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Unmasking Metamorphic Viruses: Risks, Defenses, and Camouflage

Delve into the world of metamorphic viruses, their dangers, and how to defend against them. Learn about their camouflage techniques and the challenges they pose to antivirus programs. Discover general virus defenses and anti-virus program techniques to safeguard your computer effectively.

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Unmasking Metamorphic Viruses: Risks, Defenses, and Camouflage

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  1. Metamorphic Viruses Pat Walpole

  2. Introduction • What are metamorphic viruses • Why they are dangerous • Defenses against them

  3. Virus Camouflage Types • None • Encrypted • Polymorphic • Metamorphic

  4. No Camouflage Myles Jordan [1]

  5. Encrypted Myles Jordan [1]

  6. Polymorphic Myles Jordan [1]

  7. Metamorphic Myles Jordan [1]

  8. Why Metamorphism is a Problem • Provides excellent camouflage for the virus code • Difficult for anti-virus programs to detect • Difficult for an IDS to detect

  9. General Virus Defenses • Do not run or install software from an untrusted source • Do not open email attachments unless you are 100% sure they are from a trusted source • Use a good antivirus program and keep it updated

  10. Anti Virus Program Techniques • Run suspected files in an emulator • Perform heuristic analysis on the behaviors of the program • False positives • May not find viruses that are event based

  11. Conclusion • Virus writers will always find ways to beat anti-virus protection • Metamorphism is a very effective camouflage technique • Keep your computer protected and practice safe computing

  12. References • [1] Jordan, Myles. Anti-Virus Research Dealing with Metamorphism. http://www3.ca.com/securityadvisor/newsinfo/collateral.aspx?cid=48051

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