W32.Madag.A
Reported: May 7, 2008
Category: Worm, Threats
W32.Madag.A can spreads on computer by infecting Word Document (.doc) files and creating a copy of itself on removable storage devices.
Other Alias: -
Threat Level: Low
Systems Affected: Windows - All
More: W32.Madag.A on SSR



1. Temporarily Disable System Restore (Windows Me/XP). [how to]
2. Update the virus definitions.
3. Reboot computer in SafeMode [how to]
4. Run a full system scan and clean/delete all infected file(s)
5. Delete/Modify any values added to the registry. [how to edit registry]
Navigate to and delete the following registry entries:
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run\”this free” = “c:\Windows\winsyst.exe”
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run\”vbwq cute” = “c:\WINDOWS\winnt.exe”
Navigate to and restore the following registry entries to their previous values, if required:
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Winlogin\”Shell” = “Explorer.exe c:\WINDOWS\winnt.exe”
HKEY_LOCAL_MACHINE\Software\CurrentControlSet\Control\SafeBoot\”AlternateShell” = “c:\WINDOWS\winsyst.exe”
HKEY_CLASSES_ROOT\.inf\”Default” = “txtfile”
HKEY_CLASSES_ROOT\.reg\”Default” = “txtfile”
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced
\”Hidden” = “2″
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced
\”HideFileExt” = “1″
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced
\”SuperHidden” = “1″
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced
\”ShowSuperHidden” = “0″
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced
\Folder\SuperHidden\”CheckedValue” = “0″
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced
\Folder\SuperHidden\”DefaultValue” = “0″
6. Exit registry editor and restart the computer.
7. In order to make sure that threat is completely eliminated from your computer, carry out a full scan of your computer using AntiVirus and Antispyware Software. Another way to delete the virus using various Antivirus Program without the need to install can be done with Online Virus Scanner.