Published Sep 05, 2007 | Updated Sep 15, 2017


Severe |Detected with Windows Defender Antivirus

Aliases: Win32/Pecoan (CA) (Kaspersky) W32/Nuwar@MM (McAfee) W32/Dref-AP (Sophos) Storm.Worm (Sunbelt Software)


Backdoor:Win32/Nuwar.A is a backdoor Trojan that allows unauthorized access to an infected computer. The Trojan receives commands indirectly from a remote attacker via its connection to a malicious peer-to-peer network. This Trojan also contains advanced stealth functionality that allows it to hide particular files, registry entries and registry values.
Manual removal is not recommended for this threat. Use the Microsoft Malicious Software Removal Tool, Microsoft Security Essentials, Microsoft Safety Scanner, or another up-to-date scanning and removal tool to detect and remove this threat and other unwanted software from your computer. For more information on Microsoft security products, see
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