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Published Oct 14, 2007 | Updated Sep 15, 2017

TrojanDownloader:Win32/Zlob.gen!H

Detected by Microsoft Defender Antivirus

Aliases: Win32/Puper!generic (CA) Trojan-Downloader.Win32.Zlob.aoy (Kaspersky) Puper (McAfee) W32/Zlob.gen68 (Norman) Troj/Zlobun-Gen (Sophos) Trojan-Downloader.Zlob.Media-Codec (Sunbelt Software) Trojan.Zlob (Symantec) Trojan.Emcodec (Symantec) TROJ_ZLOBUN.AJ (Trend Micro)

Summary

TrojanDownloader:Win32/Zlob.gen!H is generic detection for a component of Win32/Zlob, a large Trojan family that modifies Internet Explorer's settings, alters and redirects the user's default Internet search page and home page, and attempts to download and execute arbitrary files (including additional malicious software). Microsoft has received reports that this Trojan has been distributed in the wild masquerading as a video codec or password manager application.
Manual removal is not recommended for this threat. Use Microsoft Security Essentials 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 http://www.microsoft.com/protect/products/computer/default.mspx.
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