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Backdoor:Win32/Bifrose.EX
Detected by Microsoft Defender Antivirus
Aliases: Trojan.Win32.Midgare.cxc (Kaspersky) W32/Bifrose.SYG (Norman) Win32/Bifrose.NFD (ESET) BackDoor-CEP (McAfee) Bck/Bifrost.gen (Panda) Backdoor.Bifrose (Symantec)
Summary
Backdoor:Win32/Bifrose.EX is a backdoor trojan that allows a remote attacker to access the compromised system, and injects its processes into the Windows Explorer and Internet Explorer processes. It allows a remote attacker to perform certain commands on the compromised system.
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.