Understanding stuxnet in relation to PLCs

Asked By James D Costanza 60 points N/A Posted on - 12/30/2014

How is stuxnet designed to attack industrial programmable Logic Controllers (PLCs)? What operating system is at the most risk? Can stuxnet be a threat to a corporation that strictly forbids the use of USB drive on its systems? How long can stuxnet stay in a system without causing any damage? Is there any variant of stuxnet?

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Answered By Nortan gabriel 5 points N/A #193150

Understanding stuxnet in relation to PLCs

Hello,

 

Stuxnet is designed to target machines running Windows and networks. It then locates Siemens Step7 software. It is dormant until it locates the software. It only attacks PLC systems from two vendors: Vacon and Fararo Paya. Even if USB drives are prohibited, stuxnet remains a threat. The best protection is good system maintenance which includes OS and antimalware software updates. There are many variants being discovered that are more sophisticated and more dangerous.

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• Posted on - 01/18/2015
• Question Category: Latest Threats