1/20/2020 3:54 PM | |
Joined: 9/9/2014 Last visit: 7/11/2024 Posts: 246 Rating:
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Hello, This is an old topic for me, earlier I cleaned glass production from Stuxnet - since it did not harm us anyway, because it was aimed at other things ... I was scared to see this thing spreading over the industrial network ... Check out the links below. PLC-Blaster: A Worm Living Solely in the PLC PLC-Blaster: A worm Living Solely In The PLC (YOUTUBE) This long-standing article on how you can infect your PLC with an example - s7-1200 However, there are methods that can at least somehow protect themselves, the enterprise and the controller See below Program size control in the controller CRC16 application in PLC (STL and SCL) SIMATIC S7-1500: AT 3 - Intellectual Property Protection Total: 1. The simplest (but not always working) is to restrict access to the PLC using a firewall - simply and tastefully. 2. Using size control of the work program downloaded to your PLC 3. Control - checksum - data blocks that your PLC works with 4. Use of blocks with protection. However, the use of blocks with protection against viewing and recording does not save you from problems (read the article above) - malicious code can view protected blocks ... and change them. 5. A more effective method (already based on the new 1200/1500 series controllers) is to restrict access using the hardware configuration. You decide what to do. However, as practice shows, attacks on industrial PLCs are not simple ... |
Last edited by: Unreality at: 01/21/2020 14:24:10Best Regards |
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1/22/2020 11:16 AM | |
Joined: 6/19/2017 Last visit: 9/6/2024 Posts: 8175 Rating:
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Hi JKV JAMES, I forwarded your thread to the responsible persons for security subjects and received following recommendation:
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