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ThreatExpert's Statistics for Backdoor.MSIL [Ikarus]:

Backdoor.MSIL [Ikarus] is also known as:
Threat AliasNumber of Incidents
Backdoor.MSIL.Agent.f [Kaspersky Lab]1
Backdoor.Trojan [Symantec]1
Generic BackDoor [McAfee]1

Backdoor.MSIL [Ikarus] is known to be created as:
%System%\winusr.exe
Note: %System% is a variable that refers to the System folder. By default, this is C:\Windows\System (Windows 95/98/Me), C:\Winnt\System32 (Windows NT/2000), or C:\Windows\System32 (Windows XP).