ThreatExpert Report: Troj/Virtum-Gen

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Submission Summary:

Submission details:

Submission received: 10 November 2009, 13:30:44
Processing time: 5 min 36 sec
Submitted sample:

File MD5: 0xB10149C95D3DDA93BAE6ACD8DDAB0E91
File SHA-1: 0x642DCB48ED227544101B2FDB252B783BCCD30C15
Filesize: 89,088 bytes
Alias & packer info:

Troj/Virtum-Gen [Sophos]
packed with: PE_Patch [Kaspersky Lab]

Summary of the findings:

What's been found	Severity Level
Creates a startup registry entry.
Registers a 32-bit in-process server DLL.

Technical Details:

File System Modifications

The following file was created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	[file and pathname of the sample #1]	89,088 bytes	MD5: 0xB10149C95D3DDA93BAE6ACD8DDAB0E91 SHA-1: 0x642DCB48ED227544101B2FDB252B783BCCD30C15	Troj/Virtum-Gen [Sophos] packed with PE_Patch [Kaspersky Lab]

Memory Modifications

There was a new process created in the system:

Process Name	Process Filename	Main Module Size
[generic host process]	[generic host process filename]	20,480 bytes

Note:

[generic host process filename] is a full path filename of [generic host process].

There were new memory pages created in the address space of the system process(es):

Process Name	Process Filename	Allocated Size
explorer.exe	%Windir%\explorer.exe	20,480 bytes
IEXPLORE.EXE	%ProgramFiles%\internet explorer\iexplore.exe	20,480 bytes

Notes:

%Windir% is a variable that refers to the Windows installation folder. By default, this is C:\Windows or C:\Winnt.
%ProgramFiles% is a variable that refers to the Program Files folder. A typical path is C:\Program Files.

The following modules were loaded into the address space of other process(es):

Module Name	Module Filename	Address Space Details
[filename of the sample #1]	[file and pathname of the sample #1]	Process name: explorer.exe Process filename: %Windir%\explorer.exe Address space: 0x1E80000 - 0x1EA5000
[filename of the sample #1]	[file and pathname of the sample #1]	Process name: dllhost.exe Process filename: %System%\dllhost.exe Address space: 0x10000000 - 0x10025000
[filename of the sample #1]	[file and pathname of the sample #1]	Process name: sdnsmain.exe Process filename: %Windir%\dns\sdnsmain.exe Address space: 0x1620000 - 0x1645000
[filename of the sample #1]	[file and pathname of the sample #1]	Process name: [generic host process] Process filename: [generic host process filename] Address space: 0x10000000 - 0x10025000
[filename of the sample #1]	[file and pathname of the sample #1]	Process name: IEXPLORE.EXE Process filename: %ProgramFiles%\internet explorer\iexplore.exe Address space: 0x10000000 - 0x10025000
[filename of the sample #1]	[file and pathname of the sample #1]	Process name: VMwareUser.exe Process filename: %ProgramFiles%\vmware\vmware tools\vmwareuser.exe Address space: 0x10000000 - 0x10025000

Notes:

%System% is a variable that refers to the System folder. By default, this is C:\Windows\System (Windows 95/98/Me), C:\Winnt\System32 (Windows NT/2000), or C:\Windows\System32 (Windows XP).

Registry Modifications

The following Registry Keys were created:

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{2aa6ee75-236d-494f-88c9-54fa8019980b}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{2aa6ee75-236d-494f-88c9-54fa8019980b}\InprocServer32

The newly created Registry Values are:

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{2aa6ee75-236d-494f-88c9-54fa8019980b}\InprocServer32]

(Default) = "[file and pathname of the sample #1]"
ThreadingModel = "Both"

[[pathname with a string SHARE]\SharedTaskScheduler]

{2aa6ee75-236d-494f-88c9-54fa8019980b} = "jugezatag"

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]

mizehadik = "Rundll32.exe "[file and pathname of the sample #1]",a"

so that [file and pathname of the sample #1] runs every time Windows starts

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad]

goweyaheb = "{2aa6ee75-236d-494f-88c9-54fa8019980b}"

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows]

LoadAppInit_DLLs = 0x00000001

The following Registry Value was modified:

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows]

AppInit_DLLs =

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