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TrojanDownloader:Win32/Webpwnd.A
Detected by Microsoft Defender Antivirus
Aliases: Win-Trojan/Agent.90112.PQ (AhnLab) TR/Dldr.meb.A.2 (Avira) Trojan-Downloader.MSIL.Agent.gc (Kaspersky) Downloader-BQL (McAfee)
Summary
TrojanDownloader:Win32/Webpwnd.A is a detection for specially crafted .NET assemblies used in an attack that exploits a vulnerability in Microsoft DirectShow (CVE-2009-1537).
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.