Hayabusa high test sigma

Network Reconnaissance Activity

Detects a set of suspicious network related commands often used in recon stages

View Source

Detection Logic

{
  "process_creation": {
    "EventID": 4688,
    "Channel": "Security"
  },
  "selection": {
    "CommandLine
| contains
| all": [
      "nslookup",
      "_ldap._tcp.dc._msdcs."
    ]
  },
  "condition": "process_creation and selection"
}

False Positives

  • False positives depend on scripts and administrative tools used in the monitored environment

Field Validations

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