Possible Arbitrary Command Execution Through FTP.EXE (via process_creation)

This rule detects execution of "ftp.exe" script with the "-s" or "/s" flag and any child processes ran by "ftp.exe".

SigmamediumWindowsv1
sigma
title: Possible Arbitrary Command Execution Through FTP.EXE (via process_creation)
id: 63eb836e-1834-55a1-9bdb-2619d8c8cc3d
status: stable
description: This rule detects execution of "ftp.exe" script with the "-s" or "/s" flag and any child processes ran by "ftp.exe".
references:
    - https://attack.mitre.org/techniques/T1202/
    - https://attack.mitre.org/techniques/T1059/
    - https://lolbas-project.github.io/lolbas/Binaries/Ftp/
author: Huntrule Team
date: 2026-01-07
tags:
    - attack.execution
    - attack.stealth
    - attack.t1059
    - attack.t1202
logsource:
    category: process_creation
    product: windows
detection:
    selection_parent:
        ParentImage|endswith: '\ftp.exe'
    selection_child_img:
        - Image|endswith: '\ftp.exe'
        - OriginalFileName: 'ftp.exe'
    selection_child_cli:
        CommandLine|contains|windash: '-s:'
    condition: selection_parent or all of selection_child_*
falsepositives:
    - Unknown
level: medium

Known false positives

  • Unknown

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.