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Published Oct 24, 2007 | Updated Sep 15, 2017


Severe |Detected with Windows Defender Antivirus

Aliases: Win32/Bifrose.ACI (ESET) Trojan-Dropper.Win32.Agent.agx (Kaspersky) BackDoor-CEP.svr (McAfee) W32/Malware.ERB (Norman) IRC Trojan (Symantec) PAK_Generic.001 (Trend Micro) Trojan.DR.Agent.UIN (VirusBuster)


Backdoor:Win32/Bifrose.ACI.dr is a Trojan dropper for the Trojan backdoor Win32/Bifrose.ACI. Bifrose.ACI allows an attacker access to the compromised computer, and injects its processes into the Windows shell and the Internet Web browser Internet Explorer.

Scan with antivirus software

Win32/Bifrose.ACI opens a backdoor allowing an attacker access to your computer. To recover from this threat or additional malicious software, you must run a full-system scan with an up-to-date antivirus product. Several companies provide antivirus software for this purpose. For more information, see
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