VBS.GodWill.A@mm

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Discovered: April 10, 2001
Updated: February 13, 2007 11:58:51 AM
Type: Worm


This Worm attempts to spread to all recipients in your Microsoft Outlook Address Book. This worm configures itself to run every time that an infected computer starts.

Antivirus Protection Dates

  • Initial Rapid Release version April 10, 2001
  • Latest Rapid Release version September 28, 2010 revision 054
  • Initial Daily Certified version April 10, 2001
  • Latest Daily Certified version September 28, 2010 revision 036

Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.

Writeup By: Douglas Knowles

Discovered: April 10, 2001
Updated: February 13, 2007 11:58:51 AM
Type: Worm


This worm copies itself to the C:\Windows\System.vbs file. It configures the registry to cause this file to execute when Windows starts.

This worm attempts to spread to all recipients in a user's Outlook Address Book, and will successfully send the following message:

Subject: Here you have, ;o)
Message: "RE:" & vbcrlf & "Ciriciao gente!" & vbcrlf & ""
Attachment: DrSlumpeArale.flw.vbs

However, the file that it attempts to attaches does not exist, so the worm will not successfully spread.

The worm also changes the Internet Explorer home page to the virus writer's home page.

VBS.GodWill.A@mm modifies the following registry keys:

HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run\System

HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main\Window Title

HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main\Start Page

VBS.GodWill.A@mm creates the following registry key:

HKEY_CURRENT_USER\Software\GodWill\mailato

which it will set to a value of once the worm has executed.

Recommendations

Symantec Security Response encourages all users and administrators to adhere to the following basic security "best practices":

  • Use a firewall to block all incoming connections from the Internet to services that should not be publicly available. By default, you should deny all incoming connections and only allow services you explicitly want to offer to the outside world.
  • Enforce a password policy. Complex passwords make it difficult to crack password files on compromised computers. This helps to prevent or limit damage when a computer is compromised.
  • Ensure that programs and users of the computer use the lowest level of privileges necessary to complete a task. When prompted for a root or UAC password, ensure that the program asking for administration-level access is a legitimate application.
  • Disable AutoPlay to prevent the automatic launching of executable files on network and removable drives, and disconnect the drives when not required. If write access is not required, enable read-only mode if the option is available.
  • Turn off file sharing if not needed. If file sharing is required, use ACLs and password protection to limit access. Disable anonymous access to shared folders. Grant access only to user accounts with strong passwords to folders that must be shared.
  • Turn off and remove unnecessary services. By default, many operating systems install auxiliary services that are not critical. These services are avenues of attack. If they are removed, threats have less avenues of attack.
  • If a threat exploits one or more network services, disable, or block access to, those services until a patch is applied.
  • Always keep your patch levels up-to-date, especially on computers that host public services and are accessible through the firewall, such as HTTP, FTP, mail, and DNS services.
  • Configure your email server to block or remove email that contains file attachments that are commonly used to spread threats, such as .vbs, .bat, .exe, .pif and .scr files.
  • Isolate compromised computers quickly to prevent threats from spreading further. Perform a forensic analysis and restore the computers using trusted media.
  • Train employees not to open attachments unless they are expecting them. Also, do not execute software that is downloaded from the Internet unless it has been scanned for viruses. Simply visiting a compromised Web site can cause infection if certain browser vulnerabilities are not patched.
  • If Bluetooth is not required for mobile devices, it should be turned off. If you require its use, ensure that the device's visibility is set to "Hidden" so that it cannot be scanned by other Bluetooth devices. If device pairing must be used, ensure that all devices are set to "Unauthorized", requiring authorization for each connection request. Do not accept applications that are unsigned or sent from unknown sources.
  • For further information on the terms used in this document, please refer to the Security Response glossary.

Writeup By: Douglas Knowles

Discovered: April 10, 2001
Updated: February 13, 2007 11:58:51 AM
Type: Worm


Files detected as VBS.GodWill.A@mm must be deleted, and the registry keys need to be restored.

To remove this worm:

  1. Run LiveUpdate to make sure that you have the most recent virus definitions.
  2. Start Norton AntiVirus (NAV), and run a full system scan, making sure that NAV is set to scan all files.
  3. Delete any files detected as VBS.GodWill.A@mm.

To edit the registry:

CAUTION : We strongly recommend that you back up the system registry before making any changes. Incorrect changes to the registry could result in permanent data loss or corrupted files. Please make sure you modify only the keys specified. Please see the document How to back up the Windows registry before proceeding.
  1. Click Start, and click Run. The Run dialog box appears.
  2. Type regedit and then click OK. The Registry Editor opens.
  3. Navigate to and select the following key:

    HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
  4. In the left pane, under the \Run key, select and delete the System subkey.
  5. Navigate to and delete the following key:

    HKEY_CURRENT_USER\Software\GodWill\mailato
  6. Navigate to the following key:

    HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main
  7. In the right pane, delete the following value:

    Window Title
  8. Exit the Registry Editor.
  9. (Optional) Reset your Internet Explorer home page from within the program.


Writeup By: Douglas Knowles