W32/Rbot-AWP

Please follow the instructions for removing worms.

W32/Rbot-AWP is a network and IM worm and an IRC backdoor Trojan for the Windows platform.

W32/Rbot-AWP runs continuously in the background, providing a backdoor server which allows a remote intruder to gain access and control over the computer via IRC channels.

W32/Rbot-AWP spreads to other network computers:

- by exploiting common buffer overflow vulnerabilities, including: LSASS (MS04-011), RPC-DCOM (MS04-012), WKS (MS03-049) (CAN-2003-0812) and PNP (MS05-039)

- by copying itself to network shares protected by weak passwords

- by sending itself via MSN Messenger, Yahoo Instant Messenger and AOL Instant Messenger

When first run W32/Rbot-AWP copies itself to <System>\task-mngr.exe.

The following registry entries are created to run task-mngr.exe on startup:

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Windows Bootup
task-mngr.exe

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices
Windows Bootup
task-mngr.exe

Registry entries are set as follows:

HKLM\SYSTEM\CurrentControlSet\Control\Lsa
restrictanonymous
1

HKLM\SOFTWARE\Microsoft\Ole
EnableDCOM
N

W32/Rbot-AWP includes functionality to:

- access the internet and communicate with a remote server via HTTP
- perform DDoS attacks
- download files from the internet and run them
- setup a SOCKS4 proxy

The following patches for the operating system vulnerabilities exploited by W32/Rbot-AWP can be obtained from the Microsoft website:

MS04-011
MS04-012
MS03-049
MS05-039
MS04-007