Submission Summary:

What's been foundSeverity Level
Capability to block security-related software by modifying firewall settings and by disabling security services, such as Windows Update, Norton Autoprotect, Kaspersky Anti-Virus, etc.
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 %Windir%\svchobst.exe
[file and pathname of the sample #1]
50,176 bytes MD5: 0xF8756F0F8FAA4E59ECA85F039005267E
SHA-1: 0x583D361CE1E419F4A6E070105A4BF3F4C809F03B
W32.Virut.CF [Symantec]
Virus.Win32.Virut.ce [Kaspersky Lab]
W32/Virut.n.gen [McAfee]
W32/Scribble-B [Sophos]
Virus:Win32/Virut.BN [Microsoft]
Win32.Virtob [Ikarus]

 

Memory Modifications

Process NameProcess FilenameMain Module Size
svchobst.exe%Windir%\svchobst.exe110,592 bytes
[filename of the sample #1][file and pathname of the sample #1]110,592 bytes

 

Registry Modifications

 

Other details

China

PortProtocolProcess
1035TCPsvchobst.exe (%Windir%\svchobst.exe)
1046TCPsvchobst.exe (%Windir%\svchobst.exe)

Remote HostPort Number
103.45.4.7015266
jbvdae.com443
193.111.136.10880

 

Outbound traffic (potentially malicious)

 

 

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