Sophos

W32/Rbot-BPQ

Aliases
  • W32/Sdbot.worm.gen.x
Category
Type
What to do
Prevalence low high

Summary

 
How it spreads
  • Network shares
Affected operating systems Windows
Characteristics
  • Installs itself in the registry
Included in our products from March 2006 (4.03)
Protection available since 19 January 2006 09:01:13 (GMT)
Detected by All Sophos products

Action

More Information

W32/Rbot-BPQ is a worm and IRC backdoor Trojan for the Windows platform.

W32/Rbot-BPQ spreads:

- to other network computers infected with Troj/Sub7, Troj/NetDevil, W32/MyDoom, W32/Bagle and Troj/Optix
- to other network computers by exploiting common buffer overflow vulnerabilities, including: LSASS (MS04-011), RPC-DCOM (MS04-012), WebDav (MS03-007), IIS5SSL (MS04-011) (CAN-2003-0719), UPNP (MS01-059) and Dameware (CAN-2003-1030)
- by copying itself to network shares protected by weak passwords

W32/Rbot-BPQ 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.

When first run W32/Rbot-BPQ copies itself to <System>\taskmamngr.exe.

The following registry entries are created to run taskmamngr.exe on startup:

HKCU\Software\Microsoft\Windows\CurrentVersion\Run
Task manager
taskmamngr.exe

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices
Task manager
taskmamngr.exe

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Task manager
taskmamngr.exe

Registry entries are set as follows:

HKLM\SOFTWARE\Microsoft\Ole
EnableDCOM
N

HKLM\SYSTEM\CurrentControlSet\Control\Lsa
restrictanonymous
1

W32/Rbot-BPQ includes functionality to:

- record keystrokes
- download files from the internet without user notification
- setup a SOCKS4 server
- terminate system, anti-virus and security related applications
- perform DoS attacks

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