Identifies use of the fsutil.exe to delete the volume USNJRNL. This technique is used by attackers to eliminate evidence of files created during post-exploitation activities.
Rule type: eql
Risk score: 21
Runs every: 5m
Maximum alerts per execution: 100
- Threat Detection
- Defense Evasion
Rule license: Elastic License v2
## Config If enabling an EQL rule on a non-elastic-agent index (such as beats) for versions <8.2, events will not define `event.ingested` and default fallback for EQL rules was not added until 8.2, so you will need to add a custom pipeline to populate `event.ingested` to @timestamp for this rule to work.
process where event.type in ("start", "process_started") and (process.name : "fsutil.exe" or process.pe.original_file_name == "fsutil.exe") and process.args : "deletejournal" and process.args : "usn"
Framework: MITRE ATT&CKTM
- Name: Defense Evasion
- ID: TA0005
- Reference URL: https://attack.mitre.org/tactics/TA0005/
- Name: Indicator Removal on Host
- ID: T1070
- Reference URL: https://attack.mitre.org/techniques/T1070/
- Name: File Deletion
- ID: T1070.004
- Reference URL: https://attack.mitre.org/techniques/T1070/004/