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MODBUS Client 'Restart Communications' Request (SCADA) (deprecated)

Info

Synopsis

PVS has just observed a Modbus 'Restart Communications' request.

Description

The remote client is running the MODBUS protocol. This protocol is common on SCADA or process control networks. PVS has just observed a Modbus 'Restart Communications' request. This sort of request can be used by a malicious client to force the PLC server to continuously power cycle. This can deny services to valid devices.