IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
Timestomping using Touch Command
editTimestomping using Touch Command
editTimestomping 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: 100 (version history)
Added (Elastic Stack release): 7.11.0
Last modified (Elastic Stack release): 8.5.0
Rule authors: Elastic
Rule license: Elastic License v2
Investigation guide
editRule query
editprocess where event.type == "start" and process.name : "touch" and
user.id != "0" and process.args : ("-r", "-t", "-a*","-m*") and not
process.args : ("/usr/lib/go-*/bin/go", "/usr/lib/dracut/dracut-
functions.sh", "/tmp/KSInstallAction.*/m/.patch/*")
Threat mapping
editFramework: MITRE ATT&CKTM
-
Tactic:
- Name: Defense Evasion
- ID: TA0005
- Reference URL: https://attack.mitre.org/tactics/TA0005/
-
Technique:
- Name: Indicator Removal on Host
- ID: T1070
- Reference URL: https://attack.mitre.org/techniques/T1070/
Rule version history
edit- Version 100 (8.5.0 release)
-
- Formatting only
- Version 7 (8.4.0 release)
-
- Formatting only
- Version 5 (8.2.0 release)
-
- Formatting only
- Version 4 (7.13.0 release)
-
-
Updated query, changed from:
process where event.type in ("start", "process_started") and process.name : "touch" and process.args : ("-r", "-t", "-a*","-m*")
-
- Version 3 (7.12.0 release)
-
-
Updated query, changed from:
process where event.type in ("start", "process_started") and process.name == "touch" and wildcard(process.args, "-r", "-t", "-a*","-m*")
-
- Version 2 (7.11.2 release)
-
- Formatting only