Submission Summary:

What's been foundSeverity Level
Produces outbound traffic.
Creates a startup registry entry.
There were some system executable files modified, which might indicate the presence of a PE-file infector.
Contains characteristics of an identified security risk.

 

Technical Details:

 

Possible Security Risk

Threat CategoryDescription
A virus capable to modify other files by infecting, prepending, or overwriting them them with its own body

 

File System Modifications

#Filename(s)File SizeFile HashAlias
1 [file and pathname of the sample #1]
%Windir%\WindowsUpdate\mn.exe
234,496 bytes MD5: 0xB2AC7CE4F90C84D1B8230966054D05D8
SHA-1: 0x8794CF04F0778C940DEACE85EE6D339E502FAF0A
W32.Ramnit!inf [Symantec]
Virus.Win32.Nimnul.a [Kaspersky Lab]
W32/Ramnit.a [McAfee]
W32/Patched-I [Sophos]
Virus:Win32/Ramnit.A [Microsoft]
Win32.Virtob [Ikarus]
Win32/Ramnit.B [AhnLab]
2 [part of the sample filename]1Srv.exe 86,528 bytes MD5: 0xB4992209129D19EDFDA41EB69C043FF3
SHA-1: 0xD584D6A0C37C3B82220F80C7CB8305A576F3EAE2
W32.Virut.CF [Symantec]
Packed.Win32.Krap.hm [Kaspersky Lab]
PWS-Zbot.gen.pq [McAfee]
W32/Scribble-B [Sophos]
Virus:Win32/Virut.BN [Microsoft]
Win32.Virtob [Ikarus]
3 %Windir%\WindowsUpdate\.temp.fortest 0 bytes MD5: 0xD41D8CD98F00B204E9800998ECF8427E
SHA-1: 0xDA39A3EE5E6B4B0D3255BFEF95601890AFD80709
(not available)
4 %Windir%\WindowsUpdate\mnSrv.exe 86,528 bytes MD5: 0xC73800D1D19D38A21C5E72B37B5CBB06
SHA-1: 0xDBD12B04996EC2EA67C9AF9CE663A62A40217C88
W32.Virut.CF [Symantec]
Packed.Win32.Krap.hm [Kaspersky Lab]
PWS-Zbot.gen.pq [McAfee]
W32/Scribble-B [Sophos]
Virus:Win32/Virut.BN [Microsoft]
Win32.Virtob [Ikarus]

 

Memory Modifications

Process NameProcess FilenameMain Module Size
mnsrv.exe%Windir%\windowsupdate\mnsrv.exe77,824 bytes
[filename of the sample #1][file and pathname of the sample #1]262,144 bytes

 

Registry Modifications

 

Other details

Russian Federation

Remote HostPort Number
besurchx.f3322.org52
ceqclr.com443
83.133.119.19780

 

Outbound traffic (potentially malicious)

 

 

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