Threat Expert Report

Submission Summary:

Submission details:

Submission received: 7 August 2007, 11:15:21
Processing time: 3 min 29 sec
Submitted sample:

File MD5: 0x43A25EBA0062C6B7FA416D0B4C3DE543
Filesize: 710,599 bytes
Alias: Trojan-Downloader.VB!sd5 [PCTools], Trojan-Downloader.Win32.VB.pi [Kaspersky Lab], Trojan Horse [Symantec], TROJ_Generic [Trend Micro]

Summary of the findings:

What's been found	Severity Level
Downloads/requests other files from Internet.
Creates a startup registry entry.
Contains characteristics of an identified security risk.

Technical Details:

Possible Security Risk

Attention! Characteristics of the following security risk was identified in the system:

Security Risk	Description
Trojan-Downloader.VB!sd5	Trojan-Downloader.VB!sd5 attempts to download malicious files to the local computer and execute them.

Attention! The following threat categories were identified:

Threat Category	Description
	A program that downloads files to the local computer that may represent security risk
	A malicious trojan horse or bot that may represent security risk for the compromised system and/or its network environment

File System Modifications

The following files were created in the system:

#	Filename(s)	Filename Size	Filename MD5	Alias
1	%ProgramFiles%\iSOad\msdll.exe	32,768 bytes	0xBD7FEB9E1155F5DBA91EA6576ABEE13A	Trojan-Downloader.VB!sd5 [PCTools] Trojan-Downloader.Win32.VB.pi [Kaspersky Lab] Trojan Horse [Symantec] Generic Downloader.s [McAfee] TROJ_VB.UF [Trend Micro]
2	%ProgramFiles%\iSOad\msvbvm60.dll	1,392,671 bytes	0xE949EEE7D1BE07E32267FE10D9992C38	(not available)
3	%ProgramFiles%\iSOad\utimer.ctl	7,935 bytes	0x4431AB2B14B1D25A462AB5872672395C	(not available)
4	[file and pathname of the sample #1]	710,599 bytes	0x43A25EBA0062C6B7FA416D0B4C3DE543	Trojan-Downloader.VB!sd5 [PCTools] Trojan-Downloader.Win32.VB.pi [Kaspersky Lab] Trojan Horse [Symantec] TROJ_Generic [Trend Micro]

Note:

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

The following directory was created:

%ProgramFiles%\iSOad

Memory Modifications

There were new processes created in the system:

Process Name	Process Filename	Main Module Size
msdll.exe	%ProgramFiles%\isoad\msdll.exe	36,864 bytes
[filename of the sample #1]	[file and pathname of the sample #1]	131,072 bytes

The following module was loaded into the address space of other process(es):

Module Name	Module Filename	Address Space Details
MSVBVM60.DLL	%ProgramFiles%\iSOad\MSVBVM60.DLL	Process name: msdll.exe Process filename: %ProgramFiles%\isoad\msdll.exe Address space: 0x73420000 - 0x73574000

Registry Modifications

The following Registry Key was created:

HKEY_CURRENT_USER\Software\WinRAR SFX

The newly created Registry Values are:

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

angeleyes = "%ProgramFiles%\iSOad\msdll.exe"

so that msdll.exe runs every time Windows starts

[HKEY_CURRENT_USER\Software\WinRAR SFX]

C%%Program Files%iSOad = "%ProgramFiles%\iSOad"

The following Registry Value was modified:

[HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main]

Window_Placement = 2C 00 00 00 00 00 00 00 01 00 00 00 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF 7C 00 00 00 00 00 00 00 5C 02 00 00 3A 01 00 00

Other details

Analysis of the file resources indicate the following possible country of origin:

Russian Federation

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

angeleyes

The following Internet Connection was established:

Server Name	Server Port	Connect as User	Connection Password
rpm.codenamenetwork.com	80	(null)	(null)

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