Submission Summary:

• Submission details:
• Submission received: 30 September 2012, 07:08:36
• Processing time: 9 min 59 sec
• Submitted sample:
• File MD5: 0x71664F4B6DCD5E3469F677405DC5F5BC
• File SHA-1: 0x7FFB8780C3BB70191C8A8A8868C985CD6EB1993B
• Filesize: 79,360 bytes
• Alias:
• Trojan.Win32.Cosmu.accz [Kaspersky Lab]
• W32/GeorgEx-Fam [Sophos]
• Worm:Win32/Cosmu.B [Microsoft]
• Trojan.Win32.Cosmu [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).
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 files were created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	%Programs%\Startup\georgia.jpg.exe %System%\msiregnv.exe [file and pathname of the sample #1]	79,360 bytes	MD5: 0x71664F4B6DCD5E3469F677405DC5F5BC SHA-1: 0x7FFB8780C3BB70191C8A8A8868C985CD6EB1993B	Trojan.Win32.Cosmu.accz [Kaspersky Lab] W32/GeorgEx-Fam [Sophos] Worm:Win32/Cosmu.B [Microsoft] Trojan.Win32.Cosmu [Ikarus]
2	%System%\upl.txt	156 bytes	MD5: 0xC796846C19541D31045E810B671184AB SHA-1: 0x8C4F9790F1828A2F109F86BBB452AF96A555B2F8	(not available)

• Notes:
• %Programs% is a variable that refers to the file system directory that contains the user's program groups. A typical path is C:\Documents and Settings\[UserName]\Start Menu\Programs.
• %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:

Registry Modifications

• The following Registry Keys were created:
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\ESENT\Process\ipconfig
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\ESENT\Process\ipconfig\DEBUG

• The newly created Registry Value is:
• [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\ESENT\Process\ipconfig\DEBUG]
• Trace Level = ""

Other details

• To mark the presence in the system, the following Mutex object was created:
• agvisto2010l