Submission Summary:

What's been foundSeverity Level
Produces outbound traffic.
Downloads/requests other files from Internet.
Contains characteristics of an identified security risk.

 

Technical Details:

 

Possible Security Risk

Threat CategoryDescription
A code with the rootkit-specific techniques designed to hide the software presence in the system

 

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%\hra33.dll
29,184 bytes MD5: 0x27EBED0619AC12BD1B9B58015E4DA4B2
SHA-1: 0x93B41D3522EE39FC7EC535F847A3BDF8688F858C
Rootkit.Win32.Lapka.an [Kaspersky Lab]
Trojan.Win32.Patcher [Ikarus]
2 %Windir%\ccuwco.exe
[file and pathname of the sample #1]
20,480 bytes MD5: 0x5A13611BB4CFF2A000A2FFC8256A3777
SHA-1: 0x545E5A0F1E75538F5D6A41D53DB43BA7A5DD9268
Mal/Behav-004 [Sophos]
Backdoor.Win32.Inject [Ikarus]
packed with UPX [Kaspersky Lab]

 

Memory Modifications

Process NameProcess FilenameMain Module Size
ccuwco.exe%Windir%\ccuwco.exe65,536 bytes
[filename of the sample #1][file and pathname of the sample #1]65,536 bytes

Module NameModule FilenameAddress Space Details
hra33.dll%System%\hra33.dllProcess name: ccuwco.exe
Process filename: %Windir%\ccuwco.exe
Address space: 0x3A0000 - 0x3AB000

Service NameDisplay NameStatusService Filename
Rstuvw Yabcdefg IjkRstuvw Yabcdefg Ijklmnop Rstu"Running"%Windir%\ccuwco.exe

 

Registry Modifications

 

Other details

China

PortProtocolProcess
1033TCPccuwco.exe (%Windir%\ccuwco.exe)
1035TCPccuwco.exe (%Windir%\ccuwco.exe)

Remote HostPort Number
180.255.7.116384
suxiaoqiya.top8090

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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