1. Symantec/
  2. Security Response/
  3. Trojan.QQMess


Risk Level 1: Very Low

September 25, 2003
February 13, 2007 12:08:02 PM
Also Known As:
Backdoor.Semes, TrojanSpy.Win32.Sincom.az [Kas, PWS-Sincom [McAfee]
Trojan Horse
Systems Affected:

Trojan.QQMess is a Trojan Horse that inserts various messages on your outgoing QQ instant messages. It also changes the Internet Explorer home page. Both the messages and the home page URL are configurable.

Note: Virus definitions dated prior to October 23, 2003 detect some components of this Trojan as Backdoor.Semes.

Antivirus Protection Dates

  • Initial Rapid Release version September 26, 2003
  • Latest Rapid Release version March 23, 2017 revision 037
  • Initial Daily Certified version September 26, 2003
  • Latest Daily Certified version March 23, 2017 revision 041
  • Initial Weekly Certified release date October 1, 2003
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
Writeup By: Scott Gettis

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