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Published Apr 05, 2006 | Updated Sep 15, 2017

Worm:Win32/Ganda.A@mm

Detected by Microsoft Defender Antivirus

Aliases: No associated aliases

Summary

Win32/Ganda.A@mm is a mass-mailing worm that targets Microsoft Windows. The worm sends a copy of itself as an e-mail attachment to e-mail addresses that it finds on the infected computer. The e-mail may be in English or Swedish. The worm infects the computer when the user opens the attachment. The worm can exploit Windows vulnerability MS01-020, which allows an executable e-mail attachment to run automatically when a user merely previews or opens an e-mail message. Win32/Ganda.A@mm has a file-infector component that  replaces an API function call with code that runs a copy of the worm.
It is not possible to recover manually from Win32/Ganda.A@mm.  You must use up-to-date antivirus software to remove this worm from your computer. To recover from this worm using antivirus software, follow these steps:
  1. Disconnect from the Internet.
  2. Run up-to-date antivirus software.
  3. Take steps to prevent re-infection.

Disconnect from the Internet  

To help ensure that your computer is not actively infecting other computers, disconnect it from the Internet before proceeding by unplugging your network cable or disabling your wireless connection. You can reconnect to the Internet after running antivirus software.

Run up-to-date antivirus software  

Run up-to-date antivirus software to remove this worm from your computer.

Take steps to prevent re-infection  

Do not reconnect your computer to the Internet until the computer is protected from re-infection. See the "How to Prevent Infection" section for more information.
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