Helpful worm

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Helpful worms are worms that help to patch against and remove other worms. An example of a Helpful worm is Welchia. Also called anti-worms.

[edit] Shortcomings

Many of these have the following shortcomings:

  • They cannot be controlled.
  • They do not limit the speed at which they spread.
  • They, when necessary, auto-reboot without the permission of the user.
  • They don't log events indicating what they have done.
  • They may run a server on the infected system.


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