1200KM / sigma-rule
Steganography Extract Files with Steghide — Sigma Rule
Sigma rule a5a827d9-1bbe-4952-9293-c59d897eb41b. Steganography Extract Files with Steghide — Sigma Rule. Detects extraction of files with usage of steghide binary, the adversaries may use this technique to prevent the detection of hidden information.
Rule metadata and linked tags
Author: Pawel Mazur. Source status: test; severity: low. Source dates: 2021-09-11 / 2022-10-09.
{
"product": "linux",
"service": "auditd"
}Pinned original Sigma rule · Detection Rule License 1.1
Source SHA-256: 9aa0d2054f87d0a1ac5bf32524b660f8a3acba5058af398ddf85dd5b0516819f
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: Steganography Extract Files with Steghide
id: a5a827d9-1bbe-4952-9293-c59d897eb41b
status: test
description: Detects extraction of files with usage of steghide binary, the adversaries may use this technique to prevent the detection of hidden information.
references:
- https://vitux.com/how-to-hide-confidential-files-in-images-on-debian-using-steganography/
author: 'Pawel Mazur'
date: 2021-09-11
modified: 2022-10-09
tags:
- attack.stealth
- attack.t1027.003
logsource:
product: linux
service: auditd
detection:
selection:
type: EXECVE
a0: steghide
a1: extract
a2: '-sf'
a3|endswith:
- '.jpg'
- '.png'
condition: selection
falsepositives:
- Unknown
level: low
False positives
- Unknown
Source references
Connected ecosystem references
Exact source-tagged techniques
Telemetry review
Read the original logsource above, then inspect the linked detection workspaces for technique-level sensor context. No per-rule telemetry equivalence is inferred.
Pinned research references. No browser attack runner, live simulation result or validated detector is asserted. Source mappings and validation limits are preserved. ATT&CK / Atomic provenance · Detection provenance.