ThreatExpert Report: Mal/BHO-J, Trojan.Win32.BHO

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Submission Summary:

Submission details:

Submission received: 13 August 2012, 11:40:43
Processing time: 7 min 54 sec
Submitted sample:

File MD5: 0x568914C323E3F7E9288FBC72F58E71F4
File SHA-1: 0x07AF8762C3A308162582971C1BA8FCCF9015BEAE
Filesize: 264,192 bytes
Alias & packer info:

Mal/BHO-J [Sophos]
Trojan.Win32.BHO [Ikarus]
packed with: UPX [Kaspersky Lab]

Summary of the findings:

What's been found	Severity Level
Downloads/requests other files from Internet.
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 files were created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	%System%\evdat2.dmc	125 bytes	MD5: 0x7C5F5A68051F6B0C0E9A2AD33C40D415 SHA-1: 0x120865765927A61AF83F02B83DC297EEDE61EC41	(not available)
2	[file and pathname of the sample #1]	264,192 bytes	MD5: 0x568914C323E3F7E9288FBC72F58E71F4 SHA-1: 0x07AF8762C3A308162582971C1BA8FCCF9015BEAE	Mal/BHO-J [Sophos] Trojan.Win32.BHO [Ikarus] packed with UPX [Kaspersky Lab]

Note:

%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).

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

Notes:

[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: 0xAA0000 - 0xB55000
[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: 0xB10000 - 0xBC5000

Registry Modifications

The following Registry Keys were created:

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{9FE75BFA-C8CD-4410-900E-C045F64E9095}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{9FE75BFA-C8CD-4410-900E-C045F64E9095}\InprocServer32
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{9FE75BFA-C8CD-4410-900E-C045F64E9095}\ProgID
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\[filename of the sample #1 without extension].P
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\[filename of the sample #1 without extension].P\Clsid
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{9FE75BFA-C8CD-4410-900E-C045F64E9095}

The newly created Registry Values are:

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{9FE75BFA-C8CD-4410-900E-C045F64E9095}\ProgID]

(Default) = "[filename of the sample #1 without extension].P"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{9FE75BFA-C8CD-4410-900E-C045F64E9095}\InprocServer32]

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

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{9FE75BFA-C8CD-4410-900E-C045F64E9095}]

(Default) = "O"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\[filename of the sample #1 without extension].P\Clsid]

(Default) = "{9FE75BFA-C8CD-4410-900E-C045F64E9095}"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\[filename of the sample #1 without extension].P]

(Default) = "O"

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{9FE75BFA-C8CD-4410-900E-C045F64E9095}]

NoExplorer = 0x00000001

Other details

To mark the presence in the system, the following Mutex object was created:

Iexplore.XPExceptionFilter

The following Host Names were requested from a host database:

192.5.5.241
up.dom.pe.kr

The following HTTP URL was started reading:

http://up.dom.pe.kr//sql.php

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