Brent Murphy
414d320276
* Update persistence_local_scheduled_task_commands.toml Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com> Co-authored-by: Samirbous <64742097+Samirbous@users.noreply.github.com>
58 lines
2.1 KiB
TOML
58 lines
2.1 KiB
TOML
[metadata]
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creation_date = "2020/02/18"
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maturity = "production"
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updated_date = "2021/03/15"
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[rule]
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author = ["Elastic"]
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description = "A scheduled task can be used by an adversary to establish persistence, move laterally, and/or escalate privileges."
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false_positives = ["Legitimate scheduled tasks may be created during installation of new software."]
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from = "now-9m"
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index = ["winlogbeat-*", "logs-endpoint.events.*", "logs-windows.*"]
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language = "eql"
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license = "Elastic License v2"
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name = "Local Scheduled Task Creation"
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risk_score = 21
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rule_id = "afcce5ad-65de-4ed2-8516-5e093d3ac99a"
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severity = "low"
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tags = ["Elastic", "Host", "Windows", "Threat Detection", "Persistence"]
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timestamp_override = "event.ingested"
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type = "eql"
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query = '''
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sequence with maxspan=1m
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[process where event.type != "end" and
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((process.name : ("cmd.exe", "wscript.exe", "rundll32.exe", "regsvr32.exe", "wmic.exe", "mshta.exe",
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"powershell.exe", "pwsh.exe", "WmiPrvSe.exe", "wsmprovhost.exe", "winrshost.exe") or
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process.pe.original_file_name : ("cmd.exe", "wscript.exe", "rundll32.exe", "regsvr32.exe", "wmic.exe", "mshta.exe",
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"powershell.exe", "pwsh.exe", "WmiPrvSe.exe", "wsmprovhost.exe",
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"winrshost.exe")) or
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process.code_signature.trusted == false)] by process.entity_id
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[process where event.type == "start" and
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(process.name : "schtasks.exe" or process.pe.original_file_name == "schtasks.exe") and
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process.args : ("/create", "-create") and process.args : ("/RU", "/SC", "/TN", "/TR", "/F", "/XML") and
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/* exclude SYSTEM SIDs - look for task creations by non-SYSTEM user */
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not user.id : ("S-1-5-18", "S-1-5-19", "S-1-5-20")] by process.parent.entity_id
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'''
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[[rule.threat]]
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framework = "MITRE ATT&CK"
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[[rule.threat.technique]]
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id = "T1053"
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name = "Scheduled Task/Job"
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reference = "https://attack.mitre.org/techniques/T1053/"
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[[rule.threat.technique.subtechnique]]
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id = "T1053.005"
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name = "Scheduled Task"
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reference = "https://attack.mitre.org/techniques/T1053/005/"
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[rule.threat.tactic]
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id = "TA0003"
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name = "Persistence"
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reference = "https://attack.mitre.org/tactics/TA0003/"
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