W32/Rbot-PG

Please follow the instructions for removing worms.

Download and install the Microsoft patches mentioned in the description.

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-PG is a network worm and backdoor Trojan for the Windows platform.

W32/Rbot-PG allows a malicious user remote access to an infected computer.

W32/Rbot-PG spreads using a variety of techniques including exploiting weak passwords on computers and SQL servers, exploiting operating system vulnerabilites (including DCOM-RPC, LSASS, WebDAV and UPNP) and using backdoors opened by other worms or Trojans.

W32/Rbot-PG can be controlled by a remote attacker over IRC channels. W32/Rbot-PG is a network worm and backdoor Trojan for the Windows platform.

W32/Rbot-PG allows a malicious user remote access to an infected computer.

The worm copies itself to a file named wuanclt.exe in the Windows system folder and creates the following registry entries:

HKLM\Software\Microsoft\Windows\CurrentVersion\Run\
*windows update = wuanclt.exe

HKLM\Software\Microsoft\Windows\CurrentVersion\RunServices\
*windows update = wuanclt.exe

HKCU\Software\Microsoft\Windows\CurrentVersion\Run\
*windows update = wuanclt.exe

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\
*windows update = wuanclt.exe

HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\
*windows update = wuanclt.exe

W32/Rbot-PG spreads using a variety of techniques including exploiting weak passwords on computers and SQL servers, exploiting operating system vulnerabilites (including DCOM-RPC, LSASS, WebDAV and UPNP) and using backdoors opened by other worms or Trojans.

W32/Rbot-PG can be controlled by a remote attacker over IRC channels.

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

MS04-011
MS03-026
MS03-007
MS01-059