Submission Summary:

• Submission details:
• Submission received: 4 August 2012, 03:44:08
• Processing time: 10 min 18 sec
• Submitted sample:
• File MD5: 0xC971CA1B6C493F3B18DA2346ABEC01BE
• File SHA-1: 0xF2993342F05A914CCE0E3BD688FCFE649058C898
• Filesize: 90,112 bytes
• Alias:
• Worm.Win32.VBNA.baoe [Kaspersky Lab]
• Worm:Win32/Vobfus.GC [Microsoft]
• Virus.Win32.Cryptor [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%\ceimu.exe	90,112 bytes	MD5: 0x9C2CDFD9DFADDF5E793D488613C0B0FC SHA-1: 0x3A94192C939D9DA9372298B47C50C24EF579554E	Worm.Win32.VBNA.baoe [Kaspersky Lab] Worm:Win32/Vobfus.GC [Microsoft] Virus.Win32.Cryptor [Ikarus]
2	[file and pathname of the sample #1]	90,112 bytes	MD5: 0xC971CA1B6C493F3B18DA2346ABEC01BE SHA-1: 0xF2993342F05A914CCE0E3BD688FCFE649058C898	Worm.Win32.VBNA.baoe [Kaspersky Lab] Worm:Win32/Vobfus.GC [Microsoft] Virus.Win32.Cryptor [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]
• ceimu = "%UserProfile%\ceimu.exe /q"
• ceimu = "%UserProfile%\ceimu.exe /h"

so that ceimu.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.timecheckings.com

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