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.
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 %System%\ccuwco.exe
[file and pathname of the sample #1]
137,216 bytes MD5: 0x37735AA89D5DFDDCDD459348CF2D1EBF
SHA-1: 0x141EB6787F50B7A3C9DF3C657B0147CCA1D272C1
W32.Virut.CF [Symantec]
Virus.Win32.Virut.ce [Kaspersky Lab]
W32/Virut.n.gen [McAfee]
W32/Scribble-B [Sophos]
DDoS:Win32/Nitol.A [Microsoft]
Trojan.Win32.ServStart [Ikarus]

 

Memory Modifications

Process NameProcess FilenameMain Module Size
ccuwco.exe%System%\ccuwco.exe159,744 bytes
[filename of the sample #1][file and pathname of the sample #1]159,744 bytes

Service NameDisplay NameStatusService Filename
NationalxbgNationalthl Instruments Domain Service"Running"%System%\ccuwco.exe

 

Registry Modifications

 

Other details

China

PortProtocolProcess
1035TCPccuwco.exe (%System%\ccuwco.exe)

Remote HostPort Number
parsing1.ddns.net7474
qbfzwo.com443

 

Outbound traffic (potentially malicious)

 

 

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