Published Sep 05, 2010 | Updated Sep 15, 2017


Severe |Detected with Windows Defender Antivirus

Aliases: Net-Worm.Win32.Koobface.gxg (Kaspersky) Worm.Koobface.EWF (VirusBuster) Worm/Generic.BQWA (AVG) Worm/Koobface.gxg (Avira) Worm.Generic.267534 (BitDefender) Net-Worm.Win32.Koobface (Ikarus) Generic Proxy!v (McAfee) Trojan.Win32.Generic.522A8B92 (Rising AV) Mal/KoobHeur-A (Sophos) Trojan.Win32.Generic!BT (Sunbelt Software) W32.Koobface (Symantec)


TrojanProxy:Win32/Koobface.gen!Q is a component of the Win32/Koobface family. Koobface is a multi-component family of malware used to compromise machines and direct them in various ways at the attacker's will. This could include using the affected machine to distribute additional malware, generate 'pay per click' advertising revenue, steal sensitive data, break captchas, and subvert the affected user's online experience. Its components are varied, but include a worm that spreads by utilizing social networking sites such as Facebook and MySpace.
To detect and remove this threat and other malicious software that may be installed in your computer, run a full-system scan with an up-to-date antivirus product such as the following:
For more information on antivirus software, see
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