W32/Rbot-KO

Please follow the instructions for removing worms.

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.

W32/Rbot-KO is a worm of the Rbot family which attempts to spread to remote network shares. It also contains backdoor Trojan functionality allowing unauthorised remote access to the infected computer via IRC channels while running in the background as a service process. W32/Rbot-KO is a worm of the Rbot family which attempts to spread to remote network shares. It also contains backdoor Trojan functionality allowing unauthorised remote access to the infected computer via IRC channels while running in the background as a service process.

W32/Rbot-KO spreads to network shares with weak passwords as a result of the backdoor Trojan element receiving the appropriate commands from a remote user via an IRC channel.

W32/Rbot-KO copies itself to the Windows system folder as slserv32.exe and creates entries in the registry at the following locations to run itself on system startup:

HKLM\Software\Microsoft\Windows\CurrentVersion\Run\
Windows Service = <%SYSTEM%>\slserv32.exe

HKLM\Software\Microsoft\Windows\CurrentVersion\RunServices\
Windows Service = <%SYSTEM%>\slserv32.exe

HKCU\Software\Microsoft\OLE\
Windows Service = <%SYSTEM%>\slserv32.exe

W32/Rbot-KO also spreads by scanning for and exploiting various vulnerabilities such as RPC/DCOM, LSASS, SUB7 etc.

To avoid detection the worm will terminate various AntiVirus and security related processes.