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CSE 4273/6273

CSE 4273/6273. Hostile Code October 31, 2005. Hostile Code. Can be any code not specifically authorized by the system administrator. Much as a burglar’s tools, possessing a hacker’s tools can also be criminal.

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CSE 4273/6273

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  1. CSE 4273/6273 Hostile Code October 31, 2005

  2. Hostile Code • Can be any code not specifically authorized by the system administrator. • Much as a burglar’s tools, possessing a hacker’s tools can also be criminal. • Any software that is designed to give one power over another can be hostile, if used in a hostile way.

  3. Categories of Hostile Code • Manual • Autonomous • Internally directed • Externally directed

  4. Categories (continued)

  5. Ways That Hostile Code Can Be Used • Remote Access • Data Gathering • Sabotage • Denial-of-Service • Eluding Detection • Resource Theft • Circumvention of access control • Social Status • Self-fulfillment

  6. Windows Malware • NetBus • Back Orifice • Similar to PC Anywhere

  7. Hostile Info-gathering Software

  8. Application-Specific Sniffers

  9. Distributed Denial of Service Attack Slave Attacker Master Slave Victim Slave

  10. Other Types of Hostile Code • Bombs • Logic Bombs • Time Bombs • Pager Bombs • Mail Bombs • Hiding the Tracks • Deleting log files • Trojan Horses • Files that are trojanized

  11. Continued… • Trojan Horses • Files that are trojanized • Access Exploits • Vulnerability Scanners

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