BKDR_SIMBOT.AL
Windows 2000, Windows XP, Windows Server 2003
Threat Type: Backdoor
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
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.
It executes the dropped file(s). As a result, malicious routines of the dropped files are exhibited on the affected system.
It deletes the initially executed copy of itself.
TECHNICAL DETAILS
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 drops the following files:
- %User Temp%\.000
- %User Temp%\ldwc.bat
- %User Temp%\ldwc.exe
- {malware path}\.txt
(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.)
Dropping Routine
This backdoor executes the dropped file(s). As a result, malicious routines of the dropped files are exhibited on the affected system.
Other Details
This backdoor connects to the following possibly malicious URL:
- http://{BLOCKED}.133.145/waypz.php?id={numbers}
It deletes the initially executed copy of itself