Ransomware is a type of malicious software that blocks access to data or threatens to publish it until a ransom is paid. Simple ransomware may lock the system in a way which is not difficult for a knowledgeable person to reverse. More advanced malware uses a technique called cryptoviral extortion, in which it encrypts the victim's files, making them inaccessible, and demands a ransom payment to decrypt them and ransomware attacks 2017
Ransomware- What you need to know to Safeguard your DataInderjeet Singh
Ransomware - a malicious software used by hackers to block access to a computer system until a ransom is paid. Attackers contact the user with ransom demands. Most attackers request payment in Bitcoin (the crypto-currency). Even if you pay the ransom, the attackers may not deliver the key to unencrypt files.
As ransomware attacks continue to grow in number and sophistication, individual PC users and organizations should reassess their current security strategy. There is a common misconception that adding layers of automated defence technologies will reduce the risk of falling victim to ransomware attacks. While endpoint security products and secure email gateways can offer some level of protection, sooner or later a phishing email, which is the most widely-used attack vector, will penetrate defences and user will be faced with determining whether or not an email is legitimate or part of an attack.
Understand what Ethical Hacking is, what are it's phases, and how it is different from Hacking.
Followed by screenshots of two common ethical hacking attacks.
Secure your system from Ransomware virus by acquiring knowledge about the same. Our experts at doiss aims to protect your system from this harmful virus.
This is a power-point presentation on "Trojan Horse" which is a hacking technique mostly used by hackers.
Trojan appears to be useful program but contain hidden code's such as virus.
This is a presentation I gave to senior high school students. The 1st part is an overview the 2nd part is more detailed on the ways to perform the Ethical Hacking.
Need my help? Contact Keith Brooks via one of the following ways:
Blog http://blog.vanessabrooks.com
Twitter http://twitter.com/lotusevangelist
http://about.me/keithbrooks
Ransomware is a type of malicious software that blocks access to data or threatens to publish it until a ransom is paid. Simple ransomware may lock the system in a way which is not difficult for a knowledgeable person to reverse. More advanced malware uses a technique called cryptoviral extortion, in which it encrypts the victim's files, making them inaccessible, and demands a ransom payment to decrypt them and ransomware attacks 2017
Ransomware- What you need to know to Safeguard your DataInderjeet Singh
Ransomware - a malicious software used by hackers to block access to a computer system until a ransom is paid. Attackers contact the user with ransom demands. Most attackers request payment in Bitcoin (the crypto-currency). Even if you pay the ransom, the attackers may not deliver the key to unencrypt files.
As ransomware attacks continue to grow in number and sophistication, individual PC users and organizations should reassess their current security strategy. There is a common misconception that adding layers of automated defence technologies will reduce the risk of falling victim to ransomware attacks. While endpoint security products and secure email gateways can offer some level of protection, sooner or later a phishing email, which is the most widely-used attack vector, will penetrate defences and user will be faced with determining whether or not an email is legitimate or part of an attack.
Understand what Ethical Hacking is, what are it's phases, and how it is different from Hacking.
Followed by screenshots of two common ethical hacking attacks.
Secure your system from Ransomware virus by acquiring knowledge about the same. Our experts at doiss aims to protect your system from this harmful virus.
This is a power-point presentation on "Trojan Horse" which is a hacking technique mostly used by hackers.
Trojan appears to be useful program but contain hidden code's such as virus.
This is a presentation I gave to senior high school students. The 1st part is an overview the 2nd part is more detailed on the ways to perform the Ethical Hacking.
Need my help? Contact Keith Brooks via one of the following ways:
Blog http://blog.vanessabrooks.com
Twitter http://twitter.com/lotusevangelist
http://about.me/keithbrooks
Ethical hacking also known as penetration testing or white-hat hacking, involves the same tools, tricks, and techniques that hackers use, but with one major difference that Ethical hacking is legal. Ethical hacking is performed with the target’s permission. The intent of ethical hacking is to discover vulnerabilities from a hacker’s viewpoint so systems can be better secured. Its part of an overall information risk management program that allows for ongoing security improvements. Ethical hacking can also ensure that vendors’ claims about the security of their products are legitimate.
Security is the degree of resistance to, or protection from, harm. It applies to any vulnerable and valuable asset, such as a person, dwelling, community, nation, or organization.
As noted by the Institute for Security and Open Methodologies (ISECOM) in the OSSTMM 3, security provides "a form of protection where a separation is created between the assets and the threat." These separations are generically called "controls," and sometimes include changes to the asset or the threat
APNIC Foundation, presented by Ellisha Heppner at the PNG DNS Forum 2024APNIC
Ellisha Heppner, Grant Management Lead, presented an update on APNIC Foundation to the PNG DNS Forum held from 6 to 10 May, 2024 in Port Moresby, Papua New Guinea.
This 7-second Brain Wave Ritual Attracts Money To You.!nirahealhty
Discover the power of a simple 7-second brain wave ritual that can attract wealth and abundance into your life. By tapping into specific brain frequencies, this technique helps you manifest financial success effortlessly. Ready to transform your financial future? Try this powerful ritual and start attracting money today!
Multi-cluster Kubernetes Networking- Patterns, Projects and GuidelinesSanjeev Rampal
Talk presented at Kubernetes Community Day, New York, May 2024.
Technical summary of Multi-Cluster Kubernetes Networking architectures with focus on 4 key topics.
1) Key patterns for Multi-cluster architectures
2) Architectural comparison of several OSS/ CNCF projects to address these patterns
3) Evolution trends for the APIs of these projects
4) Some design recommendations & guidelines for adopting/ deploying these solutions.
1.Wireless Communication System_Wireless communication is a broad term that i...JeyaPerumal1
Wireless communication involves the transmission of information over a distance without the help of wires, cables or any other forms of electrical conductors.
Wireless communication is a broad term that incorporates all procedures and forms of connecting and communicating between two or more devices using a wireless signal through wireless communication technologies and devices.
Features of Wireless Communication
The evolution of wireless technology has brought many advancements with its effective features.
The transmitted distance can be anywhere between a few meters (for example, a television's remote control) and thousands of kilometers (for example, radio communication).
Wireless communication can be used for cellular telephony, wireless access to the internet, wireless home networking, and so on.
# Internet Security: Safeguarding Your Digital World
In the contemporary digital age, the internet is a cornerstone of our daily lives. It connects us to vast amounts of information, provides platforms for communication, enables commerce, and offers endless entertainment. However, with these conveniences come significant security challenges. Internet security is essential to protect our digital identities, sensitive data, and overall online experience. This comprehensive guide explores the multifaceted world of internet security, providing insights into its importance, common threats, and effective strategies to safeguard your digital world.
## Understanding Internet Security
Internet security encompasses the measures and protocols used to protect information, devices, and networks from unauthorized access, attacks, and damage. It involves a wide range of practices designed to safeguard data confidentiality, integrity, and availability. Effective internet security is crucial for individuals, businesses, and governments alike, as cyber threats continue to evolve in complexity and scale.
### Key Components of Internet Security
1. **Confidentiality**: Ensuring that information is accessible only to those authorized to access it.
2. **Integrity**: Protecting information from being altered or tampered with by unauthorized parties.
3. **Availability**: Ensuring that authorized users have reliable access to information and resources when needed.
## Common Internet Security Threats
Cyber threats are numerous and constantly evolving. Understanding these threats is the first step in protecting against them. Some of the most common internet security threats include:
### Malware
Malware, or malicious software, is designed to harm, exploit, or otherwise compromise a device, network, or service. Common types of malware include:
- **Viruses**: Programs that attach themselves to legitimate software and replicate, spreading to other programs and files.
- **Worms**: Standalone malware that replicates itself to spread to other computers.
- **Trojan Horses**: Malicious software disguised as legitimate software.
- **Ransomware**: Malware that encrypts a user's files and demands a ransom for the decryption key.
- **Spyware**: Software that secretly monitors and collects user information.
### Phishing
Phishing is a social engineering attack that aims to steal sensitive information such as usernames, passwords, and credit card details. Attackers often masquerade as trusted entities in email or other communication channels, tricking victims into providing their information.
### Man-in-the-Middle (MitM) Attacks
MitM attacks occur when an attacker intercepts and potentially alters communication between two parties without their knowledge. This can lead to the unauthorized acquisition of sensitive information.
### Denial-of-Service (DoS) and Distributed Denial-of-Service (DDoS) Attacks
3. Overview
the term hacker described individuals with
advanced programming skills. Hackers used these
programming skills to test the limits and capabilities
of early systems.
5. Types of Hackers : White Hat
Also known as Ethical Hackers who uses their programming skills for
good, ethical and legal purposes.
They may perform network penetration test is an attempt to
compromise networks and systems by using their knowledge of
computer security systems to discover network vulnerabilities.
6. Types of Hackers : Grey Hat
These are the individuals who commit crimes and do arguably
unethical things, but not for personal gain or to cause damage.
7. Types of Hackers : Black Hat
These are unethical criminals who violate the computer and network
security for personal gain, or for malicious reasons, such as attacking
networks
Black Hat hackers exploit vulnerabilities to compromise computer
and network systems.
8. GoldenEye : A case study
On June 27, 2017, a large-scale attack using a variant of the
ransomware family known as GoldenEye affected much of the
world.
In addition to encrypting files on the computer, this
ransomware family is characterized by encrypting the MBR
when it has permissions, thus blocking full access to the
computer.
9. GoldenEye : How It Works?
● This version of the malware is distributed as a DLL with an EXPORT, which is
named with a parameter that changes with each sample to begin the encryption
process on the computer.
● When it runs, it encrypts certain files on compromised system drives. In turn, if it
has administrator permissions, it also encrypts the system boot sector by
preventing access to the computer unless an access key that decrypts the system is
entered.
● That key is assumed to be delivered once payment of the ransom has been made.
● The sample creates a scheduled task to shut down the computer afterwards.
● Upon restarting the computer, GoldenEye displays a fake window indicating that a
disk problem is being solved.
11. GoldenEye : How It Works?
Afterward, it shows the window seeking the ransom.
12. GoldenEye : Propogation
In this case, we’ve seen various methods of entry and propagation on compromised networks:
An attack against the update system of MeDoc, a much-used file management service in
Ukraine (a country gravely affected by the attack)
ETERNALBLUE: This malware variant uses code that exploits the vulnerability published by
Microsoft on March 14, described in the bulletin MS17-010.
PSEXEC: Incorporates remote execution on the system using the PSEXEC command.
WMI: Incorporates remote execution on the system using the WMI command.
13. WannaCry : Tips and Recommendations
● Be cautious of documents contained in emails from untrusted senders. Analyze all
incoming and outgoing emails to detect threats, and filter executables to prevent them
from getting to the end user.
● Keep your operating systems, software, and firmware updated on all devices.
● In this case, as we have detected the use of ETERNALBLUE, we recommend that you
make sure the following patch is installed on all computers across your network:
https://technet.microsoft.com/en-us/library/security/ms17-010.aspx
● Only trust Next-Generation Endpoint Protection solutions.
