Sophos

W32/Rbot-AQD

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 November 2005 (3.99)
Protection available since 4 October 2005 08:02:49 (GMT)
Detected by All Sophos products

Action

More Information

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

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

W32/Rbot-AQD 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-AQD copies itself to <System>\Syga.exe.

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

HKCU\Software\Microsoft\Windows\CurrentVersion\Run
Sygate Personal Firewall
Syga.exe

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Sygate Personal Firewall
Syga.exe

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices
Sygate Personal Firewall
Syga.exe

Registry entries are set as follows:

HKLM\SOFTWARE\Microsoft\Ole
EnableDCOM
N

HKLM\SYSTEM\CurrentControlSet\Control\Lsa
restrictanonymous
1

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

MS04-011
MS04-012
MS03-007

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