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
127,267 bytes
Yes
09 Apr 2012
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