Submission Summary:

• Submission details:
• Submission received: 10 April 2008, 15:56:58
• Processing time: 3 min 40 sec
• Submitted sample:
• File MD5: 0x7F55D224F606CC38A559E715B682DC2C
• File SHA-1: 0xD269DBE92103F3223DB3D699E624916872F97FAB
• Filesize: 132,609 bytes
• Alias:
• Trojan.Peacomm [Symantec]
• WORM_ZHELATI.LQ [Trend Micro]

• Summary of the findings:

What's been found	Severity Level
Threat characteristics of the Storm worm (aka CME-711/Peacomm/Nuwar/Zhelatin/Tibs). This threat is normally received as an email attachment; it may consist of a rootkit, a peer-to-peer client, and a mass-mailing worm component. To bypass firewalls, its code may be injected and run from the legitimate services.exe process.
Backdoor functionality: connected remote users are able to perform multiple actions on the compromised system.
Creates a startup registry entry.
Contains characteristics of an identified security risk.

Technical Details:

Possible Security Risk

• Attention! The following threat categories were identified:

Threat Category	Description
	A malicious backdoor trojan that runs in the background and allows remote access to the compromised system
	A network-aware worm that attempts to replicate across the existing network(s)
	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)	File Size	File Hash	Alias
1	%Windir%\kavir.exe [file and pathname of the sample #1]	132,609 bytes	MD5: 0x7F55D224F606CC38A559E715B682DC2C SHA-1: 0xD269DBE92103F3223DB3D699E624916872F97FAB	Trojan.Peacomm [Symantec] WORM_ZHELATI.LQ [Trend Micro]
2	%Windir%\nivavir.config	43,700 bytes	MD5: 0xDCAE3830E533602E6859909F7F3D2C8F SHA-1: 0xC5D0574A7F7148447062DC7A1F5A5AA764E8D8B3	(not available)

• Note:
• %Windir% is a variable that refers to the Windows installation folder. By default, this is C:\Windows or C:\Winnt.

Memory Modifications

• There were new processes created in the system:

Process Name	Process Filename	Main Module Size
kavir.exe	%Windir%\kavir.exe	139,264 bytes
[filename of the sample #1]	[file and pathname of the sample #1]	139,264 bytes

Registry Modifications

• The newly created Registry Value is:
• [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run]
• kavir = "%Windir%\kavir.exe"

so that kavir.exe runs every time Windows starts

Other details

• The following port was open in the system:

Heuristics Analysis

• Heuristically identified details of the peer-to-peer botnet that could be used to download the latest instructions: