IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
Local Scheduled Task Creation
editLocal Scheduled Task Creation
editIndicates the creation of a scheduled task. Adversaries can use these to establish persistence, move laterally, and/or escalate privileges.
Rule type: eql
Rule indices:
- winlogbeat-*
- logs-endpoint.events.process-*
- logs-windows.sysmon_operational-*
Severity: low
Risk score: 21
Runs every: 5m
Searches indices from: now-9m (Date Math format, see also Additional look-back time)
Maximum alerts per execution: 100
References:
- https://www.elastic.co/security-labs/hunting-for-persistence-using-elastic-security-part-1
- https://www.elastic.co/security-labs/hunting-for-persistence-using-elastic-security-part-2
- https://www.elastic.co/security-labs/invisible-miners-unveiling-ghostengine
- https://www.elastic.co/security-labs/elastic-protects-against-data-wiper-malware-targeting-ukraine-hermeticwiper
Tags:
- Domain: Endpoint
- OS: Windows
- Use Case: Threat Detection
- Tactic: Persistence
- Data Source: Elastic Defend
- Data Source: Sysmon
Version: 208
Rule authors:
- Elastic
Rule license: Elastic License v2
Rule query
editsequence with maxspan=1m
[process where host.os.type == "windows" and event.type != "end" and
((process.name : ("cmd.exe", "wscript.exe", "rundll32.exe", "regsvr32.exe", "wmic.exe", "mshta.exe",
"powershell.exe", "pwsh.exe", "powershell_ise.exe", "WmiPrvSe.exe", "wsmprovhost.exe", "winrshost.exe") or
process.pe.original_file_name : ("cmd.exe", "wscript.exe", "rundll32.exe", "regsvr32.exe", "wmic.exe", "mshta.exe",
"powershell.exe", "pwsh.dll", "powershell_ise.exe", "WmiPrvSe.exe", "wsmprovhost.exe",
"winrshost.exe")) or
?process.code_signature.trusted == false)] by process.entity_id
[process where host.os.type == "windows" and event.type == "start" and
(process.name : "schtasks.exe" or process.pe.original_file_name == "schtasks.exe") and
process.args : ("/create", "-create") and process.args : ("/RU", "/SC", "/TN", "/TR", "/F", "/XML") and
/* exclude SYSTEM Integrity Level - look for task creations by non-SYSTEM user */
not (?process.Ext.token.integrity_level_name : "System" or ?winlog.event_data.IntegrityLevel : "System")
] by process.parent.entity_id
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Persistence
- ID: TA0003
- Reference URL: https://attack.mitre.org/tactics/TA0003/
-
Technique:
- Name: Scheduled Task/Job
- ID: T1053
- Reference URL: https://attack.mitre.org/techniques/T1053/
-
Sub-technique:
- Name: Scheduled Task
- ID: T1053.005
- Reference URL: https://attack.mitre.org/techniques/T1053/005/