Submission Summary:

• Submission details:
• Submission received: 14 May 2008, 13:36:22
• Processing time: 4 min 23 sec
• Submitted sample:
• File MD5: 0xD0E7014814FC19039DF444FCE8BBED38
• File SHA-1: 0x44400105411BADF71A0DE54EFE610432994CFAF8
• Filesize: 129,024 bytes
• Alias:
• Generic Packed [McAfee]
• TROJ_CNTR.W [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.
Capability to send out email message(s) with the built-in SMTP client engine.
Searching for email addresses by enumerating files with the certain extensions. This functionality is used by mass-mailers and spam-bots.
Backdoor functionality: connected remote users are able to perform multiple actions on the compromised system.
Downloads/requests other files from Internet.
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)

File System Modifications

• The following files were created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	%Windir%\gogora.config	44,057 bytes	MD5: 0x5905C1045A0C47B91BF44BF3CE9E3C3F SHA-1: 0x55A669561448F411E07BE6D8DA915881C9B43DE6	(not available)
2	%Windir%\libor.exe [file and pathname of the sample #1]	129,024 bytes	MD5: 0xD0E7014814FC19039DF444FCE8BBED38 SHA-1: 0x44400105411BADF71A0DE54EFE610432994CFAF8	Generic Packed [McAfee] TROJ_CNTR.W [Trend Micro]

• 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
libor.exe	%Windir%\libor.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 Values are:
• [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\ITStorage\Finders]
• ID = 0x431501E7
• [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run]
• libor = "%Windir%\libor.exe"

so that libor.exe runs every time Windows starts

Other details

• The following ports were open in the system:

• The following Internet Connection was established:

Heuristics Analysis

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