W32/Mytob-FM

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.

Close the registry editor.

W32/Mytob-FM is a mass-mailing worm and IRC backdoor for the Windows platform.

W32/Mytob-FM 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. W32/Mytob-FM is a mass-mailing worm and IRC backdoor for the Windows platform.

W32/Mytob-FM 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/Mytob-FM copies itself to <System>\wID32.exe.

The following registry entries are created to run wID32.exe on startup:

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
WINDOWS ID SYSTEM
wID32.exe

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices
WINDOWS ID SYSTEM
wID32.exe

W32/Mytob-FM sets the following registry entries, disabling the automatic startup of other software:

HKLM\SYSTEM\CurrentControlSet\Services\SharedAccess
Start
4

Note: disabling autostart for the SharedAccess service deactivates the Microsoft Internet Connection Firewall (ICF).