PUA - Nmap/Zenmap Execution — Sigma Rule

Rule metadata and linked tags

Author: frack113. Source status: test; severity: medium. Source dates: 2021-12-10 / 2023-12-11.

{
  "category": "process_creation",
  "product": "windows"
}

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: f8f921f6914c4b1844f682adc86eb48d21c13182a07419de48ce32cc14bd7630

Detection logic

Original source YAML. Source-tag agreement is not proof of complete semantic coverage. This rule has not been compiled for a SIEM backend or validated against live telemetry here.

title: PUA - Nmap/Zenmap Execution
id: f6ecd1cf-19b8-4488-97f6-00f0924991a3
status: test
description: Detects usage of namp/zenmap. Adversaries may attempt to get a listing of services running on remote hosts, including those that may be vulnerable to remote software exploitation
references:
    - https://nmap.org/
    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1046/T1046.md#atomic-test-3---port-scan-nmap-for-windows
author: frack113
date: 2021-12-10
modified: 2023-12-11
tags:
    - attack.discovery
    - attack.t1046
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        - Image|endswith:
              - '\nmap.exe'
              - '\zennmap.exe'
        - OriginalFileName:
              - 'nmap.exe'
              - 'zennmap.exe'
    condition: selection
falsepositives:
    - Legitimate administrator activity
level: medium

Original YAML and metadata in JSON

False positives

• Legitimate administrator activity

Source references

• https://nmap.org/
• https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1046/T1046.md#atomic-test-3---port-scan-nmap-for-windows