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Risk Level 1: Very Low

October 24, 2008
October 29, 2008 3:48:55 PM
Also Known As:
Troj/Gimmiv-A [Sophos], Trojan-Spy:W32/Gimmiv.A [F-Secure], Win32/Gimmiv.A [Computer Associates], Gimmiv.A [Panda Software], Win32/Gimmiv.B [Computer Associates], Spy-Agent.da [McAfee], WORM_GIMMIV.A [Trend], Troj/Gimmiv-Gen [Sophos]
Infection Length:
397,312 bytes
Systems Affected:
Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows Vista, Windows XP
CVE References:
CVE-2006-3439, CVE-2008-4250
Trojan.Gimmiv.A is a Trojan horse that opens a back door, attempts to exploit remote vulnerabilities, and may steal information from the compromised computer.

Note: Definitions before October 24, 2008 may detect this threat as Infostealer.

Antivirus Protection Dates

  • Initial Rapid Release version pending
  • Latest Rapid Release version September 28, 2010 revision 054
  • Initial Daily Certified version October 24, 2008 revision 024
  • Latest Daily Certified version September 28, 2010 revision 036
  • Initial Weekly Certified release date October 29, 2008
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.

Threat Assessment


  • Wild Level: Low
  • Number of Infections: 0 - 49
  • Number of Sites: 0 - 2
  • Geographical Distribution: Low
  • Threat Containment: Easy
  • Removal: Easy


  • Damage Level: Medium
  • Payload: Opens a back door.
  • Releases Confidential Info: Gathers confidential information.
  • Degrades Performance: May exploit remote vulnerabilities which degrades performance.


  • Distribution Level: Low
Note: On May 14, 2015, modifications will be made to the threat write-ups to streamline the content. The Threat Assessment section will no longer be published as this section is no longer relevant to today's threat landscape. The Risk Level will continue to be the main threat risk assessment indicator.
Writeup By: Elia Florio
STAR Antimalware Protection Technologies
Internet Security Threat Report