W32/Crowt-A

Category: Viruses and Spyware
Type: Win32 worm
Prevalence: No Reports

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Aliases

  • WORM_CROWT.A

Characteristics

  • Allows others to access the computer
  • Deletes files off the computer
  • Steals information

Affected Operating Systems

Windows

Recovery Instructions:

Please follow the instructions for removing worms.

Change any data that may have become compromised.

Delete the file KEYS.TMP in the Windows temp folder if it exists.

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

HKLM\Software\Microsoft\Windows\CurrentVersion\RunServicesOnce

HKLM\Software\Microsoft\Windows\CurrentVersion\RunOnce

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\

HKU\[code number]\Software\Microsoft\Windows\
CurrentVersion\RunServices\

HKU\[code number]\Software\Microsoft\Windows\
CurrentVersion\RunServicesOnce\

HKU\[code number]\Software\Microsoft\Windows\
CurrentVersion\RunOnce\

and remove any reference to any file you deleted.

Delete the following keys. If necessary, reinstall your local network Windows update software on the affected computer or copy and import the keys from another computer.

HKCU\Software\Microsoft\Windows\WindowsUpdate\
Installed

HKCU\Software\Microsoft\Windows\WindowsUpdate\
Sended

HKCU\Software\Microsoft\Windows\WindowsUpdate\
Password

HKCU\Software\Microsoft\Windows\WindowsUpdate\
CallBack

HKCU\Software\Microsoft\Windows\WindowsUpdate\
Id

HKCU\Software\Microsoft\Windows\WindowsUpdate\
Email

HKCU\Software\Microsoft\Windows\WindowsUpdate\
Main Port

HKCU\Software\Microsoft\Windows\WindowsUpdate\
Data Port

HKCU\Software\Microsoft\Windows\WindowsUpdate\
Proxy Port"

Close the registry editor.

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