Submission Summary:

• Submission details:
• Submission received: 25 October 2012, 06:41:08
• Processing time: 8 min 56 sec
• Submitted sample:
• File MD5: 0xD5A89AC48414BCB4DAD8B5B058EAF83C
• File SHA-1: 0x394FB18E0E2259454E327530D1B9ACA414B7A23B
• Filesize: 143,360 bytes
• Alias:
• Trojan.Gen [Symantec]
• Trojan.Win32.VBKrypt.mbpe [Kaspersky Lab]
• Bot-FCU!D5A89AC48414 [McAfee]
• Mal/Generic-L [Sophos]
• Trojan-Dropper.Win32.VB [Ikarus]

• Summary of the findings:

What's been found	Severity Level
Communication with a remote IRC server.
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 malicious trojan horse or bot that may represent security risk for the compromised system and/or its network environment

File System Modifications

• The following file was created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	%AppData%\Scxaxs.exe [file and pathname of the sample #1]	143,360 bytes	MD5: 0xD5A89AC48414BCB4DAD8B5B058EAF83C SHA-1: 0x394FB18E0E2259454E327530D1B9ACA414B7A23B	Trojan.Gen [Symantec] Trojan.Win32.VBKrypt.mbpe [Kaspersky Lab] Bot-FCU!D5A89AC48414 [McAfee] Mal/Generic-L [Sophos] Trojan-Dropper.Win32.VB [Ikarus]

• Note:
• %AppData% is a variable that refers to the file system directory that serves as a common repository for application-specific data. A typical path is C:\Documents and Settings\[UserName]\Application Data.

Memory Modifications

• There were new memory pages created in the address space of the system process(es):

Process Name	Process Filename	Allocated Size
services.exe	%System%\services.exe	319,488 bytes
svchost.exe	%System%\svchost.exe	319,488 bytes
svchost.exe	%System%\svchost.exe	319,488 bytes
svchost.exe	%System%\svchost.exe	319,488 bytes
svchost.exe	%System%\svchost.exe	319,488 bytes
svchost.exe	%System%\svchost.exe	319,488 bytes
alg.exe	%System%\alg.exe	319,488 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 newly created Registry Value is:
• [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run]
• Scxaxs = "%AppData%\Scxaxs.exe"

so that Scxaxs.exe runs every time Windows starts

Other details

• To mark the presence in the system, the following Mutex object was created:
• e621ca05-Mutex