1. Symantec/
  2. Security Response/
  3. Backdoor.Cow


Risk Level 1: Very Low

December 27, 2002
February 13, 2007 11:46:52 AM
Also Known As:
Backdoor.Cow [KAV]
Trojan Horse
Systems Affected:

Backdoor.Cow is backdoor Trojan that allows a hacker to control the computer. By default it opens port 2001. The existence of the file Syswindow.exe is a sign of possible infection. It is written in the Delphi programming language and is packed with UPX.

Antivirus Protection Dates

  • Initial Rapid Release version December 27, 2002
  • Latest Rapid Release version March 3, 2008 revision 035
  • Initial Daily Certified version December 27, 2002
  • Latest Daily Certified version March 3, 2008 revision 037
  • Initial Weekly Certified release date December 30, 2002
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
Writeup By: Kaoru Hayashi

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STAR Antimalware Protection Technologies
2016 Internet Security Threat Report, Volume 21
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