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Published Mar 16, 2009 | Updated Sep 15, 2017

TrojanDropper:Win32/Hamweq

Detected by Microsoft Defender Antivirus

Aliases: Trojan:Win32/VB.YCG (Microsoft) Dropper.VB.3.AX (AVG) Trojan.Generic.1277940 (BitDefender)

Summary

TrojanDropper:Win32/Hamweq is a trojan that drops and installs Worm:Win32/Hamweq.A, a worm that spreads via removable drives, such as USB memory sticks. It contains an IRC-based backdoor, which may be used by a remote attacker to order the affected machine to participate in Distributed Denial of Service attacks, or to download and execute arbitrary files.
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 (http://go.microsoft.com/fwlink/?LinkId=212742). For more information, see http://www.microsoft.com/protect/computer/viruses/vista.mspx.
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