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: 0xAC4DB574BD7EBBA806C647A8716BE73B
SHA-1: 0x6CC7F15C5101404AABAFE0D3AD012C2D16EEFD8F
W32.Ramnit!inf [Symantec]
Virus.Win32.Nimnul.a [Kaspersky Lab]
W32/Ramnit.a [McAfee]
W32/Patched-I [Sophos]
Virus:Win32/Ramnit.A [Microsoft]
Gen.Trojan.Heur [Ikarus]
Win32/Ramnit.B [AhnLab]
2 [part of the sample filename]1Srv.exe 86,528 bytes MD5: 0x3CC9C838D315A747054D1FAF6977F696
SHA-1: 0x91A6DC208A9853FAAF280FB0F9DF3B0EDCD80996
W32.Virut.CF [Symantec]
Packed.Win32.Krap.hm [Kaspersky Lab]
PWS-Zbot.gen.pq [McAfee]
W32/Scribble-B [Sophos]
Virus:Win32/Virut.BN [Microsoft]
Gen.Trojan.Heur [Ikarus]
3 %Windir%\WindowsUpdate\.temp.fortest 0 bytes MD5: 0xD41D8CD98F00B204E9800998ECF8427E
SHA-1: 0xDA39A3EE5E6B4B0D3255BFEF95601890AFD80709
(not available)
4 %Windir%\WindowsUpdate\mnSrv.exe 86,528 bytes MD5: 0x58552B9CA12B834A482F6E5689E8C89C
SHA-1: 0xB84676F9ED8C0BB42A454EF87136B30E8A3F7D13
W32.Virut.CF [Symantec]
Packed.Win32.Krap.hm [Kaspersky Lab]
PWS-Zbot.gen.pq [McAfee]
W32/Scribble-B [Sophos]
Virus:Win32/Virut.BN [Microsoft]
Virus.Win32.Virut [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
103.40.102.16752
vnyovf.com443
83.133.119.19780

 

Outbound traffic (potentially malicious)

 

 

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