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
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
%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
59,904 bytes MD5: 0x3DD2699763ADEF8836740370F57CCB3B
SHA-1: 0x11E973DE35F30C2C7292C9C158E553A67695EB46
Rootkit.Win32.Lapka.an [Kaspersky Lab]
Trojan.Win32.Patcher [Ikarus]
2 %Windir%\ccuwco.exe
[file and pathname of the sample #1]
51,200 bytes MD5: 0x500D1AC407764D2169A31A688A638242
SHA-1: 0x5EDE4BB075FB03569EEA7D95C37C139886157CC0
W32.Virut.CF [Symantec]
Virus.Win32.Virut.ce [Kaspersky Lab]
W32/Virut.n.gen [McAfee]
W32/Scribble-B [Sophos]
Virus:Win32/Virut.BN [Microsoft]
Trojan-Downloader.Win32.Small [Ikarus]

 

Memory Modifications

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

Module NameModule FilenameAddress Space Details
hra33.dll%System%\hra33.dllProcess name: ccuwco.exe
Process filename: %Windir%\ccuwco.exe
Address space: 0x3A0000 - 0x3B2000

Service NameDisplay NameStatusService Filename
Deoihi Klmnopqr TudvfDesa Klmnopqr Tudvwxyab Defg"Running"%Windir%\ccuwco.exe

 

Registry Modifications

 

Other details

China

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

Remote HostPort Number
119.23.219.2458080
180.255.25.116384
ccosattack.top7890
ovjycx.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)

 

 

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 © 2017 ThreatExpert. All rights reserved.