Elastic high stable eql

Incoming DCOM Lateral Movement with MMC

Identifies the use of Distributed Component Object Model (DCOM) to run commands from a remote host, which are launched via the MMC20 Application COM Object. This behavior may indicate an attacker abusing a DCOM application to move laterally.

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Detection Logic

sequence by host.id with maxspan=1m
 [network where host.os.type == "windows" and event.type == "start" and process.name : "mmc.exe" and source.port >= 49152 and
  destination.port >= 49152 and source.ip != "127.0.0.1" and source.ip != "::1" and
  network.direction : ("incoming", "ingress") and network.transport == "tcp"
 ] by process.entity_id
 [process where host.os.type == "windows" and event.type == "start" and process.parent.name : "mmc.exe"
 ] by process.parent.entity_id

Field Validations

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