1. Symantec/
  2. Security Response/
  3. Exe_Bug.C


Risk Level 1: Very Low

February 13, 2007 11:54:37 AM
Also Known As:
CMOS Killer, Hooker, Int_0B, CMOS-1

The EXE_Bug.C virus is a mildly complicated virus that infects the master boot record of hard drives and the floppy boot sector. It uses several advanced techniques to both spread itself and hide itself from the user. To spread, the virus makes modifications to the systems CMOS drive values, making the system look as if it does not have any floppy drives.

Antivirus Protection Dates

  • Initial Rapid Release version December 21, 2000
  • Latest Rapid Release version December 21, 2000
  • Initial Daily Certified version December 21, 2000
  • Latest Daily Certified version July 11, 2008 revision 016
  • Initial Weekly Certified release date pending
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.

Search Threats

Search by name
Example: W32.Beagle.AG@mm
STAR Antimalware Protection Technologies
2016 Internet Security Threat Report, Volume 21
  • Twitter
  • Facebook
  • LinkedIn
  • Google+
  • YouTube