Files
sigma-rules/rules/windows/execution_suspicious_psexesvc.toml
T
Justin Ibarra 90a9320f93 [Rule Tuning] Remove timestamp_override for endgame-* promotion rules (#951)
* remove timestamp_override from endgame promotion rules
* updated version.lock to previous state for endgame promotion rule changes
* fix incorrect year in updated_date
2021-02-17 13:48:57 -09:00

48 lines
1.2 KiB
TOML

[metadata]
creation_date = "2020/08/14"
maturity = "production"
updated_date = "2021/02/16"
[rule]
author = ["Elastic"]
description = """
Identifies suspicious psexec activity which is executing from the psexec service that has been renamed, possibly to
evade detection.
"""
from = "now-9m"
index = ["winlogbeat-*", "logs-endpoint.events.*"]
language = "eql"
license = "Elastic License"
name = "Suspicious Process Execution via Renamed PsExec Executable"
risk_score = 47
rule_id = "e2f9fdf5-8076-45ad-9427-41e0e03dc9c2"
severity = "medium"
tags = ["Elastic", "Host", "Windows", "Threat Detection", "Execution"]
timestamp_override = "event.ingested"
type = "eql"
query = '''
process where event.type in ("start", "process_started", "info") and
process.pe.original_file_name : "psexesvc.exe" and not process.name : "PSEXESVC.exe"
'''
[[rule.threat]]
framework = "MITRE ATT&CK"
[[rule.threat.technique]]
id = "T1569"
name = "System Services"
reference = "https://attack.mitre.org/techniques/T1569/"
[[rule.threat.technique.subtechnique]]
id = "T1569.002"
name = "Service Execution"
reference = "https://attack.mitre.org/techniques/T1569/002/"
[rule.threat.tactic]
id = "TA0002"
name = "Execution"
reference = "https://attack.mitre.org/tactics/TA0002/"