Network Security

1
Network Security

• Botnets

2
Group Members

• Chris Hood
• Phuc Dao
• John Testrake
• Ryan Lockhart

3
Botnet Outline

• Background
• Uses
• Defend against Botnets
• Website Design
• Lessons Learned
• Further Research
• Conclusions

4
Botnet Background

• Botnet combination of two words Robot and
  Network
• Uses trojans, viruses, and worms to propagate
  across the internet
• Communicate to Botmaster using Internet Relay
  Chat (IRC)
• Typical targets are broadband connections
  (residential and universities)

5
Botnet Uses

• Backdoor
• Spyware
• E-Mail Spam
• Identity Theft
• Host illegal data
• Malware
• Online ad clickers
• Distributed Denial of Service
• Selling

6
Crackdown on Botnets

• Public IRC server administrators shutdown botnet
  channels
• Dynamic DNS monitor unusual traffic and terminate
  accounts
• Different Methods of Tracking down botmasters
• Punishments and laws

7
Defending against Botnets

• Antivirus
• Firewall
• Malware/Spyware scanner
• Mobile device threats
• Operating System patches
• User education/training

8
Defending against Botnets (cont.)

• E-mail Filters
• Honeynets/Honeypots
• Intrusion Detection Systems

9
Defending against Botnets (cont.)

• Shadowserver
• Analyzing and reducing cyber-threats and
  vulnerabilities against potential targets
• Disseminating cyber threat information
• Coordination incident response
• Disassembling and sandboxing viruses and Trojans
• Tracking and reporting on botnet activities
• Monitoring and reporting on malicious attackers

10
Botnet Website

• http//www.prism.gatech.edu/gte903p/
• Supporting paper

11
Website Design

• Target Audience Basic and intermediate level
  network administrators
• Navigation bar with seven Sections Main,
  Background, Uses/Users, Defending, Links,
  Glossary, Authors
• Snazzy Banner

12
Lessons Learned

• Microsoft Word is not a good web development tool
• Save copy of reference documents
• Botmasters are difficult to catch

13
Further Research

• Reference details on programming aspects of
  botnets
• Find more whitepapers and books dedicated to
  Botnets
• GT spin-off company, Damballa Inc., co-founded by
  Merrick Furst

14
Conclusions

• Background of Botnets
• Botnets Uses
• Defense against Botnets
• Website Design
• Lessons Learned
• Further Research

Questions?