Author Topic: avast and virii  (Read 4604 times)

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mantra

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avast and virii
« on: July 11, 2003, 07:11:16 PM »
how do the avast team add new virii???

they add only the start strings of a virus .. in the database?

or it's more difficult?!?

are u test every in your computer??!?

Offline igor

  • Avast team
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Re:avast and virii
« Reply #1 on: July 21, 2003, 10:46:24 AM »
Yes, it can be more difficult than adding a string (and definitelly not from the very start - e.g. all the exe files look mostly the same in the beginning  ;))  There are many polymorphic viruses having every instance different from its "parent" - so it's necessary to add a special piece of code to detect these...