BKDR_FARFLI.SMM

This backdoor arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Arrival Details

This backdoor arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Installation

This backdoor creates the following folders:

• %Program Files%\Microsoft Explorer

(Note: %Program Files% is the default Program Files folder, usually C:\Program Files in Windows 2000, Server 2003, and XP (32-bit), Vista (32-bit), and 7 (32-bit), or C:\Program Files (x86) in Windows XP (64-bit), Vista (64-bit), and 7 (64-bit).)

Other System Modifications

This backdoor deletes the following files:

• %Temp%\Oath.ini

(Note: %Temp% is the Windows Temporary folder, which is usually C:\Windows\Temp.)

It adds the following registry entries:

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\Microsodfft .Net Framdfsdork COM+ Supportfs
FailureActions = "{random values}"

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\Microsodfft .Net Framdfsdork COM+ Supportfs
Description = "Midfsssoft .NET and Windfows XP COM+ Integrafstion with SOAP"

Dropping Routine

This backdoor drops the following files:

• %Temp%\Oath.exe
• %Program Files%\Microsoft Explorer\svmssc.exe
• %System Root%\SystemTemp

(Note: %Temp% is the Windows Temporary folder, which is usually C:\Windows\Temp.. %Program Files% is the default Program Files folder, usually C:\Program Files in Windows 2000, Server 2003, and XP (32-bit), Vista (32-bit), and 7 (32-bit), or C:\Program Files (x86) in Windows XP (64-bit), Vista (64-bit), and 7 (64-bit).. %System Root% is the root folder, which is usually C:\. It is also where the operating system is located.)

This report is generated via an automated analysis system.