Timestomping using Touch Command

edit

Timestomping is an anti-forensics technique which is used to modify the timestamps of a file, often to mimic files that are in the same folder.

Rule type: eql

Rule indices:

  • auditbeat-*
  • logs-endpoint.events.*

Severity: medium

Risk score: 47

Runs every: 5 minutes

Searches indices from: now-9m (Date Math format, see also Additional look-back time)

Maximum alerts per execution: 33

Tags:

  • Elastic
  • Host
  • Linux
  • macOS
  • Threat Detection
  • Defense Evasion

Version: 2 (version history)

Added (Elastic Stack release): 7.11.0

Last modified (Elastic Stack release): 7.11.2

Rule authors: Elastic

Rule license: Elastic License

Rule query

edit
process where event.type in ("start", "process_started") and
process.name == "touch" and wildcard(process.args, "-r", "-t",
"-a*","-m*")

Threat mapping

edit

Framework: MITRE ATT&CKTM

Rule version history

edit
Version 2 (7.11.2 release)
  • Formatting only