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suricata/rules/dnp3-events.rules

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# DNP3 application decoder event rules.
#
# This SIDs fall in the 2270000+ range. See:
# http://doc.emergingthreats.net/bin/view/Main/SidAllocation
# Flooded.
alert dnp3 any any -> any any (msg:"SURICATA DNP3 Request flood detected"; \
app-layer-event:dnp3.flooded; classtype:protocol-command-decode; sid:2270000; rev:2;)
# Length to small for PDU type. For example, link specifies the type
# as user data, but the length field is not large enough for user
# data.
alert dnp3 any any -> any any (msg:"SURICATA DNP3 Length too small"; \
app-layer-event:dnp3.len_too_small; classtype:protocol-command-decode; sid:2270001; rev:3;)
# Bad link layer CRC.
alert dnp3 any any -> any any (msg:"SURICATA DNP3 Bad link CRC"; \
app-layer-event:dnp3.bad_link_crc; classtype:protocol-command-decode; sid:2270002; rev:2;)
# Bad transport layer CRC.
alert dnp3 any any -> any any (msg:"SURICATA DNP3 Bad transport CRC"; \
app-layer-event:dnp3.bad_transport_crc; classtype:protocol-command-decode; sid:2270003; rev:2;)
# Unknown object.
alert dnp3 any any -> any any (msg:"SURICATA DNP3 Unknown object"; \
app-layer-event:dnp3.unknown_object; classtype:protocol-command-decode; sid:2270004; rev:2;)