ThreatExpert Report

Submission Summary:

Submission details:

Submission received: 18 January 2008, 12:42:54
Processing time: 3 min 52 sec
Submitted sample:

File MD5: 0x35EE5C13B87759762251F8061AD24C57
File SHA-1: 0xD4A48EA363AC7CBEB8F5017A2D1F4C18FBF26F42
Filesize: 17,044 bytes

Summary of the findings:

What's been found	Severity Level
Communication with a remote IRC server.
Creates a startup registry entry.
Contains characteristics of an identified security risk.

Technical Details:

Possible Security Risk

Attention! The following threat category was identified:

Threat Category	Description
	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 file was created in the system:

#	Filename(s)	File Size	File Hash
1	[file and pathname of the sample #1] %System%\wlivemsg.exe	17,044 bytes	MD5: 0x35EE5C13B87759762251F8061AD24C57 SHA-1: 0xD4A48EA363AC7CBEB8F5017A2D1F4C18FBF26F42

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 were new processes created in the system:

Process Name	Process Filename	Main Module Size
wlivemsg.exe	%System%\wlivemsg.exe	57,344 bytes
[filename of the sample #1]	[file and pathname of the sample #1]	57,344 bytes

Registry Modifications

The newly created Registry Value is:

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

Windows Live Msgs = "wlivemsg.exe"

so that wlivemsg.exe runs every time Windows starts

Other details

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

arg1

The following ports were open in the system:

Port	Protocol	Process
1034	TCP	wlivemsg.exe (%System%\wlivemsg.exe)
1035	TCP	wlivemsg.exe (%System%\wlivemsg.exe)

The following Host Name was requested from a host database:

pool.hybridtx.com

There was registered attempt to establish connection with the remote host. The connection details are:

Remote Host	Port Number
pool.hybridtx.com	1750

Outbound traffic (potentially malicious)

Attention! There was a new connection established with a remote IRC Server. The generated outbound IRC traffic is provided below:

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