W32/Cycle-A

Category: Viruses and Spyware
Type: Win32 worm
Prevalence: Small Number of Reports

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Affected Operating Systems

Windows

Recovery Instructions:

Please follow the instructions for removing worms.

Download and install the Microsoft patch mentioned above.

Windows NT/2000/XP/2003

In Windows NT/2000/XP/2003 you will also need to edit the following registry entry. The removal of this entry is optional in Windows 95/98/Me. 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 entry:

HKLM\Software\Microsoft\Windows\CurrentVersion\Run\

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.

You should also delete the following:

HKLM\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_HOST_SERVICE\

HKLM\SYSTEM\CurrentControlSet\Services\Host Service\

Close the registry editor.

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