Can Modbus RS485 communication be attacked by viruses?
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I use KingView to communicate via Modbus RS485 with the Zhejiang University Control JX300XP system in order to retrieve approximately 7 pieces of data, which are then stored in the SQL SERVER 2008 database on the computer running KingView. External platforms can retrieve data from our database over a TCP/IP network. My question is: if the computer running KingView gets infected while connected to the Internet, could it still affect the Zhejiang University Control DCS system through Modbus RS485 communication?
How lazy must someone be to be able to attack your system like this? !
You can try a secure bridge; it can only transfer data to you via the central control system.
For convenience, could you explain what a security bridge is and how it works, or rather, how it helps to isolate viruses?
“How to isolate the virus?” :Lol, a virus is just a piece of code, a software program; if the computer operates in isolation without being connected to the internet, then it’s done, right?.....
I’m not quite sure about this either; it’s similar to a diode – only DCS can send messages to KingView, and the messages sent by KingView are intercepted by the bridge.
It seems better to add a firewall then
Don’t worry too much about it – what if there’s spyware or viruses hidden in the chips? The enemies could use satellites controlled by the United States to activate these threats; as long as you turn on your computers, you’ll get infected. Hehehe, even the Defense Department can’t prevent such things from happening. :lol
Maybe they’re spies; they’ve already used those foreign-made converters to plant viruses in the chips........ Hehehe, being a lackey of foreigners means the industry is bound to be high-risk. Whether the computer is connected to the Internet or not, we can still deal with your miners. Don’t think too much about it. Thinking too much leads to no way out.