Elastic medium stable eql

InstallUtil Process Making Network Connections

Identifies InstallUtil.exe making outbound network connections. This may indicate adversarial activity as InstallUtil is often leveraged by adversaries to execute code and evade detection.

View Source

Detection Logic

/* the benefit of doing this as an eql sequence vs kql is this will limit to alerting only on the first network connection */

sequence by process.entity_id
  [process where host.os.type == "windows" and event.type == "start" and process.name : "installutil.exe"]
  [network where host.os.type == "windows" and process.name : "installutil.exe" and network.direction : ("outgoing", "egress")]

Field Validations

Loading…

Comments (0)

Loading comments...