Submission Summary:

What's been foundSeverity Level
Produces outbound traffic.
Contains characteristics of an identified security risk.

 

Technical Details:

 

Possible Security Risk

Threat CategoryDescription
A malicious backdoor trojan that runs in the background and allows remote access to the compromised system
A program that downloads files to the local computer that may represent security risk

 

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
%System%\gei33.dll
33,792 bytes MD5: 0xD22C9436696F129B086ACB5A986B47B7
SHA-1: 0xF60108AC919B150AD12961BD864164EB25C1B7B5
Backdoor.Trojan [Symantec]
Mal/Nitol-C [Sophos]
2 %Temp%\SOFTWARE.LOG
%System%\ccuwco.exe
20,992 bytes MD5: 0x3391157D3104C494067E3B0A513AE9E0
SHA-1: 0x5F816069DDB8A10B33B11F3EC4425E8D041462F5
Downloader [Symantec]
packed with UPX [Kaspersky Lab]

 

Memory Modifications

Process NameProcess FilenameMain Module Size
ccuwco.exe%System%\ccuwco.exe98,304 bytes
[filename of the sample #1][file and pathname of the sample #1]98,304 bytes

Module NameModule FilenameAddress Space Details
gei33.dll%System%\gei33.dllProcess name: ccuwco.exe
Process filename: %System%\ccuwco.exe
Address space: 0x3E0000 - 0x3ED000

Service NameDisplay NameStatusService Filename
aspnet_statesqlcASP.NET State Servicesdce Transaction Coordinator Service"Running"%System%\ccuwco.exe

 

Registry Modifications

 

Other details

China

PortProtocolProcess
1033TCPccuwco.exe (%System%\ccuwco.exe)
1034TCPccuwco.exe (%System%\ccuwco.exe)
1035TCPccuwco.exe (%System%\ccuwco.exe)

Remote HostPort Number
103.82.53.669876
rat2.100geili.com8000
rat3.100geili.com9000

 

Outbound traffic (potentially malicious)

 

 

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