Submission Summary:

• Submission details:
• Submission received: 23 November 2008, 06:46:29
• Processing time: 6 min 20 sec
• Submitted sample:
• File MD5: 0xAB4C491DCBC3900F446D3802197BD9B0
• File SHA-1: 0x6A6AAA86FC87276300F0461AD9EC26F5DE603619
• Filesize: 84,480 bytes
• Alias & packer info:
• Worm.RBot.Gen.16 [PCTools]
• Backdoor.Win32.Rbot.gen [Kaspersky Lab]
• Backdoor.Win32.Haxdoor [Ikarus]
• packed with: PE_Patch.UPX [Kaspersky Lab]

• Summary of the findings:

What's been found	Severity Level
A network-aware worm that uses known exploit(s) in order to replicate across vulnerable networks.
Bugtraq ID 9213: DameWare Mini Remote Control Server Pre-Authentication Buffer Overflow Vulnerability.
MS04-012: DCOM RPC Overflow exploit - replication across TCP 135/139/445/593 (common for Blaster, Welchia, Spybot, Randex, other IRC Bots).
Capability to perform DoS attacks against other computers.
Replication across networks by exploiting weakly restricted shares (common for Randex family of worms).
Communication with a remote IRC server.
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
Adware.Component.Unrelated	These common components have files and keys that are in different threats but the threats are not related to one another in that the author of the signature is not the same. It is recommended that all these entries be removed.

• Attention! The following threat categories were identified:

Threat Category	Description
	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
	A malicious backdoor trojan that runs in the background and allows remote access to the compromised system

File System Modifications

• The following file was created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	[file and pathname of the sample #1] %System%\system.exe	84,480 bytes	MD5: 0xAB4C491DCBC3900F446D3802197BD9B0 SHA-1: 0x6A6AAA86FC87276300F0461AD9EC26F5DE603619	Worm.RBot.Gen.16 [PCTools] Backdoor.Win32.Rbot.gen [Kaspersky Lab] Backdoor.Win32.Haxdoor [Ikarus] packed with PE_Patch.UPX [Kaspersky Lab]

• 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
system.exe	%System%\system.exe	401,408 bytes
[filename of the sample #1]	[file and pathname of the sample #1]	401,408 bytes

Registry Modifications

• The following Registry Key was created:
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices

• The newly created Registry Values are:
• [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
• Microsoft Update = "system.exe"

so that system.exe runs every time Windows starts

• [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices]
• Microsoft Update = "system.exe"

so that system.exe runs every time Windows starts

• [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run]
• Microsoft Update = "system.exe"

so that system.exe runs every time Windows starts

Other details

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

• The following ports were open in the system:

• The following Host Name was requested from a host database:
• hell.dick.hellmaker.info

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

Outbound traffic (potentially malicious)

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

Heuristics Analysis

• Heuristically identified capability of spreading across the following weakly restricted network shares:

• The network replication uses a dictionary attack by probing credentials from the following list: