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/