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Macro Viruses. By Justin Reschke COT 4810. Overview. Macro Virus General Info Famous Macro Viruses Methods of Detection and Removal Conclusion References. What Are Macros?. A simple script type program written in an application’s macro language Used for automated processes in a document.

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macro viruses

Macro Viruses

By Justin Reschke

COT 4810

overview
Overview
  • Macro Virus General Info
  • Famous Macro Viruses
  • Methods of Detection and Removal
  • Conclusion
  • References
what are macros
What Are Macros?
  • A simple script type program written in an application’s macro language
  • Used for automated processes in a document
what are macro viruses
What are Macro Viruses?
  • Most prevalent type of virus in late 1990s and early 2000s
  • Infect a document or template rather than executable code
  • Can infect at different points during a file’s use
macro language requirements for creating macro viruses
Macro Language Requirements for Creating Macro Viruses
  • Macro programs must link to or reside in a particular file
  • Macro programs can be copied from file to another
  • Macro programs must be able to gain control without user intervention
why are they so dangerous
Why are they so dangerous?
  • Can infect multiple types of operating systems
  • People don’t normally think of viruses in documents
  • Easy to learn how to write a macro virus
  • Because office programs are usually integrated, email programs can be used to further spread the virus
famous macro viruses
Famous Macro Viruses
  • Concept - Distributed by Microsoft
  • Considered to be the first macro virus
  • Simply showed the potential for macro viruses
famous macro viruses8
Famous Macro Viruses
  • Melissa Virus – Word97 Virus
  • Spread via Outlook
  • Overwrites first macro in open documents and in the normal.dot template
  • Turns off macro detection
famous macro viruses9
Famous Macro Viruses
  • ILOVEYOU – Uses word macro to send itself in outlook
  • Deletes various mp3, mp2, and jpg files
  • Also sends usernames and passwords to the virus’s author
common programs used by macro viruses
Common Programs Used ByMacro Viruses
  • Access
  • Excel
  • PowerPoint
  • Word
  • AmiPro
detection and removal
Detection and Removal
  • Anti-Virus Tools
    • Scanners, Monitors
  • Integrity Checkers
    • Cyclic Redundancy Check (CRC)
  • Behavior Blockers
summary
Summary
  • Macro languages are good if in the right hands
  • Although they aren’t so dangerous anymore, its important to note macro viruses
  • Securing your system is important
  • Don’t download unknown email attachments
references
References
  • Writing Word Macro Viruses by R. Rattus,
  • http://melissavirus.com, MelissaVirus.com
  • http://www.infoplease.com/ipa/A0872842.html, Computer Virus Timeline
  • http://www.itsecurity.com/papers/kaspersky.htm, Macro-Viruses: Genesis, Truth About the Threat and Methods of Protection