Submission Summary:

• Submission details:
• Submission received: 16 August 2012, 17:58:48
• Processing time: 7 min 48 sec
• Submitted sample:
• File MD5: 0x65FCB13F19EA857E49B2DABD4C90FF9E
• File SHA-1: 0xE96617E424C94DC451F6527D86AC644C17AA133A
• Filesize: 384,000 bytes
• Alias:
• TROJ_BUZUS.SMUJ [Trend Micro]
• Mal/Behav-328 [Sophos]
• Backdoor:Win32/Xtrat.B [Microsoft]
• Trojan.Win32.Buzus [Ikarus]
• Win-Trojan/Injector.384000.AS [AhnLab]

• Summary of the findings:

What's been found	Severity Level
Creates a startup registry entry.

Technical Details:

File System Modifications

• The following file was created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	%Windir%\InstallDir\Server.exe [file and pathname of the sample #1]	384,000 bytes	MD5: 0x65FCB13F19EA857E49B2DABD4C90FF9E SHA-1: 0xE96617E424C94DC451F6527D86AC644C17AA133A	TROJ_BUZUS.SMUJ [Trend Micro] Mal/Behav-328 [Sophos] Backdoor:Win32/Xtrat.B [Microsoft] Trojan.Win32.Buzus [Ikarus] Win-Trojan/Injector.384000.AS [AhnLab]

• Note:
• %Windir% is a variable that refers to the Windows installation folder. By default, this is C:\Windows or C:\Winnt.

• The following directory was created:
• %Windir%\InstallDir

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]	417,792 bytes
server.exe	%Windir%\installdir\server.exe	417,792 bytes

• There was a new memory page created in the address space of the system process(es):

Process Name	Process Filename	Allocated Size
svchost.exe	%System%\svchost.exe	3,260,416 bytes

• Notes:
• %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).

Registry Modifications

• The following Registry Key was created:
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}

• The newly created Registry Values are:
• [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}]
• StubPath = "%Windir%\InstallDir\Server.exe restart"

so that Server.exe runs every time Windows starts

• [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
• HKLM = "%Windir%\InstallDir\Server.exe"

so that Server.exe runs every time Windows starts

• [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run]
• HKCU = "%Windir%\InstallDir\Server.exe"

so that Server.exe runs every time Windows starts

Other details

• To mark the presence in the system, the following Mutex objects were created:
• --((Mutex))--
• XTREMEPERSIST

• There was application-defined hook procedure installed into the hook chain (e.g. to monitor keystrokes). The installed hook is handled by the following module:
• %ProgramFiles%\Internet Explorer\iexplore.exe

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