The university network was compromised after password sniffers captured an administrator's password, allowing bots to be installed on internal hosts from which a DDoS attack originated. To protect the network using industry best practices, the university should: 1) implement patch management to fix vulnerabilities, 2) deploy internal firewalls and IDS to segment networks and filter traffic, and 3) install antivirus software on all workstations and improve security policies.
Security+ Guide to Network Security Fundamentals, 3rd Edition, by Mark Ciampa
Knowledge and skills required for Network Administrators and Information Technology professionals to be aware of security vulnerabilities, to implement security measures, to analyze an existing network environment in consideration of known security threats or risks, to defend against attacks or viruses, and to ensure data privacy and integrity. Terminology and procedures for implementation and configuration of security, including access control, authorization, encryption, packet filters, firewalls, and Virtual Private Networks (VPNs).
CNIT 120: Network Security
http://samsclass.info/120/120_S09.shtml#lecture
Policy: http://samsclass.info/policy_use.htm
Many thanks to Sam Bowne for allowing to publish these presentations.
There have been many recent publications that focused on malware evasion techniques – specifically techniques that malware employs to avoid detection and tools that can be used to defeat this evasion. But what happens when malware doesn’t need to evade detection because it first disables the very tools you’re using to detect malware and evade detection? It sounds complicated but the threat is very real and extremely easy to accomplish.
Network Security protects your network and data from breaches, intrusions and other threats. View this presentation now to understand what is network security and the types of network security.
Happy learning!!
Security+ Guide to Network Security Fundamentals, 3rd Edition, by Mark Ciampa
Knowledge and skills required for Network Administrators and Information Technology professionals to be aware of security vulnerabilities, to implement security measures, to analyze an existing network environment in consideration of known security threats or risks, to defend against attacks or viruses, and to ensure data privacy and integrity. Terminology and procedures for implementation and configuration of security, including access control, authorization, encryption, packet filters, firewalls, and Virtual Private Networks (VPNs).
CNIT 120: Network Security
http://samsclass.info/120/120_S09.shtml#lecture
Policy: http://samsclass.info/policy_use.htm
Many thanks to Sam Bowne for allowing to publish these presentations.
There have been many recent publications that focused on malware evasion techniques – specifically techniques that malware employs to avoid detection and tools that can be used to defeat this evasion. But what happens when malware doesn’t need to evade detection because it first disables the very tools you’re using to detect malware and evade detection? It sounds complicated but the threat is very real and extremely easy to accomplish.
Network Security protects your network and data from breaches, intrusions and other threats. View this presentation now to understand what is network security and the types of network security.
Happy learning!!
To Get any Project for CSE, IT ECE, EEE Contact Me @ 09849539085, 09966235788 or mail us - ieeefinalsemprojects@gmail.co¬m-Visit Our Website: www.finalyearprojects.org
Intrusion detection and prevention systemNikhil Raj
This presentation describes how to implement Network based Intrusion Detection System (SNORT) in the network. Detecting and analyzing alerts generated and blocking the Attacker using Access Control List.
Signature-Based or Anomaly-Based Intrusion Detection: The Merits and Demeritsdavid rom
IDS is. It’s simply a security software which is termed to help user or system administrator by automatically alert or notify at any case when a user tries to compromise information system through any malicious activities or at point where violation of security policies is taken.
THREATS are possible attacks.
It includes
The spread of computer viruses
Infiltration and theft of data from external hackers
Engineered network overloads triggered by malicious mass e-mailing
Misuse of computer resources and confidential information by employees
Unauthorized financial transactions and other kinds of computer fraud conducted in the company's name
Electronic inspection of corporate computer data by outside parties
Damage from failure, fire, or natural disasters
Ransomware attacks are not only growing and evolving but are getting more sophisticated by using advanced evasion techniques impacting individuals and organizations across verticals.
Seqrite security solutions provide multi-layered defense that prevents and blocks real-time threats and emerging ransomware infections.
Network security architecture is the planning and design of the camp.pdfaquazac
Network security architecture is the planning and design of the campus network to reduce
security risks in accordance with the institution’s risk analysis and security policies. It focuses on
reduc-ing security risks and enforcing policy through the design and con-figuration of firewalls,
routers, and other network equipment.
Network security is important because it is one of the means to enforce the policies and
procedures developed by the institution to protect information. It is often referred to as the “front
door” in broader discussions of IT security. To the extent that you can block network access to a
computer, you “lock” the door and provide bet-ter protection for that computer and its contents.
Traditional network design has focused on creating a secure net-work perimeter around the
organization and strategically placing a firewall at the point where the network is connected to
the Inter-net. For higher education, this traditional design is problematic; our constituents need
access from off campus to a large number of machines and services on campus. In addition,
because we have many computers on our campus that we cannot implicitly trust, we also must be
concerned about security threats from inside the perimeter protected by a traditional firewall.
These design issues require a different approach to network security. Although it is impossible to
do justice to the topic of network design in a few pages, there are some best practices that I feel
universities should focus on in terms of network design.
Step 1: Eliminate Network Components That Still UseShared Ethernet
Shared Ethernet switches (or hubs) were developed more than a decade ago to interconnect
multiple computers and networks. These hubs retransmit all network traffic to all computers
connected to that hub. The security implication is that if one computer has its security
compromised it can be used to monitor network traffic com-ing from any other computer that
shares the same hub. This could expose passwords and other sensitive information. Today,
switched Ethernet, which isolates traffic intended for one computer from the view of others on
the same switch, is very inexpensive and, hence, it is worth the cost of replacing older hubs.
Step 2: Embrace and Implement the Concept of Defense and Use Multiple Firewalls Within
Your Network
Commercial and Linux-based firewalls are inexpensive enough that you can deploy these in
multiple locations as needed. It is still bene-ficial to have a firewall separating your institutional
network from the connection to the Internet. This firewall, called a border firewall, will provide a
minimal level of protection for all computers on your net-work. The major benefit of this firewall
is that it allows your network and security staff to quickly block external access should a threat
arise, such as when the “SQL worm” was launched in January 2003 In addition to the border
firewall, consider adding internal firewalls to protect areas that requi.
A practical guide to IT security-Up to University projectUp2Universe
This booklet is meant to help teachers and system administrators in high schools when it comes to IT security, digital identity and cybersecurity. The content is universal although it was elaborated under the Up to University project.
To Get any Project for CSE, IT ECE, EEE Contact Me @ 09849539085, 09966235788 or mail us - ieeefinalsemprojects@gmail.co¬m-Visit Our Website: www.finalyearprojects.org
Intrusion detection and prevention systemNikhil Raj
This presentation describes how to implement Network based Intrusion Detection System (SNORT) in the network. Detecting and analyzing alerts generated and blocking the Attacker using Access Control List.
Signature-Based or Anomaly-Based Intrusion Detection: The Merits and Demeritsdavid rom
IDS is. It’s simply a security software which is termed to help user or system administrator by automatically alert or notify at any case when a user tries to compromise information system through any malicious activities or at point where violation of security policies is taken.
THREATS are possible attacks.
It includes
The spread of computer viruses
Infiltration and theft of data from external hackers
Engineered network overloads triggered by malicious mass e-mailing
Misuse of computer resources and confidential information by employees
Unauthorized financial transactions and other kinds of computer fraud conducted in the company's name
Electronic inspection of corporate computer data by outside parties
Damage from failure, fire, or natural disasters
Ransomware attacks are not only growing and evolving but are getting more sophisticated by using advanced evasion techniques impacting individuals and organizations across verticals.
Seqrite security solutions provide multi-layered defense that prevents and blocks real-time threats and emerging ransomware infections.
Network security architecture is the planning and design of the camp.pdfaquazac
Network security architecture is the planning and design of the campus network to reduce
security risks in accordance with the institution’s risk analysis and security policies. It focuses on
reduc-ing security risks and enforcing policy through the design and con-figuration of firewalls,
routers, and other network equipment.
Network security is important because it is one of the means to enforce the policies and
procedures developed by the institution to protect information. It is often referred to as the “front
door” in broader discussions of IT security. To the extent that you can block network access to a
computer, you “lock” the door and provide bet-ter protection for that computer and its contents.
Traditional network design has focused on creating a secure net-work perimeter around the
organization and strategically placing a firewall at the point where the network is connected to
the Inter-net. For higher education, this traditional design is problematic; our constituents need
access from off campus to a large number of machines and services on campus. In addition,
because we have many computers on our campus that we cannot implicitly trust, we also must be
concerned about security threats from inside the perimeter protected by a traditional firewall.
These design issues require a different approach to network security. Although it is impossible to
do justice to the topic of network design in a few pages, there are some best practices that I feel
universities should focus on in terms of network design.
Step 1: Eliminate Network Components That Still UseShared Ethernet
Shared Ethernet switches (or hubs) were developed more than a decade ago to interconnect
multiple computers and networks. These hubs retransmit all network traffic to all computers
connected to that hub. The security implication is that if one computer has its security
compromised it can be used to monitor network traffic com-ing from any other computer that
shares the same hub. This could expose passwords and other sensitive information. Today,
switched Ethernet, which isolates traffic intended for one computer from the view of others on
the same switch, is very inexpensive and, hence, it is worth the cost of replacing older hubs.
Step 2: Embrace and Implement the Concept of Defense and Use Multiple Firewalls Within
Your Network
Commercial and Linux-based firewalls are inexpensive enough that you can deploy these in
multiple locations as needed. It is still bene-ficial to have a firewall separating your institutional
network from the connection to the Internet. This firewall, called a border firewall, will provide a
minimal level of protection for all computers on your net-work. The major benefit of this firewall
is that it allows your network and security staff to quickly block external access should a threat
arise, such as when the “SQL worm” was launched in January 2003 In addition to the border
firewall, consider adding internal firewalls to protect areas that requi.
A practical guide to IT security-Up to University projectUp2Universe
This booklet is meant to help teachers and system administrators in high schools when it comes to IT security, digital identity and cybersecurity. The content is universal although it was elaborated under the Up to University project.
Network Based Intrusion Detection and Prevention Systems: Attack Classificati...researchinventy
Complex and common security attackshave become a common issue nowadays. Success rate of detecting these attacks through existing tools seems to be decreasing due to simple rule-bases Some attacks are too complex to identify for today’s firewall systems.This paper highlights various security attacks classification techniques pertaining to TCP/IP protocol stack, it also covers an existingintrusion detection techniques used for intrusion detection , and features of various open source and commercial Network Intrusion Detection and Prevention (IDPS) tools. Finally paper concludes with comparison and evaluation of an open source and commercial IDPS tools and techniques which are used to detect and prevent the security attacks.
How To Learn The Network Security
Slide berikut merupakan slide yang berisikan dasar-dasar bagi kita dalam memahami konsep keamanan jaringan komputer, baik dari sisi inftrastruktur, teknologi dan paradigma bagi pengguna.
Materi yang diberikan sudah disusun oleh Pakar yang merupakan Trainer CEH dan memang berkompeten dibidang keamanan jaringan.
Slide ini saya dapatkan dari beliau saat mengikut training Certified Computer Security Officer (CCSO) dan Certified Computer Security Analyst (CCSA) dari beliau.
Semoga bermanfaat sebagai acuan bagi kita untuk belajar tentang keamanan jaringan komputer.
Terimakasih
Top encryption tools like McAfee are popular among business users. McAfee provides full disk encryption for desktops, laptops, and servers. The algorithm uses Advanced Encryption Standard(AES) with 256-bit keys. McAfee AES is certified by US Federal Information Processing Standard. There is also ready integration of multi-layer authentication.
3.8 Ways to Establish Secure Protocols in a Digital Organization.pdfBelayet Hossain
How to establish secure protocols in a digital organization? In recent years, massive cybercrimes have targeted businesses all around the world. Organizations are constantly subjected to security breaches, including data leaks, broken authentication, database hacking, malware infestations, and denial of service attacks on their networks, web applications, and servers.
https://itphobia.com/8-ways-to-establish-secure-protocols-in-a-digital-organization/
Information Security Management System in the Banking SectorSamvel Gevorgyan
Information Security Management System design. Information security governance approaches comparison. ISMS processes. ISMS implementation. The biggest threats in the Banking sector. The future of banking and payment systems. The challenges and future of banking. Cybersecurity solutions for Financial services.
Protect Your IT Infrastructure from Zero-Day Attacks and New VulnerabilitiesSymantec
Protecting a business’s IT infrastructure is complex. Take, for example, a retailer operating a standard multi-tier infrastructure with both customer and partner portals. The infrastructure typically employs a mix of databases, in-house applications, third-party applications and web services, running in a heterogeneous OS environment and is constantly changing as technology advances and new business applications are added.
To ensure a base level of security and compliance, IT installs antivirus and uses a complex series of static network zones to protect the infrastructure.
This approach makes it difficult and slow to deploy new business applications and only provides protection from a casual attacker. The architecture becomes more complex as more applications and business services are introduced. Increasing IT infrastructure complexity also exacerbates existing challenges in protecting the environment from zero-day threats and from malicious actors eager to take advantage of newly discovered vulnerabilities.
Cybersecurity threats are also evolving with advances in technology. As technology advances, so do the methods and techniques used by cybercriminals to breach security systems and steal sensitive information.
WoMaster's new White Paper introduces Cyber Security features according to IEC62443 standard and proposes solutions for new cyber risks of industry 4.0.
Similar to Industry Best Practice against DDoS Attacks (20)
1. Industry best practices to
protect the network against
DDoS attacks
Public University
By Marcelo Silva
2. INTRODUCTION
The public university has faced a DDoS attack on its web-based registration system.
The network was compromised after some password sniffers have been deployed
and one of them has captured an administrator password and then the bots were
installed on some internal hosts, located in the university’s Computer labs, where the
attacks were originated from.
Thus, the internal network has proven be vulnerable, while the university perimeter
network is well protected behind of some technologies such as firewall, NIDS and
ACLs.
3. How could the industry best practices protect the
university’s network?
1. Implementing a Patch Management System
2. Deploying Internal firewalls, IDS and creating a DMZ
3. Install an Antivirus solution on all workstations
4. Improving Security Policies
5. Investing in Security Awareness Program
A best practice is a method or technique that has consistently shown results superior
to those achieved with other means. (Wikipedia, 2013)
4. Implementing a Patch Management System
Control and fix Operating Systems and Applications vulnerabilities:
Buffer overflow
Remote Code Execution
Elevation of Privilege
Automate patches deployment
Avoid administrator’s password exposure during patches deployment
5. Deploying Internal firewalls and IDS
Create network segmentation
Create a Demilitarized network zone (DMZ) for the webservers
Filter internal traffic
Deploy IDS sensors into the internal networks
Deploy host-based IDS
Many organizations continue to attribute a significant percentage of their corporate “cyber
losses” to inside attacks, indicating the need for more robust firewall filtering throughout
the enterprise network segments. (Cisco, 2006)
6. Install an Antivirus solution on all workstations
Deploy an Antivirus software on all computers
Protecting file systems, Internet browsing and messaging activities
(Virus, Worms, Backdoors, Rootkits, Trojans)
Deploy a centralized management system for the Antivirus
7. Improving Security Policies
Limit incoming connections
Use encryption for network communication
Minimize Remote Access (strong authentication, peer-to-peer VPNs)
Use secure protocols
Educate Users (Information Security Awareness Program)
8. References
EC Council (2010). Ethical Hacking and Countermeasures, Threats and
Defense Mechanisms, Clifton Park, NY: EC-Council Press.
Cisco Systems (2006). Deploying Firewalls Throughout Your Organization.
Retrieved January, 10, 2013, from
http://www.cisco.com/en/US/prod/collateral/vpndevc/ps5708/ps5710/ps1
018/prod_white_paper0900aecd8057f042.pdf.
Wikipedia (2013). Best Practice. Retrived February, 08, 2013, from
http://en.wikipedia.org/wiki/Best_practice
Editor's Notes
AnalysisBy using some specific industry best practices we’ll be able to protect the university network against DDoS attacks, providing:Protection for Web ServersImplementing an automated system to manage patchesProtections against Password Sniffers and keystrokes Protection against Social EngineeringImplementing IDS and Firewall between internal networksImplementing Host-based IDS on all workstationsInstalling Antivirus software and keep them updated on all workstations Improve some security policies to separate regular accounts from administrative accounts
“A best practice is a method or technique that has consistently shown results superior to those achieved with other means.” (Wikipedia, 2013) Here we’ll present some industry best practices in order to protect the university’s network against DoS and DDoS attacks, by implementing a system to manage the patches and security hotfixes, firewalls between internal networks, and antivirus solution. Also, the University has to improve its security information policies and implement a security awareness program to educate both employees and students.The denial-of-service (DoS) is designed to consume resources in order to bring the services unavailable, by bringing them down or at least significantly slowing performance. In the same way, the Distributed Denial of Service (DDoS) has the same goal, but the attacks originated from multiple sources (hosts/networks) simultaneously. (EC-Council, 2010).
Patch Management SystemControl and fix the Operating Systems and Applications vulnerabilitiesSome vulnerabilities such as Elevation of Privilege on a SQL Server, could allow an attacker to inject a script into the user's web browser, and take action on behalf of a real user.Thus, a Patch Management system can help an Administrator to:Monitoring computers that are running without the authorized and published vendor’s patches and service packs;Deploy missing patches on the systems according to the priorities/levels (Critical, Major, Important).Automate patches deploymentCreate auto-tasks to run in a daily basis against the systems and schedule the patches deployment according to the maintenance windows and get all the servers, workstations and network devices such as Firewalls, Routers and Switches updated and fully patched.Avoid administrators using administrator passwords to deploy patches remotely on the networkUse some systems management software such as the Microsoft SCCM, LANDesk and VMware Update Manager to deploy patches remotely. This way you avoid expose unnecessarily admin password and you don’t have to login into local servers and workstationsCreate the deployment tasks to be ran by service accounts instead of Administrators accounts. This way, the admin password will be less exposed
“Many organizations continue to attribute a significant percentage of their corporate “cyber losses” to inside attacks, indicating the need for more robust firewall filtering throughout the enterprise network segments”. (Cisco, 2006)Deploying Internal firewalls and Intrusion Detection systems (IDS):Create a Demilitarized Zone (DMZ) for the University Web serversFilter internal trafficThe packets from all internal networks, including the Computer Labs networks, which should pass through the firewalls in order to reach out the web servers. Implement Network-ingress filtering to try to prevent source address spoofing traffic.Define Rate-limiting network traffic for some protocol such as ICMP.Deploy IDS sensors into the internal networksDeploy host-based IDSDetecting suspicious local activitiesControl binaries execution and files changing Monitoring the local systems according to the known signatures on the Intrusion Detection System.
The Antivirus software is a security tool against Virus, Worms, Malwares, Backdoors, Rootkits, and Trojans. By installing an antivirus software on all university computers, the local computers will be safe from suspicious/unauthorized software running, thus bringing more security for user’s activities such as Internet browsing and sending/receiving emails.Also, in order to monitor and perform engine upgrades and virus signature updates, we’ll deploy a centralized management system for the Antivirus. Therefore the updates will not be laid on the user's responsibility.
The public university should enhance its information security policies, establishing some procedures such as:Encryption usage for network traffics (IPSec/HTTPS/FTPS)Encryption and digital signatures for internal emailsLimit the number of incoming connection for specific systemsMinimize the Remote Access and enforce strong authentication (Smartcard / RSA Token +Active Directory account)Implement peer-to-peer VPNs for AdministratorsEducate Users by implementing an Information Security Awareness Program