Summary

Summary
Action
More Information
| How it spreads |
|
|---|---|
| Affected operating systems | Windows |
| Characteristics |
|
| Protection available since | 5 December 2004 17:56:27 (GMT) |
| Detected by | All Sophos products |
- Endpoint Security and Control 9.0
- Small business solutions 4.0
Action

Summary
Action
More Information
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.
Each user has a registry area named HKEY_USERS\[code number indicating user]\. For each user locate the entry:
HKU\[code number]\Software\Microsoft\Windows\
CurrentVersion\Run\
and remove any reference to any file you deleted.
Close the registry editor.
More Information
W32/Rbot-RC is an IRC backdoor Trojan and network worm.
W32/Rbot-RC 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-RC copies itself to the Windows system folder and creates registry entries to run itself automatically at system log-on.
W32/Rbot-RC will listen on port 113 for incoming commands such as to delete network shares, log keypresses, participate in DDoS attacks, scan other computers for vulnerabilities, steal passwords, steal registration keys for computer games and capture video from webcameras attached to infected computers. W32/Rbot-RC is an IRC backdoor Trojan and network worm.
W32/Rbot-RC 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-RC copies itself to the Windows system folder and creates the following registry entries to run itself automatically on log-on:
HKLM\Software\Microsoft\Windows\CurrentVersion\Run\
Microsfot Lmhosting Servic
lmhosts.exe
HKLM\Software\Microsoft\Windows\CurrentVersion\RunServices\
Microsfot Lmhosting Service
lmhosts.exe
HKCU\Software\Microsoft\Windows\CurrentVersion\Run\Microsfot Lmhosting Service
lmhosts.exe
In addition, W32/Rbot-RC also creates the registry entry HKLM\SOFTWARE\Krypton\ that will show a reference to the original copy of the worm that gets deleted upon execution.
W32/Rbot-RC will listen on port 113 for incoming commands such as to delete network shares, log keypresses, participate in DDoS attacks, scan other computers for vulnerabilities, steal passwords, steal registration keys for computer games and capture video from webcameras attached to infected computers.
