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.
Downloads/requests other files from Internet.
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 %AppData%\Microsoft\Installer\{B53D42E8-872B-430E-82D4-80065A31FCE1}\lpk.dll
[pathname with a string SHARE]\lpk.dll
[pathname with a string SHARE]\lpk.dll
[pathname with a string SHARE]\lpk.dll
%ProgramFiles%\Internet Explorer\Connection Wizard\lpk.dll
%ProgramFiles%\Internet Explorer\lpk.dll
%ProgramFiles%\Messenger\lpk.dll
%ProgramFiles%\MSN\MSNCoreFiles\Install\lpk.dll
%ProgramFiles%\MSN\MSNCoreFiles\Install\MSN9Components\lpk.dll
%ProgramFiles%\MSN\MSNIA\lpk.dll
%ProgramFiles%\MSN\MsnInstaller\lpk.dll
%ProgramFiles%\NetMeeting\lpk.dll
%ProgramFiles%\Outlook Express\lpk.dll
%System%\hra33.dll
56,832 bytes MD5: 0x7E0272DB9F4796C971895F300DB3ADE5
SHA-1: 0xF4C286DD9023B1C7640394282E0F92A5ADA5730A
Trojan.Win32.Patcher [Ikarus]
2 %Windir%\ccuwco.exe
[file and pathname of the sample #1]
48,640 bytes MD5: 0x806215CC12F1C57921F62DEEF7ED7ED8
SHA-1: 0x0A6A9C678592FF9F5EBC1359517B56446C29621E
W32.Virut.CF [Symantec]
Virus.Win32.Virut.ce [Kaspersky Lab]
Mal/Behav-004 [Sophos]
Trojan.Win32.Dialer [Ikarus]
Win32/Virut.E [AhnLab]
packed with UPX [Kaspersky Lab]

 

Memory Modifications

Process NameProcess FilenameMain Module Size
ccuwco.exe%Windir%\ccuwco.exe94,208 bytes
[filename of the sample #1][file and pathname of the sample #1]94,208 bytes

Module NameModule FilenameAddress Space Details
hra33.dll%System%\hra33.dllProcess name: ccuwco.exe
Process filename: %Windir%\ccuwco.exe
Address space: 0x3A0000 - 0x3B1000

Service NameDisplay NameStatusService Filename
.Net CLRMicrosoft .Net Framework COM+ Support"Running"%Windir%\ccuwco.exe

 

Registry Modifications

 

Other details

China

PortProtocolProcess
1035TCPccuwco.exe (%Windir%\ccuwco.exe)
1038TCPccuwco.exe (%Windir%\ccuwco.exe)

Remote HostPort Number
liaoxiang4088.f3322.org8080
ip.yototoo.com2017
ocyiiu.com443
88.198.69.4380

Server NameServer PortConnect as UserConnection Password
127.0.0.280127.0.0.2127.0.0.2
127.0.0.380127.0.0.3127.0.0.3
127.0.0.480127.0.0.4127.0.0.4

 

Outbound traffic (potentially malicious)

 

 

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