This documentation contains work-in-progress information for future Elastic Stack and Cloud releases. Use the version selector to view supported release docs. It also contains some Elastic Cloud serverless information. Check out our serverless docs for more details.
Unusual Process Execution Path - Alternate Data Stream
editUnusual Process Execution Path - Alternate Data Stream
editIdentifies processes running from an Alternate Data Stream. This is uncommon for legitimate processes and sometimes done by adversaries to hide malware.
Rule type: eql
Rule indices:
- logs-endpoint.events.*
- winlogbeat-*
- logs-windows.*
- endgame-*
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: 100
Tags:
- Elastic
- Host
- Windows
- Threat Detection
- Defense Evasion
- Elastic Endgame
Version: 101 (version history)
Added (Elastic Stack release): 7.11.0
Last modified (Elastic Stack release): 8.6.0
Rule authors: Elastic
Rule license: Elastic License v2
Investigation guide
editRule query
editprocess where event.type == "start" and process.args : "?:\\*:*" and process.args_count == 1
Threat mapping
editFramework: MITRE ATT&CKTM
-
Tactic:
- Name: Defense Evasion
- ID: TA0005
- Reference URL: https://attack.mitre.org/tactics/TA0005/
-
Technique:
- Name: Hide Artifacts
- ID: T1564
- Reference URL: https://attack.mitre.org/techniques/T1564/
Rule version history
edit- Version 101 (8.6.0 release)
-
- Formatting only
- Version 100 (8.5.0 release)
-
- Formatting only
- Version 8 (8.4.0 release)
-
- Formatting only
- Version 6 (8.2.0 release)
-
- Formatting only
- Version 5 (7.16.0 release)
-
- Formatting only
- Version 4 (7.13.0 release)
-
-
Updated query, changed from:
process where event.type in ("start", "process_started") and process.args : "C:\\*:*"
-
- Version 3 (7.12.0 release)
-
- Formatting only
- Version 2 (7.11.2 release)
-
- Formatting only