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Microsoft Security Intelligence
Published Jan 09, 2011 | Updated Sep 15, 2017


Detected by Microsoft Defender Antivirus

Aliases: (McAfee) WORM_KELIHOS.SM (Trend Micro) Troj/FakeAV-CHM (Sophos)


Backdoor:Win32/Kelihos.A is a trojan that distributes spam email messages that may contain web links to installers of itself. It may also connect to remote computers to exchange configuration data and to download and execute arbitrary files.
To detect and remove this threat and other malicious software that may have been installed in your computer, run a full-system scan with an up-to-date antivirus product such as the following: For more information about using antivirus software, see
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