Threat Description

Xtac

Details

Aliases: Xtac, Xtac
Category: Malware
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.



Removal


Automatic action

Once detected, the F-Secure security product will automatically disinfect the suspect file by either deleting it or renaming it.

More

Detailed instructions for F-Secure security products are available in the documentation found in the Downloads section of our Home - Global site.

You may also refer to the Knowledge Base on the F-Secure Community site for further assistance.



Technical 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.





Description Created: 2006-01-01 15:22:14.0

Description Last Modified: 2006-01-01 00:00:00.0


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