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 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
%System%\hra33.dll
109,056 bytes MD5: 0x9C5892315A3508885261847EF8639613
SHA-1: 0x4A52E6C23036BE2B1A1A86AFF6B12798F6BD8346
Trojan.Win32.Patcher [Ikarus]
2 %Windir%\rebfec.exe
[file and pathname of the sample #1]
100,864 bytes MD5: 0x5C7D3C72BA94F09FB6C5622E6EE6CE37
SHA-1: 0x396D1AFD554D64121EA2BDB42101855B0515F8D4
W32.Sality.AE [Symantec]
Virus.Win32.Sality.gen [Kaspersky Lab]
W32/Sality.gen.z [McAfee]
Mal/Sality-D [Sophos]
Virus:Win32/Sality.AT [Microsoft]
Trojan.Win32.Dialer [Ikarus]
Win32/Kashu.E [AhnLab]

 

Memory Modifications

Process NameProcess FilenameMain Module Size
rebfec.exe%Windir%\rebfec.exe143,360 bytes
[filename of the sample #1][file and pathname of the sample #1]143,360 bytes

Module NameModule FilenameAddress Space Details
hra33.dll%System%\hra33.dllProcess name: rebfec.exe
Process filename: %Windir%\rebfec.exe
Address space: 0x3E0000 - 0x3FE000

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

 

Registry Modifications

 

Other details

China

PortProtocolProcess
1033TCPrebfec.exe (%Windir%\rebfec.exe)
1035TCPrebfec.exe (%Windir%\rebfec.exe)

Remote HostPort Number
42.159.196.2438080
ip.yototoo.com2017

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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