Monday, February 21, 2011

What is stuxnet worm and what does it do

Stuxnet worm is a malicious program which basically targets nuclear reactors (especially Iran's nuclear reactors)by making drastic changes in rotational speeds of the motors shifting the speeds of motors rapidly up and down thereby creating a disaster. 

Stuxnet objective was to take over the frequency converters which changes the frequency to control the speeds of the motors. It increases the frequency of power supply to the centrifuges so that it will spin faster to reach very high frequency enough to blast centrifuges. The code of stuxnet was written in a manner that targets the frequency converters made by two companies Fararo  payer and vacon.

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