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Everything about Welchia

2003 computer worm

Welchia, also known as the "Nachi worm", is a computer worm that exploits a vulnerability in the Microsoft remote procedure call (RPC) service similar to the Blaster worm. However, unlike Blaster, it first searches for and deletes Blaster if it exists, then tries to download and install security patches from Microsoft that would prevent further infection by Blaster, so it is classified as a helpful worm. Welchia was successful in deleting Blaster, but Microsoft claimed that it was not always successful in applying their security patch. Wikipedia →

🧭 Start here: a 6-step reading path

  1. Read the overview: WelchiaA 5-minute orientation
  2. Pick up a classic book: Etude des clostridiacae du genre Welchia, responsables des entérotoxémies animalesThe most-reprinted book on the subject
  3. Read the landmark paper: Rôle de Eimaria Tenella et Eimaria Necatrix dans l’Epizootologie de l’entérite du poussin provoquée par Welchia, Agni var, Paludis C.Cited 1 times
  4. Go sideways: Blaster (computer worm)A closely related topic
  5. Go sideways: Computer wormA closely related topic

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🗂️ The subject at a glance

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🏆 Landmark papers (most cited)

📚 Books worth reading

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