanese corporations since 2006. He is the founder of Yamato Security, one of the largest and most popular hands-on security communities in Japan, and has been providing free training since 2012 to help improve the local security community. Since 2016, he has been teaching security for the SANS institute and holds numerous GIAC certifications. Currently, he is working with other Yamato security members to provide free and open-source security tools to help security analysts with their work.
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This session aims to share the contents of this report and clarify the challenges and future direction of operations in Japan, as well as national security and vulnerability handling issues in the US, in a panel discussion with representatives from various jurisdictions.
The panelists are involved in the practice of early warning partnership notified bodies in Japan, the authors of the above report in Europe and the contributors to the above report in the US.
In Japan, the issues of system awareness, incentives, increase in the number of outstanding cases in handling and so-called triage in handling vulnerabilities will be introduced.
From the United States, the Vulnerabilities Equities Process for National Security and the publication of a non-prosecution policy for vulnerability research will be introduced, as well as a historical background on the issue.
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Nowadays, most of the printers on the market do not have to be connected with USB or traditional cable. As long as you are using a LAN cable connected to the intranet, the computer can find and use the printer immediately. Most of them are based on protocols such as SLP and LLMNR. But is it really safe when vendors adopt those protocols? Furthermore, many printers do not use traditional Linux systems, but use RTOS(Real-Time Operating System) instead, how will this affect the attacker?
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While hackers have known the importance of sharing research to improve security for years, the importance of coordinated vulnerability disclosure is increasingly recognized by governments around the world. The principals of disclosure an protecting security researchers are common across borders, but different countries have some key differences. This panel will present a global perspective that may in turn inform key public policy and company behavior.
ENISA has published 'Coordinated Vulnerability Disclosure policies in the EU' in April 2022 . This report not only provides an objective introduction to the current state of coordinated vulnerability disclosure policies in the Member States of the European Union, but also introduces the operation of vulnerability disclosure in China, Japan and the USA. Based on these findings, the desirable and good practice elements of a coordinated vulnerability disclosure process are examined, followed by a discussion of the challenges and issues.
This session aims to share the contents of this report and clarify the challenges and future direction of operations in Japan, as well as national security and vulnerability handling issues in the US, in a panel discussion with representatives from various jurisdictions.
The panelists are involved in the practice of early warning partnership notified bodies in Japan, the authors of the above report in Europe and the contributors to the above report in the US.
In Japan, the issues of system awareness, incentives, increase in the number of outstanding cases in handling and so-called triage in handling vulnerabilities will be introduced.
From the United States, the Vulnerabilities Equities Process for National Security and the publication of a non-prosecution policy for vulnerability research will be introduced, as well as a historical background on the issue.
The aim is that the panel discussion will enable the audience to understand the international situation surrounding CVD, as well as future trends, in particular the important role of vulnerability in cybersecurity and the challenges faced by society around it.
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日本では、脆弱性対応における体制意識、インセンティブ、未処理案件の増加、いわゆるトリアージなどの課題が紹介される予定
米国からは、国家安全保障のための脆弱性情報の開示方針（Vulnerabilities Equities Process）、脆弱性研究の不起訴方針の公表などを紹介するとともに、この問題の歴史的背景を紹介する。
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[cb22] "The Present and Future of Coordinated Vulnerability Disclosure" Inter...
While hackers have known the importance of sharing research to improve security for years, the importance of coordinated vulnerability disclosure is increasingly recognized by governments around the world. The principals of disclosure an protecting security researchers are common across borders, but different countries have some key differences. This panel will present a global perspective that may in turn inform key public policy and company behavior.
ENISA has published 'Coordinated Vulnerability Disclosure policies in the EU' in April 2022 . This report not only provides an objective introduction to the current state of coordinated vulnerability disclosure policies in the Member States of the European Union, but also introduces the operation of vulnerability disclosure in China, Japan and the USA. Based on these findings, the desirable and good practice elements of a coordinated vulnerability disclosure process are examined, followed by a discussion of the challenges and issues.
This session aims to share the contents of this report and clarify the challenges and future direction of operations in Japan, as well as national security and vulnerability handling issues in the US, in a panel discussion with representatives from various jurisdictions.
The panelists are involved in the practice of early warning partnership notified bodies in Japan, the authors of the above report in Europe and the contributors to the above report in the US.
In Japan, the issues of system awareness, incentives, increase in the number of outstanding cases in handling and so-called triage in handling vulnerabilities will be introduced.
From the United States, the Vulnerabilities Equities Process for National Security and the publication of a non-prosecution policy for vulnerability research will be introduced, as well as a historical background on the issue.
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ハッカーたちの間では、セキュリティ向上のために研究を共有することの重要性が何年も前から知られていた。一方、協調して脆弱性を開示することの重要性も、世界中の政府によってますます認識されるようになってきた。情報開示とセキュリティ研究者の保護という原則は国境を越えて共通であるものの、国によって重要な違いがある。本パネルでは、重要な公共政策や企業の行動に影響を与える可能性のあるグローバルな視点を提示する。
ENISAは、2022年4月に「EUにおける脆弱性開示政策の調整」を発表した。本報告書では、EU加盟国における脆弱性開示の協調政策の現状を客観的に紹介するだけでなく、中国、日本、米国における脆弱性開示の運用を紹介している。それらを踏まえて、協調的な脆弱性開示プロセスに望ましい要素やベストプラクティスの要素を検討し、その後、課題や問題点について議論する予定。
本報告書の内容を共有し、日本における運用の課題と今後の方向性、米国における国家安全保障と脆弱性対応の課題を、各法域の代表者とのパネルディスカッションで明らかにすることを目的としています。
パネリストは、日本では早期警戒パートナーシップ通知機関の実務に携わる方々、欧州では上記報告書の執筆者、米国では上記報告書の寄稿者
日本では、脆弱性対応における体制意識、インセンティブ、未処理案件の増加、いわゆるトリアージなどの課題が紹介される予定
米国からは、国家安全保障のための脆弱性情報の開示方針（Vulnerabilities Equities Process）、脆弱性研究の不起訴方針の公表などを紹介するとともに、この問題の歴史的背景を紹介する。
パネルディスカッションを通じて、脆弱性開示政策を取り巻く国際情勢や今後の動向、特にサイバーセキュリティにおける脆弱性の重要な役割とそれを取り巻く社会が抱える課題について参加者に理解していただくことを目的とする。
[cb22] ”The Present and Future of Coordinated Vulnerability Disclosure” Inte...
While hackers have known the importance of sharing research to improve security for years, the importance of coordinated vulnerability disclosure is increasingly recognized by governments around the world. The principals of disclosure an protecting security researchers are common across borders, but different countries have some key differences. This panel will present a global perspective that may in turn inform key public policy and company behavior.
ENISA has published 'Coordinated Vulnerability Disclosure policies in the EU' in April 2022 . This report not only provides an objective introduction to the current state of coordinated vulnerability disclosure policies in the Member States of the European Union, but also introduces the operation of vulnerability disclosure in China, Japan and the USA. Based on these findings, the desirable and good practice elements of a coordinated vulnerability disclosure process are examined, followed by a discussion of the challenges and issues.
This session aims to share the contents of this report and clarify the challenges and future direction of operations in Japan, as well as national security and vulnerability handling issues in the US, in a panel discussion with representatives from various jurisdictions.
The panelists are involved in the practice of early warning partnership notified bodies in Japan, the authors of the above report in Europe and the contributors to the above report in the US.
In Japan, the issues of system awareness, incentives, increase in the number of outstanding cases in handling and so-called triage in handling vulnerabilities will be introduced.
From the United States, the Vulnerabilities Equities Process for National Security and the publication of a non-prosecution policy for vulnerability research will be introduced, as well as a historical background on the issue.
The aim is that the panel discussion will enable the audience to understand the international situation surrounding CVD, as well as future trends, in particular the important role of vulnerability in cybersecurity and the challenges faced by society around it.
[cb22] 「協調された脆弱性開示の現在と未来」国際的なパネルディスカッション（2）by Allan Friedman
ハッカーたちの間では、セキュリティ向上のために研究を共有することの重要性が何年も前から知られていた。一方、協調して脆弱性を開示することの重要性も、世界中の政府によってますます認識されるようになってきた。情報開示とセキュリティ研究者の保護という原則は国境を越えて共通であるものの、国によって重要な違いがある。本パネルでは、重要な公共政策や企業の行動に影響を与える可能性のあるグローバルな視点を提示する。
ENISAは、2022年4月に「EUにおける脆弱性開示政策の調整」を発表した。本報告書では、EU加盟国における脆弱性開示の協調政策の現状を客観的に紹介するだけでなく、中国、日本、米国における脆弱性開示の運用を紹介している。それらを踏まえて、協調的な脆弱性開示プロセスに望ましい要素やベストプラクティスの要素を検討し、その後、課題や問題点について議論する予定。
本報告書の内容を共有し、日本における運用の課題と今後の方向性、米国における国家安全保障と脆弱性対応の課題を、各法域の代表者とのパネルディスカッションで明らかにすることを目的としています。
パネリストは、日本では早期警戒パートナーシップ通知機関の実務に携わる方々、欧州では上記報告書の執筆者、米国では上記報告書の寄稿者
日本では、脆弱性対応における体制意識、インセンティブ、未処理案件の増加、いわゆるトリアージなどの課題が紹介される予定
米国からは、国家安全保障のための脆弱性情報の開示方針（Vulnerabilities Equities Process）、脆弱性研究の不起訴方針の公表などを紹介するとともに、この問題の歴史的背景を紹介する。
パネルディスカッションを通じて、脆弱性開示政策を取り巻く国際情勢や今後の動向、特にサイバーセキュリティにおける脆弱性の重要な役割とそれを取り巻く社会が抱える課題について参加者に理解していただくことを目的とする。
[cb22] "The Present and Future of Coordinated Vulnerability Disclosure" Inter...
While hackers have known the importance of sharing research to improve security for years, the importance of coordinated vulnerability disclosure is increasingly recognized by governments around the world. The principals of disclosure an protecting security researchers are common across borders, but different countries have some key differences. This panel will present a global perspective that may in turn inform key public policy and company behavior.
ENISA has published 'Coordinated Vulnerability Disclosure policies in the EU' in April 2022 . This report not only provides an objective introduction to the current state of coordinated vulnerability disclosure policies in the Member States of the European Union, but also introduces the operation of vulnerability disclosure in China, Japan and the USA. Based on these findings, the desirable and good practice elements of a coordinated vulnerability disclosure process are examined, followed by a discussion of the challenges and issues.
This session aims to share the contents of this report and clarify the challenges and future direction of operations in Japan, as well as national security and vulnerability handling issues in the US, in a panel discussion with representatives from various jurisdictions.
The panelists are involved in the practice of early warning partnership notified bodies in Japan, the authors of the above report in Europe and the contributors to the above report in the US.
In Japan, the issues of system awareness, incentives, increase in the number of outstanding cases in handling and so-called triage in handling vulnerabilities will be introduced.
From the United States, the Vulnerabilities Equities Process for National Security and the publication of a non-prosecution policy for vulnerability research will be introduced, as well as a historical background on the issue.
The aim is that the panel discussion will enable the audience to understand the international situation surrounding CVD, as well as future trends, in particular the important role of vulnerability in cybersecurity and the challenges faced by society around it.
[cb22] 「協調された脆弱性開示の現在と未来」国際的なパネルディスカッション （1）by 高橋 郁夫
ハッカーたちの間では、セキュリティ向上のために研究を共有することの重要性が何年も前から知られていた。一方、協調して脆弱性を開示することの重要性も、世界中の政府によってますます認識されるようになってきた。情報開示とセキュリティ研究者の保護という原則は国境を越えて共通であるものの、国によって重要な違いがある。本パネルでは、重要な公共政策や企業の行動に影響を与える可能性のあるグローバルな視点を提示する。
ENISAは、2022年4月に「EUにおける脆弱性開示政策の調整」を発表した。本報告書では、EU加盟国における脆弱性開示の協調政策の現状を客観的に紹介するだけでなく、中国、日本、米国における脆弱性開示の運用を紹介している。それらを踏まえて、協調的な脆弱性開示プロセスに望ましい要素やベストプラクティスの要素を検討し、その後、課題や問題点について議論する予定。
本報告書の内容を共有し、日本における運用の課題と今後の方向性、米国における国家安全保障と脆弱性対応の課題を、各法域の代表者とのパネルディスカッションで明らかにすることを目的としています。
パネリストは、日本では早期警戒パートナーシップ通知機関の実務に携わる方々、欧州では上記報告書の執筆者、米国では上記報告書の寄稿者
日本では、脆弱性対応における体制意識、インセンティブ、未処理案件の増加、いわゆるトリアージなどの課題が紹介される予定
米国からは、国家安全保障のための脆弱性情報の開示方針（Vulnerabilities Equities Process）、脆弱性研究の不起訴方針の公表などを紹介するとともに、この問題の歴史的背景を紹介する。
パネルディスカッションを通じて、脆弱性開示政策を取り巻く国際情勢や今後の動向、特にサイバーセキュリティにおける脆弱性の重要な役割とそれを取り巻く社会が抱える課題について参加者に理解していただくことを目的とする。
[cb22] Are Embedded Devices Ready for ROP Attacks? -ROP verification for low-...
Yuuma Taki is enrolled in the Hokkaido Information University Information Media Faculty of Information Media (4th year).
At university he is focusing on learning about security for lower-level components, such OS and CPU. In his third year of undergraduate school, he worked on trying to implement the OS security mechanism "KASLR", at Sechack365.
Currently, he is learning about ROP derivative technology and embedded equipment security.
[cb22] Wslinkのマルチレイヤーな仮想環境について by Vladislav Hrčka
2021年10月、Lazarusグループに関連する可能性が高いユニークなローダーであるWSLinkの最初の分析を公開。ほとんどのサンプルは難読化され、高度な仮想マシン（VM）難読化機能で保護されている。サンプルには明確なアーティファクトが含まれておらず、当初は難読化を公的に知られているVMと関連付けなかったが、後にそれをCodevirtualizerに接続することに成功。このVMは、ジャンクコードの挿入、仮想オペランドの暗号化、仮想オペコードの重複、難読化手法仮想命令のマージ、ネストされたVMなど、いくつかの追加の難読化技術を導入する。
本発表では、VMの内部を分析し、合理的な時間で難読化技術を「見抜く」ための半自動化されたアプローチについて説明する。また、難読化されたバイトコードと難読化されていないバイトコードを比較し、本手法の有効性を紹介する。われわれの手法は、仮想オペコードのセマンティクスを抽出する既知の難読化解除手法に基づいており、単純化規則によるシンボリック実行を使用。さらに、バイトコードチャンクとVMの内部構成を記号ではなく、具体的な値として扱い、既知の難読化手法で追加の難読化技術を自動的に処理できるようにする。
[cb22] Under the hood of Wslink’s multilayered virtual machine en by Vladisla...
In October 2021, we published the first analysis of Wslink – a unique loader likely linked to the Lazarus group. Most samples are packed and protected with an advanced virtual machine (VM) obfuscator; the samples contain no clear artifacts and we initially did not associate the obfuscation with a publicly known VM, but we later managed to connect it to CodeVirtualizer. This VM introduces several additional obfuscation techniques such as insertion of junk code, encoding of virtual operands, duplication of virtual opcodes, opaque predicates, merging of virtual instructions, and a nested VM.
Our presentation analyzes the internals of the VM and describes our semi automated approach to “see through” the obfuscation techniques in reasonable time. We demonstrate the approach on some bytecode from a protected sample and compare the results with a non-obfuscated sample, found subsequent to starting our analysis, confirming the method’s validity. Our solution is based on a known deobfuscation method that extracts the semantics of the virtual opcodes, using symbolic execution with simplifying rules. We further treat the bytecode chunks and some internal constructs of the VM as concrete values instead of as symbolic ones, enabling the known deobfuscation method to deal with the additional obfuscation techniques automatically.
[cb22] CloudDragon’s Credential Factory is Powering Up Its Espionage Activiti...
Kimsuky is a North Korean APT possibly controlled by North Korea's Reconnaissance General Bureau. Based on reports from the Korea Internet & Security Agency (KISA) and other vendors, TeamT5 identified that Kimsuky's most active group, CloudDragon, built a workflow functioning as a "Credential Factory," collecting and exploiting these massive credentials.
The credential factory powers CloudDragon to start its espionage campaigns. CloudDragon's campaigns have aligned with DPRK's interests, targeting the organizations and key figures playing a role in the DPRK relationship. Our database suggested that CloudDragon has possibly infiltrated targets in South Korea, Japan, and the United States. Victims include think tanks, NGOs, media agencies, educational institutes, and many individuals.
CloudDragon's "Credential Factory" can be divided into three small cycles, "Daily Cycle," "Campaign Cycle," and "Post-exploit Cycle." The"Daily Cycle" can collect massive credentials and use the stolen credentials to accelerate its APT life cycle.
In the "Campaign Cycle," CloudDragon develops many new malware. While we responded to CloudDragon's incidents, we found that the actor still relied on BabyShark malware. CloudDragon once used BabyShark to deploy a new browser extension malware targeting victims' browsers. Moreover, CloudDragon is also developing a shellcode-based malware, Dust.
In the "Post-exploit Cycle," the actor relied on hacking tools rather than malicious backdoors. We also identified that the actor used remote desktop software to prevent detection.
In this presentation, we will go through some of the most significant operations conducted by CloudDragon, and more importantly, we will provide possible scenarios of future invasions for defense and detection.
[cb22] From Parroting to Echoing: The Evolution of China’s Bots-Driven Info...
Social media is no doubt a critical battlefield for threat actors to launch InfoOps, especially in a critical moment such as wartime or the election season. We have seen Bot-Driven Information Operations (InfoOps, aka influence campaign) have attempted to spread disinformation, incite protests in the physical world, and doxxing against journalists.
China's Bots-Driven InfoOps, despite operating on a massive scale, are often considered to have low impact and very little organic engagement. In this talk, we will share our observations on these persistent Bots-Driven InfoOps and dissect their harmful disinformation campaigns circulated in cyberspace.
In the past, most bots-driven operations simply parroted narratives of the Chinese propaganda machine, mechanically disseminating the same propaganda and disinformation artifacts made by Chinese state media. However, recently, we saw the newly created bots turn to post artifacts in a livelier manner. They utilized various tactics, including reposting screenshots of forum posts and disguised as members of “Milk Tea Alliance,” to create a false appearance that such content is being echoed across cyberspace.
We particularly focus on an ongoing China's bots-driven InfoOps targeting Taiwan, which we dub "Operation ChinaRoot." Starting in mid-2021, the bots have been disseminating manipulated information about Taiwan's local politics and Covid-19 measures. Our further investigation has also identified the linkage between Operation ChinaRoot and other Chinese state-linked networks such as DRAGONBRIDGE and Spamouflage.
[cb22] Who is the Mal-Gopher? - Implementation and Evaluation of “gimpfuzzy”...
Malwares written in Go is increasing every year. Go's cross-platform nature makes it an opportune language for attackers who wish to target multiple platforms. On the other hand, the statically linked libraries make it difficult to distinguish between user functions and libraries, making it difficult for analysts to analyze. This situation has increased the demand for Go malware classification and exploration.
In this talk, we will demonstrate the feasibility of computing similarity and classification of Go malware using a newly proposed method called gimpfuzzy. We have implemented "gimpfuzzy", which incorporates Fuzzy Hashing into the existing gimphash method. In this talk, we will verify the discrimination rate of the classification using the proposed method and confirm the validity of the proposed method by discussing some examples from the classified results. We will also discuss issues in Go-malware classification.
[cb22] Mal-gopherとは？Go系マルウェアの分類のためのgimpfuzzy実装と評価 by 澤部 祐太, 甘粕 伸幸, 野村 和也
Goで書かれたマルウェアは年々増加している。Goはクロスプラットフォームの性質を持っており、複数のプラットフォームを標的にしたい攻撃者にとって好都合な言語である。その一方で、ライブラリが静的にリンクされていることからユーザ関数とライブラリの区別が難しく、アナリストにとって解析が困難である。そうした状況で、Goマルウェアの分類や探索の需要が高まっている。
本講演ではgimpfuzzyという新たな提案手法を用いてGoマルウェアに対し類似性の計算や分類が可能であることを検証する。われわれは既存手法であるgimphashにFuzzy Hashingを組み込んだ「gimpfuzzy」を新たに実装した。講演では提案手法を利用した分類の判別率を検証し、分類された結果の中からいくつかの事例を取り上げその妥当性について確認する。また、Goマルウェアの分類における課題についても検討を行う予定である。
[cb22] Tracking the Entire Iceberg - Long-term APT Malware C2 Protocol Emulat...
This document discusses the results of long-term scanning and analysis of Winnti 4.0 and ShadowPad malware command and control (C2) protocols. It finds that Winnti 4.0 C2s primarily use TLS, HTTPS, and HTTP, while ShadowPad variants primarily use TCP, HTTPS, and HTTP. Analysis of the protocols reveals encryption methods, packet structures, and server-side functionality. Over time, the number and distribution of active C2s changed, likely in response to research publications and incident response actions. The document advocates for anonymization techniques and merits and risks of future research publications.
[cb22] Fight Against Malware Development Life Cycle by Shusei Tomonaga and Yu...
We are swamped with new types of malware every day. The goal of malware analysis is not to reveal every single detail of the malware. It is more important to develop tools for efficiency or introduce automation to avoid repeating the same analysis process. Therefore, malware analysts usually actively develop tools and build analysis systems. On the other hand, it costs a lot for such tool developments and system maintenance. Incident trends change daily, and malware keeps evolving. However, it is not easy to keep up with new threats. Malware analysts spend a long time maintaining their analysis systems, and it results in reducing their time for necessary analysis of new types of malware.
To solve these problems, we incorporate DevOps practices into malware analysis to reduce the cost of system maintenance by using CI/CD and Serverless. This presentation shares our experience on how CI/CD, Serverless, and other cloud technologies can be used to streamline malware analysis. Specifically, the following case studies are discussed.
* Malware C2 Monitoring
* Malware Hunting using Cloud
* YARA CI/CD system
* Malware Analysis System on Cloud
* Memory Forensic on Cloud
Through the above case studies, we will share the benefits and tips of using the cloud and show how to build a similar system using Infrastructure as Code (IaC). The audience will learn how to improve the efficiency of malware analysis and build a malware analysis system using Cloud infrastructure.
[cb22] What I learned from the direct confrontation with the adversaries who ...
In November 2019, I started monitoring the Bitcoin operation by the adversaries who hid IP addresses of their C&C server in the blockchain. In June 2020, I started collaborating with Professor Christian Doerr of the Hasso Plattner Institute based on the idea of redirecting C&C server communication to a sinkhole server (called takeover), and we successfully achieved this in August. However, the adversaries quickly took evasive action, where they managed to implement an evasion mechanism in only two weeks and restarted their attack. Although we could not conduct our takeover, our monitoring system could worked well. The end of their attack was brought upon by the surge in Bitcoin prices. Due to the fees for the Bitcoin miners, a transaction had reduced the adversaries' profits, and we confirmed the last C&C update was in January 2021 and the abandonment of the attack infrastructure came in March. Since then, no similar attacks have been observed by my monitoring system.
Although this attack has already concluded and is unlikely to restart unless the value of Bitcoin declines, I would like to share the know-how I have learned through the direct confrontation with the adversaries. That is, at the time of the confrontation with them, this attack was highly novel, and the adversaries themselves did not fully understand the best solution for its' operation. They needed to evolve their tactics, techniques, and procedures (TTPs) while operating the system. We carefully analyzed their TTPs and tried to catch them off their guard. Even more troublesome was the need to understand as quickly as possible what they intended to do each time they were affected by the Bitcoin halving or making a simple operational error. This presentation is a culmination my insights learned from interactions with these adversaries and I am looking forward to sharing this information with everyone.
[cb22] ブロックチェーンにC&Cサーバー情報を隠ぺいした攻撃者との直接対峙により得られたもの by 谷口 剛
本研究では 2019 年 11 月から C&C サーバーの IP アドレスをブロックチェーンに隠ぺいした攻撃者のビットコイン運用監視を開始した。2020 年 6 月に C&C サーバ通信をシンクホールサーバへ直接誘導する (テイクオーバーと呼ぶ) アイデアによる国際協業を Hasso Plattner Institute の Christian Doerr 教授と開始し、8 月にテイクオーバーに成功した。攻撃者のテイクオーバー回避は早く、約 2 週間で回避メカニズムを実装し攻撃を再開した。テイクオーバーは回避されてしまったが、ビットコイン運用監視は機能し続けた。この攻撃の終息はビットコイン高騰がきっかけとなった。ビットコイン取引における採掘者への手数料が利益を圧迫する要因となり、2021 年 1 月に最後の C&C 情報の更新、3 月に攻撃インフラ放棄を確認した。その後、本研究の監視範囲において同種の攻撃は観察されていない。
この攻撃はすでに終息し、ビットコインの価値が下がらない限り再開される可能性は低いが、本講演では攻撃者との直接対峙により得られたノウハウを共有したい。つまり、攻撃者と対峙していた当時、この攻撃は新規性が高く、攻撃者自身も最適な運用方法を理解できていなかった。運用しながら攻撃手法を進化させる必要があり、われわれも攻撃手法を慎重に分析しながら隙を狙っていた。さらに厄介なのが、攻撃者がビットコイン半減期の影響を受けたり、単純な運用ミスをしたりして、そのたびに、われわれも攻撃者の意図を可能な限り早く理解しなければならなかったという点だ。この対峙により得られた知見は、本講演者による CODE BLUE 講演でも活かしており、本質的なノウハウとして共有する。
[cb22] SMARTIAN: Enhancing Smart Contract Fuzzing with Static and Dynamic Da...
Smartian is a tool that enhances smart contract fuzzing with static and dynamic data-flow analyses. It integrates static analysis to identify promising sequences of function calls for generating initial fuzzing seeds. It then uses dynamic analysis to mutate function arguments to realize expected data flows across functions. Smartian implements bug oracles for 13 classes of smart contract bugs. Evaluation shows Smartian outperforms other fuzzers and symbolic executors on benchmarks with known bugs, demonstrating the effectiveness of integrating static and dynamic analyses for smart contract fuzzing.
[cb22] Scaling the Security Researcher to Eliminate OSS Vulnerabilities Once ...
Imagine a world where a security researcher becomes aware of a security vulnerability, impacting thousands of Open Source Software (OSS) projects, and is enabled to both identify and fix them all at once. Now imagine a world where a vulnerability is introduced into your production code and a few moments later you receive an automated pull request to fix it. Hundreds of thousands of human hours are invested every year in finding common security vulnerabilities with relatively simple fixes. These vulnerabilities aren't sexy, cool, or new, we've known about them for years, but they're everywhere!
The scale of GitHub and tools like CodeQL (GitHub's code query language) enable one to scan for vulnerabilities across hundreds of thousands of OSS projects, but the challenge is how to scale the triaging, reporting, and fixing. Simply automating the creation of thousands of bug reports by itself isn't useful, and would be even more of a burden on volunteer maintainers of OSS projects. Ideally, the maintainers would be provided with not only information about the vulnerability, but also a fix in the form of an easily actionable pull request.
When facing a problem of this scale, what is the most efficient way to leverage researcher knowledge to fix the most vulnerabilities across OSS? This talk will cover a highly scalable solution - automated bulk pull request generation. We'll discuss the practical applications of this technique on real world OSS projects. We'll also cover technologies like CodeQL and OpenRewrite (a style-preserving refactoring tool created at Netflix and now developed by Moderne). Let's not just talk about vulnerabilities, let's actually fix them at scale.
This work is sponsored by the new Dan Kaminsky Fellowship; a fellowship created to celebrate Dan's memory and legacy by funding open-source work that makes the world a better (and more secure) place.
[cb22] Red light in the factory - From 0 to 100 OT adversary emulation by Vi...
Since 2010 Stuxnet caused substantial damage to the nuclear program of Iran, ICS security issues have been raised. Lots of researchers dig into the hacking skills and path and those known attacks in the history and more malwares and events happened. Enterprises need an efficient way to find vulnerabilities but they might not have the budget for ICS pentesters , which need strong background knowledge , and all the fields they have. To solve this problem, we try to make a rare OT targeting , open source adversary emulation tool as a plugin on MITRE open source tool - Caldera. Users can easily combine IT attacks with our OT adversaries and change steps of attacks or send manual commands in the process.
We summarize the experience of reviewing over 20 factories traffic and analyzing 19 MITRE defined ICS malwares, PIPEDREAM/Incontroller in 2022. We found the main trend of ICS malwares changes from single protocol targeting to modularized , multiple protocols supporting. The actions in malwares can be summarized as a 4 stages attacking flow, We will explain it with the real attacks from malwares. We use the above conclusions to build automatic adversary emulation tool.
Now the tool already supports 10 common protocols and over 23 techniques on the MITRE ICS matrix , which is able to reproduce over 80% of defined ICS malware actions in OT. We also follow the 4 stages conclusion to add some attacks havent been used by any malwares. We have tested it on real oil ,gas ,water, electric power factory devices , protocol simulations for SCADA developers and honeypot. We will have a demo in this presentation.
[cb22] Lets Dance in the Cache Destabilizing Hash Table on Microsoft IIS by O...
Hash Table, as the most fundamental Data Structure in Computer Science, is extensively applied in Software Architecture to store data in an associative manner. However, its architecture makes it prone to Collision Attacks. To deal with this problem, 25 years ago, Microsoft designed its own Dynamic Hashing algorithm and applied it everywhere in IIS, the Web Server from Microsoft, to serve various data from HTTP Stack. As Hash Table is everywhere, isn't the design from Microsoft worth scrutinizing?
We dive into IIS internals through months of Reverse-Engineering efforts to examine both the Hash Table implementation and the use of Hash Table algorithms. Several types of attacks are proposed and uncovered in our research, including (1) A specially designed Zero-Hash Flooding Attack against Microsoft's self-implemented algorithm. (2) A Cache Poisoning Attack based on the inconsistency between Hash-Keys. (3) An unusual Authentication Bypass based on a hash collision.
By understanding this talk, the audience won't be surprised why we can destabilize the Hash Table easily. The audience will also learn how we explore the IIS internals and will be surprised by our results. These results could not only make a default installed IIS Server hang with 100% CPU but also modify arbitrary HTTP responses through crafted HTTP request. Moreover, we'll demonstrate how we bypass the authentication requirement with a single, crafted password by colliding the identity cache!
[cb22] Keynote: Underwhelmed: Making Sense of the Overwhelming Challenge of C...
As the security industry has grown we've seen every aspect of our world become more complicated and more overwhelming. We're consistently promised solutions and technology to make our lives easier, to stop the attacker, to catch them quicker, to automate the pain away, but the reality falls flat. Frankly, it's underwhelming. Understanding where your program stands today, where you should spend time and resources, and how best to reduce risk to your organization are key aspects of any program. Join us to discuss and discover what some of the largest organizations in the world are doing to try to make sense of it all, and how they got there.
[cb22] Understanding the Chinese underground card shop ecosystem and becoming...
Personal Identifiable Information (PII) leaks have become more frequent in recent years, and losses from credit card fraud in 2021 have set records respectively in Taiwan and Japan. Where did this information get leaked and sold in the first place?
The term "Dark web" refers to websites inaccessible without the use of Tor protocol, and given added privacy and anonymity while using Tor, and marketplaces in it are proven to be very attractive to criminals.
An anonymous researcher will share experiences of dealing with vendors from card shops on marketplaces among dark web, focused on insights of shops selling Taiwanese and Japanese PIIs, and therefore, TTPs of hackers from these card shops.
We hope to inspire audiences to rethink how to reduce credit card frauds.
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[cb22] 「協調された脆弱性開示の現在と未来」国際的なパネルディスカッション（2）by Allan Friedman
ハッカーたちの間では、セキュリティ向上のために研究を共有することの重要性が何年も前から知られていた。一方、協調して脆弱性を開示することの重要性も、世界中の政府によってますます認識されるようになってきた。情報開示とセキュリティ研究者の保護という原則は国境を越えて共通であるものの、国によって重要な違いがある。本パネルでは、重要な公共政策や企業の行動に影響を与える可能性のあるグローバルな視点を提示する。
ENISAは、2022年4月に「EUにおける脆弱性開示政策の調整」を発表した。本報告書では、EU加盟国における脆弱性開示の協調政策の現状を客観的に紹介するだけでなく、中国、日本、米国における脆弱性開示の運用を紹介している。それらを踏まえて、協調的な脆弱性開示プロセスに望ましい要素やベストプラクティスの要素を検討し、その後、課題や問題点について議論する予定。
本報告書の内容を共有し、日本における運用の課題と今後の方向性、米国における国家安全保障と脆弱性対応の課題を、各法域の代表者とのパネルディスカッションで明らかにすることを目的としています。
パネリストは、日本では早期警戒パートナーシップ通知機関の実務に携わる方々、欧州では上記報告書の執筆者、米国では上記報告書の寄稿者
日本では、脆弱性対応における体制意識、インセンティブ、未処理案件の増加、いわゆるトリアージなどの課題が紹介される予定
米国からは、国家安全保障のための脆弱性情報の開示方針（Vulnerabilities Equities Process）、脆弱性研究の不起訴方針の公表などを紹介するとともに、この問題の歴史的背景を紹介する。
パネルディスカッションを通じて、脆弱性開示政策を取り巻く国際情勢や今後の動向、特にサイバーセキュリティにおける脆弱性の重要な役割とそれを取り巻く社会が抱える課題について参加者に理解していただくことを目的とする。
[cb22] "The Present and Future of Coordinated Vulnerability Disclosure" Inter...
While hackers have known the importance of sharing research to improve security for years, the importance of coordinated vulnerability disclosure is increasingly recognized by governments around the world. The principals of disclosure an protecting security researchers are common across borders, but different countries have some key differences. This panel will present a global perspective that may in turn inform key public policy and company behavior.
ENISA has published 'Coordinated Vulnerability Disclosure policies in the EU' in April 2022 . This report not only provides an objective introduction to the current state of coordinated vulnerability disclosure policies in the Member States of the European Union, but also introduces the operation of vulnerability disclosure in China, Japan and the USA. Based on these findings, the desirable and good practice elements of a coordinated vulnerability disclosure process are examined, followed by a discussion of the challenges and issues.
This session aims to share the contents of this report and clarify the challenges and future direction of operations in Japan, as well as national security and vulnerability handling issues in the US, in a panel discussion with representatives from various jurisdictions.
The panelists are involved in the practice of early warning partnership notified bodies in Japan, the authors of the above report in Europe and the contributors to the above report in the US.
In Japan, the issues of system awareness, incentives, increase in the number of outstanding cases in handling and so-called triage in handling vulnerabilities will be introduced.
From the United States, the Vulnerabilities Equities Process for National Security and the publication of a non-prosecution policy for vulnerability research will be introduced, as well as a historical background on the issue.
The aim is that the panel discussion will enable the audience to understand the international situation surrounding CVD, as well as future trends, in particular the important role of vulnerability in cybersecurity and the challenges faced by society around it.
[cb22] 「協調された脆弱性開示の現在と未来」国際的なパネルディスカッション （1）by 高橋 郁夫
ハッカーたちの間では、セキュリティ向上のために研究を共有することの重要性が何年も前から知られていた。一方、協調して脆弱性を開示することの重要性も、世界中の政府によってますます認識されるようになってきた。情報開示とセキュリティ研究者の保護という原則は国境を越えて共通であるものの、国によって重要な違いがある。本パネルでは、重要な公共政策や企業の行動に影響を与える可能性のあるグローバルな視点を提示する。
ENISAは、2022年4月に「EUにおける脆弱性開示政策の調整」を発表した。本報告書では、EU加盟国における脆弱性開示の協調政策の現状を客観的に紹介するだけでなく、中国、日本、米国における脆弱性開示の運用を紹介している。それらを踏まえて、協調的な脆弱性開示プロセスに望ましい要素やベストプラクティスの要素を検討し、その後、課題や問題点について議論する予定。
本報告書の内容を共有し、日本における運用の課題と今後の方向性、米国における国家安全保障と脆弱性対応の課題を、各法域の代表者とのパネルディスカッションで明らかにすることを目的としています。
パネリストは、日本では早期警戒パートナーシップ通知機関の実務に携わる方々、欧州では上記報告書の執筆者、米国では上記報告書の寄稿者
日本では、脆弱性対応における体制意識、インセンティブ、未処理案件の増加、いわゆるトリアージなどの課題が紹介される予定
米国からは、国家安全保障のための脆弱性情報の開示方針（Vulnerabilities Equities Process）、脆弱性研究の不起訴方針の公表などを紹介するとともに、この問題の歴史的背景を紹介する。
パネルディスカッションを通じて、脆弱性開示政策を取り巻く国際情勢や今後の動向、特にサイバーセキュリティにおける脆弱性の重要な役割とそれを取り巻く社会が抱える課題について参加者に理解していただくことを目的とする。
[cb22] Are Embedded Devices Ready for ROP Attacks? -ROP verification for low-...
Yuuma Taki is enrolled in the Hokkaido Information University Information Media Faculty of Information Media (4th year).
At university he is focusing on learning about security for lower-level components, such OS and CPU. In his third year of undergraduate school, he worked on trying to implement the OS security mechanism "KASLR", at Sechack365.
Currently, he is learning about ROP derivative technology and embedded equipment security.
[cb22] Wslinkのマルチレイヤーな仮想環境について by Vladislav Hrčka
2021年10月、Lazarusグループに関連する可能性が高いユニークなローダーであるWSLinkの最初の分析を公開。ほとんどのサンプルは難読化され、高度な仮想マシン（VM）難読化機能で保護されている。サンプルには明確なアーティファクトが含まれておらず、当初は難読化を公的に知られているVMと関連付けなかったが、後にそれをCodevirtualizerに接続することに成功。このVMは、ジャンクコードの挿入、仮想オペランドの暗号化、仮想オペコードの重複、難読化手法仮想命令のマージ、ネストされたVMなど、いくつかの追加の難読化技術を導入する。
本発表では、VMの内部を分析し、合理的な時間で難読化技術を「見抜く」ための半自動化されたアプローチについて説明する。また、難読化されたバイトコードと難読化されていないバイトコードを比較し、本手法の有効性を紹介する。われわれの手法は、仮想オペコードのセマンティクスを抽出する既知の難読化解除手法に基づいており、単純化規則によるシンボリック実行を使用。さらに、バイトコードチャンクとVMの内部構成を記号ではなく、具体的な値として扱い、既知の難読化手法で追加の難読化技術を自動的に処理できるようにする。
[cb22] Under the hood of Wslink’s multilayered virtual machine en by Vladisla...
In October 2021, we published the first analysis of Wslink – a unique loader likely linked to the Lazarus group. Most samples are packed and protected with an advanced virtual machine (VM) obfuscator; the samples contain no clear artifacts and we initially did not associate the obfuscation with a publicly known VM, but we later managed to connect it to CodeVirtualizer. This VM introduces several additional obfuscation techniques such as insertion of junk code, encoding of virtual operands, duplication of virtual opcodes, opaque predicates, merging of virtual instructions, and a nested VM.
Our presentation analyzes the internals of the VM and describes our semi automated approach to “see through” the obfuscation techniques in reasonable time. We demonstrate the approach on some bytecode from a protected sample and compare the results with a non-obfuscated sample, found subsequent to starting our analysis, confirming the method’s validity. Our solution is based on a known deobfuscation method that extracts the semantics of the virtual opcodes, using symbolic execution with simplifying rules. We further treat the bytecode chunks and some internal constructs of the VM as concrete values instead of as symbolic ones, enabling the known deobfuscation method to deal with the additional obfuscation techniques automatically.
[cb22] CloudDragon’s Credential Factory is Powering Up Its Espionage Activiti...
Kimsuky is a North Korean APT possibly controlled by North Korea's Reconnaissance General Bureau. Based on reports from the Korea Internet & Security Agency (KISA) and other vendors, TeamT5 identified that Kimsuky's most active group, CloudDragon, built a workflow functioning as a "Credential Factory," collecting and exploiting these massive credentials.
The credential factory powers CloudDragon to start its espionage campaigns. CloudDragon's campaigns have aligned with DPRK's interests, targeting the organizations and key figures playing a role in the DPRK relationship. Our database suggested that CloudDragon has possibly infiltrated targets in South Korea, Japan, and the United States. Victims include think tanks, NGOs, media agencies, educational institutes, and many individuals.
CloudDragon's "Credential Factory" can be divided into three small cycles, "Daily Cycle," "Campaign Cycle," and "Post-exploit Cycle." The"Daily Cycle" can collect massive credentials and use the stolen credentials to accelerate its APT life cycle.
In the "Campaign Cycle," CloudDragon develops many new malware. While we responded to CloudDragon's incidents, we found that the actor still relied on BabyShark malware. CloudDragon once used BabyShark to deploy a new browser extension malware targeting victims' browsers. Moreover, CloudDragon is also developing a shellcode-based malware, Dust.
In the "Post-exploit Cycle," the actor relied on hacking tools rather than malicious backdoors. We also identified that the actor used remote desktop software to prevent detection.
In this presentation, we will go through some of the most significant operations conducted by CloudDragon, and more importantly, we will provide possible scenarios of future invasions for defense and detection.
[cb22] From Parroting to Echoing: The Evolution of China’s Bots-Driven Info...
Social media is no doubt a critical battlefield for threat actors to launch InfoOps, especially in a critical moment such as wartime or the election season. We have seen Bot-Driven Information Operations (InfoOps, aka influence campaign) have attempted to spread disinformation, incite protests in the physical world, and doxxing against journalists.
China's Bots-Driven InfoOps, despite operating on a massive scale, are often considered to have low impact and very little organic engagement. In this talk, we will share our observations on these persistent Bots-Driven InfoOps and dissect their harmful disinformation campaigns circulated in cyberspace.
In the past, most bots-driven operations simply parroted narratives of the Chinese propaganda machine, mechanically disseminating the same propaganda and disinformation artifacts made by Chinese state media. However, recently, we saw the newly created bots turn to post artifacts in a livelier manner. They utilized various tactics, including reposting screenshots of forum posts and disguised as members of “Milk Tea Alliance,” to create a false appearance that such content is being echoed across cyberspace.
We particularly focus on an ongoing China's bots-driven InfoOps targeting Taiwan, which we dub "Operation ChinaRoot." Starting in mid-2021, the bots have been disseminating manipulated information about Taiwan's local politics and Covid-19 measures. Our further investigation has also identified the linkage between Operation ChinaRoot and other Chinese state-linked networks such as DRAGONBRIDGE and Spamouflage.
[cb22] Who is the Mal-Gopher? - Implementation and Evaluation of “gimpfuzzy”...
Malwares written in Go is increasing every year. Go's cross-platform nature makes it an opportune language for attackers who wish to target multiple platforms. On the other hand, the statically linked libraries make it difficult to distinguish between user functions and libraries, making it difficult for analysts to analyze. This situation has increased the demand for Go malware classification and exploration.
In this talk, we will demonstrate the feasibility of computing similarity and classification of Go malware using a newly proposed method called gimpfuzzy. We have implemented "gimpfuzzy", which incorporates Fuzzy Hashing into the existing gimphash method. In this talk, we will verify the discrimination rate of the classification using the proposed method and confirm the validity of the proposed method by discussing some examples from the classified results. We will also discuss issues in Go-malware classification.
[cb22] Mal-gopherとは？Go系マルウェアの分類のためのgimpfuzzy実装と評価 by 澤部 祐太, 甘粕 伸幸, 野村 和也
Goで書かれたマルウェアは年々増加している。Goはクロスプラットフォームの性質を持っており、複数のプラットフォームを標的にしたい攻撃者にとって好都合な言語である。その一方で、ライブラリが静的にリンクされていることからユーザ関数とライブラリの区別が難しく、アナリストにとって解析が困難である。そうした状況で、Goマルウェアの分類や探索の需要が高まっている。
本講演ではgimpfuzzyという新たな提案手法を用いてGoマルウェアに対し類似性の計算や分類が可能であることを検証する。われわれは既存手法であるgimphashにFuzzy Hashingを組み込んだ「gimpfuzzy」を新たに実装した。講演では提案手法を利用した分類の判別率を検証し、分類された結果の中からいくつかの事例を取り上げその妥当性について確認する。また、Goマルウェアの分類における課題についても検討を行う予定である。
[cb22] Tracking the Entire Iceberg - Long-term APT Malware C2 Protocol Emulat...
This document discusses the results of long-term scanning and analysis of Winnti 4.0 and ShadowPad malware command and control (C2) protocols. It finds that Winnti 4.0 C2s primarily use TLS, HTTPS, and HTTP, while ShadowPad variants primarily use TCP, HTTPS, and HTTP. Analysis of the protocols reveals encryption methods, packet structures, and server-side functionality. Over time, the number and distribution of active C2s changed, likely in response to research publications and incident response actions. The document advocates for anonymization techniques and merits and risks of future research publications.
[cb22] Fight Against Malware Development Life Cycle by Shusei Tomonaga and Yu...
We are swamped with new types of malware every day. The goal of malware analysis is not to reveal every single detail of the malware. It is more important to develop tools for efficiency or introduce automation to avoid repeating the same analysis process. Therefore, malware analysts usually actively develop tools and build analysis systems. On the other hand, it costs a lot for such tool developments and system maintenance. Incident trends change daily, and malware keeps evolving. However, it is not easy to keep up with new threats. Malware analysts spend a long time maintaining their analysis systems, and it results in reducing their time for necessary analysis of new types of malware.
To solve these problems, we incorporate DevOps practices into malware analysis to reduce the cost of system maintenance by using CI/CD and Serverless. This presentation shares our experience on how CI/CD, Serverless, and other cloud technologies can be used to streamline malware analysis. Specifically, the following case studies are discussed.
* Malware C2 Monitoring
* Malware Hunting using Cloud
* YARA CI/CD system
* Malware Analysis System on Cloud
* Memory Forensic on Cloud
Through the above case studies, we will share the benefits and tips of using the cloud and show how to build a similar system using Infrastructure as Code (IaC). The audience will learn how to improve the efficiency of malware analysis and build a malware analysis system using Cloud infrastructure.
[cb22] What I learned from the direct confrontation with the adversaries who ...
In November 2019, I started monitoring the Bitcoin operation by the adversaries who hid IP addresses of their C&C server in the blockchain. In June 2020, I started collaborating with Professor Christian Doerr of the Hasso Plattner Institute based on the idea of redirecting C&C server communication to a sinkhole server (called takeover), and we successfully achieved this in August. However, the adversaries quickly took evasive action, where they managed to implement an evasion mechanism in only two weeks and restarted their attack. Although we could not conduct our takeover, our monitoring system could worked well. The end of their attack was brought upon by the surge in Bitcoin prices. Due to the fees for the Bitcoin miners, a transaction had reduced the adversaries' profits, and we confirmed the last C&C update was in January 2021 and the abandonment of the attack infrastructure came in March. Since then, no similar attacks have been observed by my monitoring system.
Although this attack has already concluded and is unlikely to restart unless the value of Bitcoin declines, I would like to share the know-how I have learned through the direct confrontation with the adversaries. That is, at the time of the confrontation with them, this attack was highly novel, and the adversaries themselves did not fully understand the best solution for its' operation. They needed to evolve their tactics, techniques, and procedures (TTPs) while operating the system. We carefully analyzed their TTPs and tried to catch them off their guard. Even more troublesome was the need to understand as quickly as possible what they intended to do each time they were affected by the Bitcoin halving or making a simple operational error. This presentation is a culmination my insights learned from interactions with these adversaries and I am looking forward to sharing this information with everyone.
[cb22] ブロックチェーンにC&Cサーバー情報を隠ぺいした攻撃者との直接対峙により得られたもの by 谷口 剛
本研究では 2019 年 11 月から C&C サーバーの IP アドレスをブロックチェーンに隠ぺいした攻撃者のビットコイン運用監視を開始した。2020 年 6 月に C&C サーバ通信をシンクホールサーバへ直接誘導する (テイクオーバーと呼ぶ) アイデアによる国際協業を Hasso Plattner Institute の Christian Doerr 教授と開始し、8 月にテイクオーバーに成功した。攻撃者のテイクオーバー回避は早く、約 2 週間で回避メカニズムを実装し攻撃を再開した。テイクオーバーは回避されてしまったが、ビットコイン運用監視は機能し続けた。この攻撃の終息はビットコイン高騰がきっかけとなった。ビットコイン取引における採掘者への手数料が利益を圧迫する要因となり、2021 年 1 月に最後の C&C 情報の更新、3 月に攻撃インフラ放棄を確認した。その後、本研究の監視範囲において同種の攻撃は観察されていない。
この攻撃はすでに終息し、ビットコインの価値が下がらない限り再開される可能性は低いが、本講演では攻撃者との直接対峙により得られたノウハウを共有したい。つまり、攻撃者と対峙していた当時、この攻撃は新規性が高く、攻撃者自身も最適な運用方法を理解できていなかった。運用しながら攻撃手法を進化させる必要があり、われわれも攻撃手法を慎重に分析しながら隙を狙っていた。さらに厄介なのが、攻撃者がビットコイン半減期の影響を受けたり、単純な運用ミスをしたりして、そのたびに、われわれも攻撃者の意図を可能な限り早く理解しなければならなかったという点だ。この対峙により得られた知見は、本講演者による CODE BLUE 講演でも活かしており、本質的なノウハウとして共有する。
[cb22] SMARTIAN: Enhancing Smart Contract Fuzzing with Static and Dynamic Da...
Smartian is a tool that enhances smart contract fuzzing with static and dynamic data-flow analyses. It integrates static analysis to identify promising sequences of function calls for generating initial fuzzing seeds. It then uses dynamic analysis to mutate function arguments to realize expected data flows across functions. Smartian implements bug oracles for 13 classes of smart contract bugs. Evaluation shows Smartian outperforms other fuzzers and symbolic executors on benchmarks with known bugs, demonstrating the effectiveness of integrating static and dynamic analyses for smart contract fuzzing.
[cb22] Scaling the Security Researcher to Eliminate OSS Vulnerabilities Once ...
Imagine a world where a security researcher becomes aware of a security vulnerability, impacting thousands of Open Source Software (OSS) projects, and is enabled to both identify and fix them all at once. Now imagine a world where a vulnerability is introduced into your production code and a few moments later you receive an automated pull request to fix it. Hundreds of thousands of human hours are invested every year in finding common security vulnerabilities with relatively simple fixes. These vulnerabilities aren't sexy, cool, or new, we've known about them for years, but they're everywhere!
The scale of GitHub and tools like CodeQL (GitHub's code query language) enable one to scan for vulnerabilities across hundreds of thousands of OSS projects, but the challenge is how to scale the triaging, reporting, and fixing. Simply automating the creation of thousands of bug reports by itself isn't useful, and would be even more of a burden on volunteer maintainers of OSS projects. Ideally, the maintainers would be provided with not only information about the vulnerability, but also a fix in the form of an easily actionable pull request.
When facing a problem of this scale, what is the most efficient way to leverage researcher knowledge to fix the most vulnerabilities across OSS? This talk will cover a highly scalable solution - automated bulk pull request generation. We'll discuss the practical applications of this technique on real world OSS projects. We'll also cover technologies like CodeQL and OpenRewrite (a style-preserving refactoring tool created at Netflix and now developed by Moderne). Let's not just talk about vulnerabilities, let's actually fix them at scale.
This work is sponsored by the new Dan Kaminsky Fellowship; a fellowship created to celebrate Dan's memory and legacy by funding open-source work that makes the world a better (and more secure) place.
[cb22] Red light in the factory - From 0 to 100 OT adversary emulation by Vi...
Since 2010 Stuxnet caused substantial damage to the nuclear program of Iran, ICS security issues have been raised. Lots of researchers dig into the hacking skills and path and those known attacks in the history and more malwares and events happened. Enterprises need an efficient way to find vulnerabilities but they might not have the budget for ICS pentesters , which need strong background knowledge , and all the fields they have. To solve this problem, we try to make a rare OT targeting , open source adversary emulation tool as a plugin on MITRE open source tool - Caldera. Users can easily combine IT attacks with our OT adversaries and change steps of attacks or send manual commands in the process.
We summarize the experience of reviewing over 20 factories traffic and analyzing 19 MITRE defined ICS malwares, PIPEDREAM/Incontroller in 2022. We found the main trend of ICS malwares changes from single protocol targeting to modularized , multiple protocols supporting. The actions in malwares can be summarized as a 4 stages attacking flow, We will explain it with the real attacks from malwares. We use the above conclusions to build automatic adversary emulation tool.
Now the tool already supports 10 common protocols and over 23 techniques on the MITRE ICS matrix , which is able to reproduce over 80% of defined ICS malware actions in OT. We also follow the 4 stages conclusion to add some attacks havent been used by any malwares. We have tested it on real oil ,gas ,water, electric power factory devices , protocol simulations for SCADA developers and honeypot. We will have a demo in this presentation.
[cb22] Lets Dance in the Cache Destabilizing Hash Table on Microsoft IIS by O...
Hash Table, as the most fundamental Data Structure in Computer Science, is extensively applied in Software Architecture to store data in an associative manner. However, its architecture makes it prone to Collision Attacks. To deal with this problem, 25 years ago, Microsoft designed its own Dynamic Hashing algorithm and applied it everywhere in IIS, the Web Server from Microsoft, to serve various data from HTTP Stack. As Hash Table is everywhere, isn't the design from Microsoft worth scrutinizing?
We dive into IIS internals through months of Reverse-Engineering efforts to examine both the Hash Table implementation and the use of Hash Table algorithms. Several types of attacks are proposed and uncovered in our research, including (1) A specially designed Zero-Hash Flooding Attack against Microsoft's self-implemented algorithm. (2) A Cache Poisoning Attack based on the inconsistency between Hash-Keys. (3) An unusual Authentication Bypass based on a hash collision.
By understanding this talk, the audience won't be surprised why we can destabilize the Hash Table easily. The audience will also learn how we explore the IIS internals and will be surprised by our results. These results could not only make a default installed IIS Server hang with 100% CPU but also modify arbitrary HTTP responses through crafted HTTP request. Moreover, we'll demonstrate how we bypass the authentication requirement with a single, crafted password by colliding the identity cache!
[cb22] Keynote: Underwhelmed: Making Sense of the Overwhelming Challenge of C...
As the security industry has grown we've seen every aspect of our world become more complicated and more overwhelming. We're consistently promised solutions and technology to make our lives easier, to stop the attacker, to catch them quicker, to automate the pain away, but the reality falls flat. Frankly, it's underwhelming. Understanding where your program stands today, where you should spend time and resources, and how best to reduce risk to your organization are key aspects of any program. Join us to discuss and discover what some of the largest organizations in the world are doing to try to make sense of it all, and how they got there.
[cb22] Understanding the Chinese underground card shop ecosystem and becoming...
Personal Identifiable Information (PII) leaks have become more frequent in recent years, and losses from credit card fraud in 2021 have set records respectively in Taiwan and Japan. Where did this information get leaked and sold in the first place?
The term "Dark web" refers to websites inaccessible without the use of Tor protocol, and given added privacy and anonymity while using Tor, and marketplaces in it are proven to be very attractive to criminals.
An anonymous researcher will share experiences of dealing with vendors from card shops on marketplaces among dark web, focused on insights of shops selling Taiwanese and Japanese PIIs, and therefore, TTPs of hackers from these card shops.
We hope to inspire audiences to rethink how to reduce credit card frauds.
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[cb22] 「協調された脆弱性開示の現在と未来」国際的なパネルディスカッション（2）by Allan Friedman
[cb22] 「協調された脆弱性開示の現在と未来」国際的なパネルディスカッション（2）by Allan Friedman
[cb22] "The Present and Future of Coordinated Vulnerability Disclosure" Inter...
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[cb22] 「協調された脆弱性開示の現在と未来」国際的なパネルディスカッション （1）by 高橋 郁夫
[cb22] 「協調された脆弱性開示の現在と未来」国際的なパネルディスカッション （1）by 高橋 郁夫
[cb22] Are Embedded Devices Ready for ROP Attacks? -ROP verification for low-...
[cb22] Are Embedded Devices Ready for ROP Attacks? -ROP verification for low-...
[cb22] Under the hood of Wslink’s multilayered virtual machine en by Vladisla...
[cb22] Under the hood of Wslink’s multilayered virtual machine en by Vladisla...
[cb22] CloudDragon’s Credential Factory is Powering Up Its Espionage Activiti...
[cb22] CloudDragon’s Credential Factory is Powering Up Its Espionage Activiti...
[cb22] From Parroting to Echoing: The Evolution of China’s Bots-Driven Info...
[cb22] From Parroting to Echoing: The Evolution of China’s Bots-Driven Info...
[cb22] Who is the Mal-Gopher? - Implementation and Evaluation of “gimpfuzzy”...
[cb22] Who is the Mal-Gopher? - Implementation and Evaluation of “gimpfuzzy”...
[cb22] Mal-gopherとは？Go系マルウェアの分類のためのgimpfuzzy実装と評価 by 澤部 祐太, 甘粕 伸幸, 野村 和也
[cb22] Mal-gopherとは？Go系マルウェアの分類のためのgimpfuzzy実装と評価 by 澤部 祐太, 甘粕 伸幸, 野村 和也
[cb22] Tracking the Entire Iceberg - Long-term APT Malware C2 Protocol Emulat...
[cb22] Tracking the Entire Iceberg - Long-term APT Malware C2 Protocol Emulat...
[cb22] Fight Against Malware Development Life Cycle by Shusei Tomonaga and Yu...
[cb22] Fight Against Malware Development Life Cycle by Shusei Tomonaga and Yu...
[cb22] What I learned from the direct confrontation with the adversaries who ...
[cb22] What I learned from the direct confrontation with the adversaries who ...
[cb22] ブロックチェーンにC&Cサーバー情報を隠ぺいした攻撃者との直接対峙により得られたもの by 谷口 剛
[cb22] ブロックチェーンにC&Cサーバー情報を隠ぺいした攻撃者との直接対峙により得られたもの by 谷口 剛
[cb22] SMARTIAN: Enhancing Smart Contract Fuzzing with Static and Dynamic Da...
[cb22] SMARTIAN: Enhancing Smart Contract Fuzzing with Static and Dynamic Da...
[cb22] Scaling the Security Researcher to Eliminate OSS Vulnerabilities Once ...
[cb22] Scaling the Security Researcher to Eliminate OSS Vulnerabilities Once ...
[cb22] Red light in the factory - From 0 to 100 OT adversary emulation by Vi...
[cb22] Red light in the factory - From 0 to 100 OT adversary emulation by Vi...
[cb22] Lets Dance in the Cache Destabilizing Hash Table on Microsoft IIS by O...
[cb22] Lets Dance in the Cache Destabilizing Hash Table on Microsoft IIS by O...
[cb22] Keynote: Underwhelmed: Making Sense of the Overwhelming Challenge of C...
[cb22] Keynote: Underwhelmed: Making Sense of the Overwhelming Challenge of C...
[cb22] Understanding the Chinese underground card shop ecosystem and becoming...
[cb22] Understanding the Chinese underground card shop ecosystem and becoming...
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原版制作贝德福特大学毕业证（bedfordhire毕业证）硕士文凭原版一模一样
原版一模一样【微信：741003700 】【贝德福特大学毕业证（bedfordhire毕业证）硕士文凭】【微信：741003700 】学位证，留信认证（真实可查，永久存档）offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原海外各大学 Bachelor Diploma degree, Master Degree Diploma
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
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5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
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Mẫu PPT kế hoạch làm việc sáng tạo cho nửa cuối năm PowerPoint
Mẫu PPT kế hoạch làm việc sáng tạo cho nửa cuối năm PowerPoint
Mastering the Concepts Tested in the Databricks Certified Data Engineer Assoc...
• For a full set of 760+ questions. Go to
https://skillcertpro.com/product/databricks-certified-data-engineer-associate-exam-questions/
• SkillCertPro offers detailed explanations to each question which helps to understand the concepts better.
• It is recommended to score above 85% in SkillCertPro exams before attempting a real exam.
• SkillCertPro updates exam questions every 2 weeks.
• You will get life time access and life time free updates
• SkillCertPro assures 100% pass guarantee in first attempt.
BRIC_2024_2024-06-06-11:30-haunschild_archival_version.pdf
These are the slides of my presentation at BRIC 2024 about global science overlay maps using OpenAlex.
Tom tresser burning issue.pptx My Burning issue
Addressing the status of black home ownership in America. and what actions are taken to impact these trends.
Pro-competitive Industrial Policy – LANE – June 2024 OECD discussion
Pro-competitive Industrial Policy – LANE – June 2024 OECD discussionOECD Directorate for Financial and Enterprise Affairs
This presentation by Nathaniel Lane, Associate Professor in Economics at Oxford University, was made during the discussion “Pro-competitive Industrial Policy” held at the 143rd meeting of the OECD Competition Committee on 12 June 2024. More papers and presentations on the topic can be found at oe.cd/pcip.
This presentation was uploaded with the author’s consent.
Artificial Intelligence, Data and Competition – ČORBA – June 2024 OECD discus...
Artificial Intelligence, Data and Competition – ČORBA – June 2024 OECD discus...OECD Directorate for Financial and Enterprise Affairs
This presentation by Juraj Čorba, Chair of OECD Working Party on Artificial Intelligence Governance (AIGO), was made during the discussion “Artificial Intelligence, Data and Competition” held at the 143rd meeting of the OECD Competition Committee on 12 June 2024. More papers and presentations on the topic can be found at oe.cd/aicomp.
This presentation was uploaded with the author’s consent.
Suzanne Lagerweij - Influence Without Power - Why Empathy is Your Best Friend...
This is a workshop about communication and collaboration. We will experience how we can analyze the reasons for resistance to change (exercise 1) and practice how to improve our conversation style and be more in control and effective in the way we communicate (exercise 2).
This session will use Dave Gray’s Empathy Mapping, Argyris’ Ladder of Inference and The Four Rs from Agile Conversations (Squirrel and Fredrick).
Abstract:
Let’s talk about powerful conversations! We all know how to lead a constructive conversation, right? Then why is it so difficult to have those conversations with people at work, especially those in powerful positions that show resistance to change?
Learning to control and direct conversations takes understanding and practice.
We can combine our innate empathy with our analytical skills to gain a deeper understanding of complex situations at work. Join this session to learn how to prepare for difficult conversations and how to improve our agile conversations in order to be more influential without power. We will use Dave Gray’s Empathy Mapping, Argyris’ Ladder of Inference and The Four Rs from Agile Conversations (Squirrel and Fredrick).
In the session you will experience how preparing and reflecting on your conversation can help you be more influential at work. You will learn how to communicate more effectively with the people needed to achieve positive change. You will leave with a self-revised version of a difficult conversation and a practical model to use when you get back to work.
Come learn more on how to become a real influencer!
Competition and Regulation in Professions and Occupations – ROBSON – June 202...
Competition and Regulation in Professions and Occupations – ROBSON – June 202...OECD Directorate for Financial and Enterprise Affairs
This presentation by Professor Alex Robson, Deputy Chair of Australia’s Productivity Commission, was made during the discussion “Competition and Regulation in Professions and Occupations” held at the 77th meeting of the OECD Working Party No. 2 on Competition and Regulation on 10 June 2024. More papers and presentations on the topic can be found at oe.cd/crps.
This presentation was uploaded with the author’s consent.Artificial Intelligence, Data and Competition – LIM – June 2024 OECD discussion
Artificial Intelligence, Data and Competition – LIM – June 2024 OECD discussionOECD Directorate for Financial and Enterprise Affairs
This presentation by Yong Lim, Professor of Economic Law at Seoul National University School of Law, was made during the discussion “Artificial Intelligence, Data and Competition” held at the 143rd meeting of the OECD Competition Committee on 12 June 2024. More papers and presentations on the topic can be found at oe.cd/aicomp.
This presentation was uploaded with the author’s consent.
Artificial Intelligence, Data and Competition – OECD – June 2024 OECD discussion
Artificial Intelligence, Data and Competition – OECD – June 2024 OECD discussionOECD Directorate for Financial and Enterprise Affairs
This presentation by OECD, OECD Secretariat, was made during the discussion “Artificial Intelligence, Data and Competition” held at the 143rd meeting of the OECD Competition Committee on 12 June 2024. More papers and presentations on the topic can be found at oe.cd/aicomp.
This presentation was uploaded with the author’s consent.
Collapsing Narratives: Exploring Non-Linearity • a micro report by Rosie Wells
Insight: In a landscape where traditional narrative structures are giving way to fragmented and non-linear forms of storytelling, there lies immense potential for creativity and exploration.
'Collapsing Narratives: Exploring Non-Linearity' is a micro report from Rosie Wells.
Rosie Wells is an Arts & Cultural Strategist uniquely positioned at the intersection of grassroots and mainstream storytelling.
Their work is focused on developing meaningful and lasting connections that can drive social change.
Please download this presentation to enjoy the hyperlinks!
Why Psychological Safety Matters for Software Teams - ACE 2024 - Ben Linders.pdf
Psychological safety in teams is important; team members must feel safe and able to communicate and collaborate effectively to deliver value. It’s also necessary to build long-lasting teams since things will happen and relationships will be strained.
But, how safe is a team? How can we determine if there are any factors that make the team unsafe or have an impact on the team’s culture?
In this mini-workshop, we’ll play games for psychological safety and team culture utilizing a deck of coaching cards, The Psychological Safety Cards. We will learn how to use gamification to gain a better understanding of what’s going on in teams. Individuals share what they have learned from working in teams, what has impacted the team’s safety and culture, and what has led to positive change.
Different game formats will be played in groups in parallel. Examples are an ice-breaker to get people talking about psychological safety, a constellation where people take positions about aspects of psychological safety in their team or organization, and collaborative card games where people work together to create an environment that fosters psychological safety.
ASONAM2023_presection_slide_track-recommendation.pdf
Presented at the 2023 IEEE/ACM International Conference on
Advances in Social Networks Analysis and Mining.
Carrer goals.pptx and their importance in real life
Career goals serve as a roadmap for individuals, guiding them toward achieving long-term professional aspirations and personal fulfillment. Establishing clear career goals enables professionals to focus their efforts on developing specific skills, gaining relevant experience, and making strategic decisions that align with their desired career trajectory. By setting both short-term and long-term objectives, individuals can systematically track their progress, make necessary adjustments, and stay motivated. Short-term goals often include acquiring new qualifications, mastering particular competencies, or securing a specific role, while long-term goals might encompass reaching executive positions, becoming industry experts, or launching entrepreneurial ventures.
Moreover, having well-defined career goals fosters a sense of purpose and direction, enhancing job satisfaction and overall productivity. It encourages continuous learning and adaptation, as professionals remain attuned to industry trends and evolving job market demands. Career goals also facilitate better time management and resource allocation, as individuals prioritize tasks and opportunities that advance their professional growth. In addition, articulating career goals can aid in networking and mentorship, as it allows individuals to communicate their aspirations clearly to potential mentors, colleagues, and employers, thereby opening doors to valuable guidance and support. Ultimately, career goals are integral to personal and professional development, driving individuals toward sustained success and fulfillment in their chosen fields.
XP 2024 presentation: A New Look to Leadership
Presentation slides from XP2024 conference, Bolzano IT. The slides describe a new view to leadership and combines it with anthro-complexity (aka cynefin).
2024-05-30_meetup_devops_aix-marseille.pdf
Slides de notre meetup DevOps AixMarseille du 30 mai 2024 chez SmarTribune
Sujets: platform engineering / terragrunt / test containers
Artificial Intelligence, Data and Competition – SCHREPEL – June 2024 OECD dis...
Artificial Intelligence, Data and Competition – SCHREPEL – June 2024 OECD dis...OECD Directorate for Financial and Enterprise Affairs
This presentation by Thibault Schrepel, Associate Professor of Law at Vrije Universiteit Amsterdam University, was made during the discussion “Artificial Intelligence, Data and Competition” held at the 143rd meeting of the OECD Competition Committee on 12 June 2024. More papers and presentations on the topic can be found at oe.cd/aicomp.
This presentation was uploaded with the author’s consent.
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Suzanne Lagerweij - Influence Without Power - Why Empathy is Your Best Friend...
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[CB21] Non-Private Chat: Police investigation legislation in the flat world by Vic Huang and Joy Ho
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