Submission Summary:

• Submission details:
• Submission received: 23 September 2012, 13:14:45
• Processing time: 9 min 14 sec
• Submitted sample:
• File MD5: 0x530E40BF3918D68881F4AF015002D709
• File SHA-1: 0x1DC141C213F9415C64120934C75521B1BBAF7B8A
• Filesize: 212,992 bytes
• Alias:
• Mal/Behav-046 [Sophos]
• Backdoor:Win32/Zegost.B!dll [Microsoft]

• Summary of the findings:

What's been found	Severity Level
Capability to modify the hosts file that may potentially block access to security-related Web sites.
Produces outbound traffic.
Contains characteristics of an identified security risk.

Technical Details:

Possible Security Risk

• Attention! The following threat categories were identified:

Threat Category	Description
	A malicious trojan horse or bot that may represent security risk for the compromised system and/or its network environment
	A keylogger program that can capture all user keystrokes (including confidential details such username, password, credit card number, etc.)
	A malicious backdoor trojan that runs in the background and allows remote access to the compromised system

File System Modifications

• The following files were created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	[file and pathname of the sample #1] %Windir%\Temp\bj.exe	212,992 bytes	MD5: 0x530E40BF3918D68881F4AF015002D709 SHA-1: 0x1DC141C213F9415C64120934C75521B1BBAF7B8A	Mal/Behav-046 [Sophos] Backdoor:Win32/Zegost.B!dll [Microsoft]
2	%System%\yjsoft.ini	155,655 bytes	MD5: 0xB701A78A324A5139C6015061A853B990 SHA-1: 0x8465CC4C24940D3DD977AEEA1171DAD2507C03E2	Backdoor.Trojan [Symantec] Trojan-PSW.Win32.Bjlog.rtl [Kaspersky Lab] BackDoor-TW.dll [McAfee] Mal/Zegost-E [Sophos] Backdoor:Win32/Zegost.B!dll [Microsoft] Backdoor.Win32.Zegost [Ikarus]

• Notes:
• %Windir% is a variable that refers to the Windows installation folder. By default, this is C:\Windows or C:\Winnt.
• %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
[filename of the sample #1]	[file and pathname of the sample #1]	212,992 bytes
Fuck.exe	C:\Fuck.exe	16,384 bytes
bj.exe	%Windir%\temp\bj.exe	212,992 bytes

• The following module was loaded into the address space of other process(es):

Registry Modifications

• The following Registry Keys were created:
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Com70
• HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\MediaResources\msvideo
• HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\MediaResources\msvideo

Other details

• Analysis of the file resources indicate the following possible country of origin:

	China

• To mark the presence in the system, the following Mutex object was created:
• Global\b16777343_9308j

• The following port was open in the system:

• The following Host Name was requested from a host database:
• andongni.myvnc.com

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

Outbound traffic (potentially malicious)

• There was an outbound traffic produced on port 9308: