Sophos

W32/Rbot-RA

Category
Type
What to do
Prevalence low high

Summary

 
How it spreads
  • Network shares
Affected operating systems Windows
Protection available since 3 December 2004 21:04:48 (GMT)
Detected by All Sophos products
  • Free virus, spyware, and adware scan
  • Test your existing anti-virus protection
  • Find threats your anti-virus missed

Action

Please follow the instructions for removing worms.

Change any data that may have become compromised.

You will also need to edit the following registry entries, if they are present. Please read the warning about editing the registry.

At the taskbar, click Start|Run. Type 'Regedit' and press Return. The registry editor opens.

Before you edit the registry, you should make a backup. On the 'Registry' menu, click 'Export Registry File'. In the 'Export range' panel, click 'All', then save your registry as Backup.

Locate the HKEY_LOCAL_MACHINE entries:

HKLM\Software\Microsoft\Windows\CurrentVersion\Run

HKLM\Software\Microsoft\Windows\CurrentVersion\RunServices

and remove any reference to any file you deleted.

Close the registry editor.

More Information

Sophos's Anti-Virus products include proactive protection technology, which can defend against new threats without requiring an update. Sophos customers have been protected against W32/Rbot-RA (detected as W32/Rbot-Gen) since version 3.88.

W32/Rbot-RA is an IRC backdoor Trojan and network worm.

W32/Rbot-RA may spread to remote network shares protected by weak passwords and computers vulnerable to common exploits. The worm also opens up a backdoor, allowing unauthorised remote access to infected computers via the IRC network, while running in the background as a service process.

W32/Rbot-RA can receive commands from a remote intruder to delete network shares, log keypresses, participate in DDoS attacks, scan other computers for vulnerabilities, steal passwords, steal registration keys for computer games, create administrator accounts and capture video from webcameras attached to the computer.

HKLM\Software\Microsoft\Windows\CurrentVersion\Run\
win32usbd
"ssrs.exe"

HKLM\Software\Microsoft\Windows\CurrentVersion\RunServices\
win32usbd
"ssrs.exe"

W32/Rbot-RA also creates the following registry entry:

HKCU\Software\Microsoft\OLE\
win32usbd
"ssrs.exe"

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