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Microsoft Security Intelligence
Published Nov 04, 2008 | Updated Sep 15, 2017


Detected by Microsoft Defender Antivirus

Aliases: Trojan.Gimmiv-8 (Clam AV) W32/Ristix.A (Command) MULDROP.Trojan (Dr.Web) variant of Win32/Exploit.MS08-067.A (ESET) New Downloader (McAfee) Troj/Gimmiv-B (Sophos)


Trojan:Win32/Clort.A.dr is a trojan that drops a trojan that exploits computers that have not applied Security Bulletin MS08-067.
Microsoft strongly recommends that users apply the update referred to in  Security Bulletin MS08-067 immediately.
Manual removal is not recommended for this threat. To detect and remove this threat and other malicious software that may have been installed, run a full-system scan with an up-to-date antivirus product such as the Microsoft Safety Scanner ( For more information, see
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