Submission Summary:

• Submission details:
• Submission received: 8 January 2009, 16:38:09
• Processing time: 6 min 21 sec
• Submitted sample:
• File MD5: 0xAA8546B79067268B46C247AC74DD8ECD
• File SHA-1: 0x9BEAC72D103D3299A49A13372676E804C30D11E5
• Filesize: 28,672 bytes
• Alias:
• Trojan.Small!sd6 [PCTools]
• Trojan.Pandex [Symantec]
• Trojan.Win32.Small.yds [Kaspersky Lab]
• Spy-Agent.bv.dldr [McAfee]
• Troj/Dloadr-BVM [Sophos]
• TrojanDownloader:Win32/Cutwail.AB [Microsoft]
• Trojan.Win32.Small [Ikarus]

• Summary of the findings:

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

Technical Details:

Possible Security Risk

• Attention! Characteristics of the following security risks were identified in the system:

Security Risk	Description
Trojan.Small!sd6	Trojan.Small!sd6 is a malicious program that does not infect other files but may represents security risk for your computer and/or network environment.
Trojan-Downloader.Agent.BWH	Trojan-Downloader.Agent.BWH contacts a remote server in its attempt to secretly download additional threats onto affected machines.

• 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	Alias
1	%System%\rs32net.exe [file and pathname of the sample #1]	28,672 bytes	MD5: 0xAA8546B79067268B46C247AC74DD8ECD SHA-1: 0x9BEAC72D103D3299A49A13372676E804C30D11E5	Trojan.Small!sd6 [PCTools] Trojan.Pandex [Symantec] Trojan.Win32.Small.yds [Kaspersky Lab] Spy-Agent.bv.dldr [McAfee] Troj/Dloadr-BVM [Sophos] TrojanDownloader:Win32/Cutwail.AB [Microsoft] Trojan.Win32.Small [Ikarus]

• 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
rs32net.exe	%System%\rs32net.exe	200,704 bytes
[filename of the sample #1]	[file and pathname of the sample #1]	200,704 bytes

Registry Modifications

• The newly created Registry Value is:
• [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
• rs32net = "%System%\rs32net.exe"

so that rs32net.exe runs every time Windows starts

Other details

• There were registered attempts to establish connection with the remote hosts. The connection details are: