Uncommon Port to IP

Identifies abnormal ports used by machines to connect to a destination IP based on learning period activity. This can indicate exfiltration attack or C2 control from machines in the organization by using a new port.

Detection logic

Detection requirements

Platform: ESXi IaaS Linux macOS Network Devices Office Suite SaaS Windows
The rule states no platform. This is derived from the 2 ATT&CK techniques it maps to.
Log source product: azurefirewall
Log source service: azfwapplicationrule azfwnetworkrule azurediagnostics

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Detection rules

Uncommon Port to IP

Detection logic

Detection requirements

MITRE ATT&CK mappings

From the source

Licence

Authorship

Detection rules