Submission Summary:

• Submission details:
• Submission received: 3 August 2012, 15:45:48
• Processing time: 9 min 13 sec
• Submitted sample:
• File MD5: 0x016926967648EBB573EC8D80F81BEDC7
• File SHA-1: 0x535EDF686C1E5B4EBBF1D7920EE6BF6DD000EA49
• Filesize: 98,304 bytes
• Alias:
• Worm.Win32.VBNA.bapd [Kaspersky Lab]
• VBObfus.da [McAfee]
• Worm:Win32/Vobfus.GF [Microsoft]
• Worm.Win32.VBNA [Ikarus]

• Summary of the findings:

What's been found	Severity Level
Modifies some system settings that may have negative impact on overall system security state.
Creates a startup registry entry.
Contains characteristics of an identified security risk.

Technical Details:

Possible Security Risk

• Attention! The following threat category was identified:

Threat Category	Description
	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	%UserProfile%\saocee.exe	98,304 bytes	MD5: 0xCFBAE92D5CA199BCFB11C560370104A3 SHA-1: 0xDB3B85DF56A114A88E2E9BB8A3DB44A3AD5D2C97	Worm.Win32.VBNA.bapd [Kaspersky Lab] VBObfus.da [McAfee] Worm:Win32/Vobfus.GF [Microsoft] Worm.Win32.VBNA [Ikarus]
2	[file and pathname of the sample #1]	98,304 bytes	MD5: 0x016926967648EBB573EC8D80F81BEDC7 SHA-1: 0x535EDF686C1E5B4EBBF1D7920EE6BF6DD000EA49	Worm.Win32.VBNA.bapd [Kaspersky Lab] VBObfus.da [McAfee] Worm:Win32/Vobfus.GF [Microsoft] Worm.Win32.VBNA [Ikarus]

• Note:
• %UserProfile% is a variable that specifies the current user's profile folder. By default, this is C:\Documents and Settings\[UserName] (Windows NT/2000/XP).

Memory Modifications

• There were new processes created in the system:

Registry Modifications

• The following Registry Keys were created:
• HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate
• HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU

• The newly created Registry Values are:
• [HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU]
• NoAutoUpdate = 0x00000001

to disable automatic Windows Updates

• [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run]
• saocee = "%UserProfile%\saocee.exe /z"
• saocee = "%UserProfile%\saocee.exe /w"

so that saocee.exe runs every time Windows starts

Other details

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

• The following port was open in the system:

• The following Host Name was requested from a host database:
• ns1.chopstickers.com

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