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Computer Viruses. History. Malicious software – 1970’s Programs distributed over exchange servers speeds spread of viruses Brain sparks term: Virus. Historical Viruses. Brain VirDem Lehigh Chameleon – Polymorphic DAME VCL. More History. CDs make removal difficult Macro viruses
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History • Malicious software – 1970’s • Programs distributed over exchange servers speeds spread of viruses • Brain sparks term: Virus
Historical Viruses • Brain • VirDem • Lehigh • Chameleon – Polymorphic • DAME • VCL
More History • CDs make removal difficult • Macro viruses • Remote control becomes prevalent • Spread via email • Downloading and file sharing
Virus Types and Descriptors • Resident • Direct Action • Overwrite • Boot Sector • Macro • Directory • Encrypted
More Viruses • Polymorphic • Multipartite • File Infector • Companion • FAT • XSSV • Sentinel
Even More Viruses • Stealth • Armored • Sparse Infector • Fast and Slow Infector • Worms • Trojan Horses • Logic Bombs • Hoaxes
Anti-Virus • Searches for known viruses • Requirements • Bit-level work • Good error handling • Fast, dynamic life cycle • Also identifies suspicious behavior • Scans incoming and outgoing behavior
Prevention and Aid • Techniques • Deletion • Quarantine • Repair • Polymorphic viruses make detection via dictionary difficult • Suspicious behavior’s advantages • Sandboxes and Blueprints
Other Methods • Education • Email filtering • User knowledge
Spyware • Definition • Symptoms • Methods of infection • Results • Phone home • Remote access • Zombie attacks
Spyware • Rootkit • Sony • Prevention • Anti-spyware programs • Not always the most effective • Safe internet practices
Survey • We surveyed 40 people on the Pace University Campus • We asked questions related to demographic information and regarding virus preparedness
Conclusion • Viruses and Spyware pose an increasing threat • Prevention methods do not include software alone • Many methods which are common knowledge to those familiar with computers are not common practice