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 trojan horse or bot that may represent security risk for the compromised system and/or its network environment
A malicious backdoor trojan that runs in the background and allows remote access to the compromised system
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
58,368 bytes MD5: 0xB4719C414E09A4675C584D00934F2380
SHA-1: 0x828DB749EAAAC8ED8DFFB34AD9981C57BFBF3425
Backdoor.Trojan [Symantec] [Kaspersky Lab]
Mal/Nitol-C [Sophos]
DDoS:Win32/Nitol.A [Microsoft]
Trojan.Win32.MicroFake [Ikarus]
50,688 bytes MD5: 0x21F3333D7784ECCDA373E28A78909894
SHA-1: 0x482D2DE94E2A70A04BD8E79E6F00FA22191569DC
W32.Virut.U [Symantec]
Virus.Win32.Virut.q [Kaspersky Lab]
W32/Virut.gen [McAfee]
W32/Vetor-A [Sophos]
Virus:Win32/Virut.K [Microsoft]
Trojan.Win32.ServStart [Ikarus]
Win32/Virut.C [AhnLab]


Memory Modifications

Process NameProcess FilenameMain Module Size
yygeym.exe%System%\yygeym.exe86,016 bytes
[filename of the sample #1][file and pathname of the sample #1]86,016 bytes

Module NameModule FilenameAddress Space Details
hra33.dll%System%\hra33.dllProcess name: yygeym.exe
Process filename: %System%\yygeym.exe
Address space: 0x9A0000 - 0x9B2000

Service NameDisplay NameStatusService Filename
DistribueooDistribubaj Transaction Coordinator Service"Running"%System%\yygeym.exe


Registry Modifications


Other details


1033TCPyygeym.exe (%System%\yygeym.exe)

Remote HostPort Number


Outbound traffic (potentially malicious)



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