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  2. Threats
  3. Virus and threat descriptions
  4. Xtac

Xtac

Name : Xtac
Category:Virus
Type:Virus
Platform:DOS

Summary

Xtac stays resident in memory and infects COM and EXE files when they are executed. COMMAND.COM is infected by overwriting an unused area.

Additional Details


Sometimes the virus deletes files with the following extensions:
  •  COM
  • EXE
  • SYS
  • BAT
  • OBJ
  • OVR
  • OVL
  • INI
  • CFG
  • TPU
  • HLP
  • TPL
  • BGI
  • CHR

Xtac contains the following unencrypted internal text:
good news! you have justbeen smitten by XTAC - lyndon siao, usc-tc
Xtac was reported to be in the wild in the USA in January 1996.