Potential Arbitrary Command Execution Via FTP.EXE — Sigma Rule

Rule metadata and linked tags

Author: Victor Sergeev, oscd.community. Source status: test; severity: medium. Source dates: 2020-10-09 / 2024-04-23.

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

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: 09e33c44cdcd7745b282448b258e2c40f5ccda04cb9e3dcbc1d28603e776c0ba

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: Potential Arbitrary Command Execution Via FTP.EXE
id: 06b401f4-107c-4ff9-947f-9ec1e7649f1e
status: test
description: Detects execution of "ftp.exe" script with the "-s" or "/s" flag and any child processes ran by "ftp.exe".
references:
    - https://lolbas-project.github.io/lolbas/Binaries/Ftp/
author: Victor Sergeev, oscd.community
date: 2020-10-09
modified: 2024-04-23
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

Original YAML and metadata in JSON

False positives

• Unknown

Source references

• https://lolbas-project.github.io/lolbas/Binaries/Ftp/