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Microsoft Security Intelligence
Published Aug 28, 2008 | Updated Sep 15, 2017

Trojan:Win32/C2Lop.A

Detected by Microsoft Defender Antivirus

Aliases: Win-Trojan/Swizzor.7168.B (AhnLab) Trojan-Downloader.Win32.Swizzor.bd (Kaspersky) Adware-Lop (McAfee) W32/DLoader.BCUH (Norman) Downloader.Lop (Symantec)

Summary

Trojan:Win32/C2Lop.A modifies Web browser settings, adds Web browser bookmarks to advertisements, updates itself and delivers pop-up and contextual advertisements. 
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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