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Microsoft Security Intelligence
Published Apr 14, 2009 | Updated Sep 15, 2017

Backdoor:Win32/Tofsee.I

Detected by Microsoft Defender Antivirus

Aliases: Win-Trojan/Agent2.31744 (AhnLab) Trojan.Win32.Agent2.gik (Kaspersky) W32/Smalltroj.LNZX (Norman) TrojanDropper:Win32/Tofsee.gen!A (Microsoft)

Summary

Backdoor:Win32/Tofsee.I is a component of Win32/Tofsee - a multi-component family of backdoor trojans that act as a spam and traffic relay.
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 Microsoft Security Essentials, or the Microsoft Safety Scanner. For more information about using antivirus software, see http://www.microsoft.com/security/antivirus/av.aspx.
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