ThreatExpert Report: Trojan.BHO

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Submission Summary:

Submission details:

Submission received: 3 July 2009, 05:40:59
Processing time: 6 min 54 sec
Submitted sample:

File MD5: 0x72A193A54283451B7CF1EC745CE33D84
File SHA-1: 0x282A082D929A2DB097119918FDC0DD554FAD0E82
Filesize: 220,672 bytes
Alias & packer info:

Trojan.BHO [Ikarus]
packed with: PE_Patch.UPX [Kaspersky Lab]

Summary of the findings:

What's been found	Severity Level
Registers a 32-bit in-process server DLL.
Registers a Browser Helper Object (Microsoft's Internet Explorer plugin module).

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]	220,672 bytes	MD5: 0x72A193A54283451B7CF1EC745CE33D84 SHA-1: 0x282A082D929A2DB097119918FDC0DD554FAD0E82	Trojan.BHO [Ikarus] packed with PE_Patch.UPX [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].

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: [generic host process] Process filename: [generic host process filename] Address space: 0x870000 - 0x908000
[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: 0xD70000 - 0xE08000

Notes:

%ProgramFiles% is a variable that refers to the Program Files folder. A typical path is C:\Program Files.

Registry Modifications

The following Registry Keys were created:

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{25469879-7856-4D09-83C1-15D563C19D71}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{25469879-7856-4D09-83C1-15D563C19D71}\InprocServer32
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{25469879-7856-4D09-83C1-15D563C19D71}

The newly created Registry Values are:

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{25469879-7856-4D09-83C1-15D563C19D71}\InprocServer32]

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

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{25469879-7856-4D09-83C1-15D563C19D71}]

(Default) = ""

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