Sophos

W32/Rbot-BKF

Aliases
  • Backdoor.Win32.Rbot.gen
  • W32/Sdbot.worm.gen.ar
  • Trojan.Mybot.gen-77
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 12 January 2006 22:57:48 (GMT)
Detected by All Sophos products

Action

More Information

W32/Rbot-BKF is a worm for the Windows platform.

W32/Rbot-BKF spreads to other network computers infected with: W32/MyDoom and W32/Bagle, and by exploiting common buffer overflow vulnerabilities, including: LSASS (MS04-011), RPC-DCOM (MS04-012) and WebDav (MS03-007).

W32/Rbot-BKF 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-BKF copies itself to <System>\FirewallingV10.exe.

The following registry entry is set to run FirewallingV10.exe on startup:

HKCU\Software\Microsoft\Windows\CurrentVersion\Run
Life Personal Firewall
FirewallingV10.exe

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Life Personal Firewall
FirewallingV10.exe

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices
Life Personal Firewall
FirewallingV10.exe

Registry entries are set as follows:

HKLM\SOFTWARE\Microsoft\Ole
EnableDCOM
N

HKLM\SYSTEM\CurrentControlSet\Control\Lsa
restrictanonymous
1

W32/Rbot-BKF includes functionality to:

- access the internet and communicate with a remote server via HTTP
- steal information
- carry out DDoS attacks
- log keystrokes
- capture screenshots
- terminates anti-virus and security related processes

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