BKDR_HOSTIL.D

This backdoor arrives as attachment to mass-mailed email messages. It arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

It executes then deletes itself afterward.

As of this writing, the said sites are inaccessible.

Arrival Details

This backdoor arrives as attachment to mass-mailed email messages.

It 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 executes then deletes itself afterward.

Download Routine

This backdoor accesses the following websites to download files:

• http://{BLOCKED}.{BLOCKED}.121.33/lol2.exe
• http://{BLOCKED}.{BLOCKED}.121.33/pod.exe
• http://{BLOCKED}.{BLOCKED}.121.33/spm.exe
• http://{BLOCKED}.{BLOCKED}.35.159/lol2.exe
• http://{BLOCKED}.{BLOCKED}.35.159/pod.exe
• http://{BLOCKED}.{BLOCKED}.35.159/spm.exe

It saves the files it downloads using the following names:

• %User Temp%\lol2.exe
• %User Temp%\pod.exe
• %User Temp%\spm.exe

(Note: %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, XP, and Server 2003.)

As of this writing, the said sites are inaccessible.