Unusual Parent Process for cmd.exeedit
Identifies a suspicious parent child process relationship with cmd.exe descending from an unusual process.
Rule type: eql
Rule indices:
- winlogbeat-*
- logs-endpoint.events.*
- 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
- Execution
- Elastic Endgame
Version: 102 (version history)
Added (Elastic Stack release): 7.10.0
Last modified (Elastic Stack release): 8.6.0
Rule authors: Elastic
Rule license: Elastic License v2
Investigation guideedit
Rule queryedit
process where event.type == "start" and process.name : "cmd.exe" and process.parent.name : ("lsass.exe", "csrss.exe", "epad.exe", "regsvr32.exe", "dllhost.exe", "LogonUI.exe", "wermgr.exe", "spoolsv.exe", "jucheck.exe", "jusched.exe", "ctfmon.exe", "taskhostw.exe", "GoogleUpdate.exe", "sppsvc.exe", "sihost.exe", "slui.exe", "SIHClient.exe", "SearchIndexer.exe", "SearchProtocolHost.exe", "FlashPlayerUpdateService.exe", "WerFault.exe", "WUDFHost.exe", "unsecapp.exe", "wlanext.exe" )
Threat mappingedit
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Execution
- ID: TA0002
- Reference URL: https://attack.mitre.org/tactics/TA0002/
-
Technique:
- Name: Command and Scripting Interpreter
- ID: T1059
- Reference URL: https://attack.mitre.org/techniques/T1059/
Rule version historyedit
- Version 102 (8.6.0 release)
-
- Formatting only
- Version 101 (8.5.0 release)
-
-
Updated query, changed from:
process where event.type in ("start", "process_started") and process.name : "cmd.exe" and process.parent.name : ("lsass.exe", "csrss.exe", "epad.exe", "regsvr32.exe", "dllhost.exe", "LogonUI.exe", "wermgr.exe", "spoolsv.exe", "jucheck.exe", "jusched.exe", "ctfmon.exe", "taskhostw.exe", "GoogleUpdate.exe", "sppsvc.exe", "sihost.exe", "slui.exe", "SIHClient.exe", "SearchIndexer.exe", "SearchProtocolHost.exe", "FlashPlayerUpdateService.exe", "WerFault.exe", "WUDFHost.exe", "unsecapp.exe", "wlanext.exe" )
-
- 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:
event.category:process and event.type:(start or process_started) and process.name:cmd.exe and process.parent.name:(lsass.exe or csrss.exe or notepad.exe or regsvr32.exe or dllhost.exe or LogonUI.exe or wermgr.exe or spoolsv.exe or jucheck.exe or jusched.exe or ctfmon.exe or taskhostw.exe or GoogleUpdate.exe or sppsvc.exe or sihost.exe or slui.exe or SIHClient.exe or SearchIndexer.exe or SearchProtocolHost.exe or FlashPlayerUpdateService.exe or WerFault.exe or WUDFHost.exe or unsecapp.exe or wlanext.exe)
-
- Version 3 (7.12.0 release)
-
- Formatting only
- Version 2 (7.11.2 release)
-
- Formatting only