Submission Summary:

• Submission details:
• Submission received: 3 October 2012, 17:12:53
• Processing time: 7 min 43 sec
• Submitted sample:
• File MD5: 0xBCA622258BA632F5510C5BCE2E365056
• File SHA-1: 0x5314CD291F12FDD037A251697A963D8BE50E9DF5
• Filesize: 78,848 bytes
• Alias:
• Mal/IRCBot-C [Sophos]
• Backdoor:Win32/Gaertob.A [Microsoft]
• Virus.Win32.SdBot.4556 [Ikarus]

• 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.
MS04-011: LSASS Overflow exploit - replication across TCP 445 (common for Sasser, Bobax, Kibuv, Korgo, Gaobot, Spybot, Randex, other IRC Bots).
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 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

File System Modifications

• The following file was created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	%ProgramFiles%\Common Files\System\svhost.exe [file and pathname of the sample #1]	78,848 bytes	MD5: 0xBCA622258BA632F5510C5BCE2E365056 SHA-1: 0x5314CD291F12FDD037A251697A963D8BE50E9DF5	Mal/IRCBot-C [Sophos] Backdoor:Win32/Gaertob.A [Microsoft] Virus.Win32.SdBot.4556 [Ikarus]

• Note:
• %ProgramFiles% is a variable that refers to the Program Files folder. A typical path is C:\Program Files.

Memory Modifications

• There were new processes created in the system:

Process Name	Process Filename	Main Module Size
[filename of the sample #1]	[file and pathname of the sample #1]	102,400 bytes
svhost.exe	%ProgramFiles%\Common Files\System\svhost.exe	102,400 bytes

Registry Modifications

• The newly created Registry Value is:
• [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
• Windows Update = "%ProgramFiles%\Common Files\System\svhost.exe"

so that svhost.exe runs every time Windows starts

Other details

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

• The following Host Names were requested from a host database:
• 192.5.5.241
• 50.7.239.180

• 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: