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Steganography Hide Files with Steghide — Sigma Rule

Sigma rule ce446a9e-30b9-4483-8e38-d2c9ad0a2280. Steganography Hide Files with Steghide — Sigma Rule. Detects embedding 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: 1164009b584234c91043d663eed3a1d3d42813b7ff752daa48c59e2ebb9986fa

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 Hide Files with Steghide
id: ce446a9e-30b9-4483-8e38-d2c9ad0a2280
status: test
description: Detects embedding 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: embed
        a2:
            - '-cf'
            - '-ef'
        a4:
            - '-cf'
            - '-ef'
    condition: selection
falsepositives:
    - Unknown
level: low

Original YAML and metadata in JSON

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.