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

 

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%\hra8.dll
36,864 bytes MD5: 0x8EBEBD0995B14939A407214C6317EEFC
SHA-1: 0xA5BA210E4B8B9B6B3DFF8734EA2F6D50C1711202
Backdoor.Trojan [Symantec]
Mal/Nitol-C [Sophos]
2 %Temp%\11a93c
%Windir%\ccuwco.exe
24,064 bytes MD5: 0x674CB7A42A6BC2FA9CBEFB013395C2DF
SHA-1: 0x353188B56586389F93B0E36F279C9EFBBB9B641C
Backdoor.Trojan [Symantec]
packed with UPX [Kaspersky Lab]

 

Memory Modifications

Process NameProcess FilenameMain Module Size
ccuwco.exe%Windir%\ccuwco.exe73,728 bytes
[filename of the sample #1][file and pathname of the sample #1]73,728 bytes

Module NameModule FilenameAddress Space Details
hra8.dll%System%\hra8.dllProcess name: ccuwco.exe
Process filename: %Windir%\ccuwco.exe
Address space: 0x380000 - 0x38E000

Service NameDisplay NameStatusService Filename
Windows Help System MyssWinHelp32 Myss"Running"%Windir%\ccuwco.exe

 

Registry Modifications

 

Other details

China

PortProtocolProcess
1033TCPccuwco.exe (%Windir%\ccuwco.exe)
1034TCPccuwco.exe (%Windir%\ccuwco.exe)

Remote HostPort Number
[???^?"?????6I?A?-??8081

 

Outbound traffic (potentially malicious)

 

 

All content ("Information") contained in this report is the copyrighted work of Threat Expert Ltd and its associated companies ("ThreatExpert") and may not be copied without the express permission of ThreatExpert.

The Information is provided on an "as is" basis. ThreatExpert disclaims all warranties, whether express or implied, to the maximum extent permitted by law, including the implied warranties that the Information is merchantable, of satisfactory quality, accurate, fit for a particular purpose or need, or non-infringing, unless such implied warranties are legally incapable of exclusion. Further, ThreatExpert does not warrant or make any representations regarding the use or the results of the use of the Information in terms of their correctness, accuracy, reliability, or otherwise.

Copyright © 2018 ThreatExpert. All rights reserved.