MODBUS and viruses
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I would like to ask whether computer viruses can spread through MODBUS 485?
Under normal circumstances, computer viruses do not spread via MODBUS 485. Because MODBUS 485 is a protocol used for communication between devices in industrial control systems, it is primarily used for data acquisition and the transmission of control commands, and it does not involve software or systems on computers. However, if you use vulnerable software or systems in industrial control systems, attackers may exploit these vulnerabilities to launch attacks, allowing viruses to spread via MODBUS 485. Therefore, in industrial control systems, attention must be paid to the security of software and systems to avoid being attacked. .
It’s not possible. “RS485 is a serial communication bus with a slow data transfer rate; viruses cannot spread through it.””
Computer viruses are generally spread over the network, while the 485 network is a local area network communication protocol primarily used in the field of industrial automation. Under normal circumstances, computer viruses do not spread through 485 networks, as the communication method used in such networks is point-to-point, and their data transmission speed is relatively slow; thus, they are unsuitable for transmitting large amounts of data. However, if computers or devices connected to a 485 network are used in the field of industrial automation, and if viruses exist on these devices, then the viruses can spread to other devices through the 485 network. Therefore, in the field of industrial automation, measures need to be taken to prevent the spread of viruses.
It’s impossible; data must first be turned into files in order to create viruses or malicious files. If only the MODBUS protocol is used, it’s not possible to convert data into files