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sigma-rules/rules/windows/credential_access_lsass_memdump_file_created.toml
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TOML

[metadata]
creation_date = "2020/11/24"
maturity = "production"
updated_date = "2022/03/31"
[rule]
author = ["Elastic"]
description = """
Identifies the creation of a Local Security Authority Subsystem Service (lsass.exe) default memory dump. This may
indicate a credential access attempt via trusted system utilities such as Task Manager (taskmgr.exe) and SQL Dumper
(sqldumper.exe) or known pentesting tools such as Dumpert and AndrewSpecial.
"""
from = "now-9m"
index = ["winlogbeat-*", "logs-endpoint.events.*", "logs-windows.*"]
language = "eql"
license = "Elastic License v2"
name = "LSASS Memory Dump Creation"
note = """## Config
If enabling an EQL rule on a non-elastic-agent index (such as beats) for versions <8.2, events will not define `event.ingested` and default fallback for EQL rules was not added until 8.2, so you will need to add a custom pipeline to populate `event.ingested` to @timestamp for this rule to work.
"""
references = ["https://github.com/outflanknl/Dumpert", "https://github.com/hoangprod/AndrewSpecial"]
risk_score = 73
rule_id = "f2f46686-6f3c-4724-bd7d-24e31c70f98f"
severity = "high"
tags = ["Elastic", "Host", "Windows", "Threat Detection", "Credential Access"]
timestamp_override = "event.ingested"
type = "eql"
query = '''
file where file.name : ("lsass*.dmp", "dumpert.dmp", "Andrew.dmp", "SQLDmpr*.mdmp", "Coredump.dmp")
'''
[[rule.threat]]
framework = "MITRE ATT&CK"
[[rule.threat.technique]]
id = "T1003"
name = "OS Credential Dumping"
reference = "https://attack.mitre.org/techniques/T1003/"
[[rule.threat.technique.subtechnique]]
id = "T1003.001"
name = "LSASS Memory"
reference = "https://attack.mitre.org/techniques/T1003/001/"
[rule.threat.tactic]
id = "TA0006"
name = "Credential Access"
reference = "https://attack.mitre.org/tactics/TA0006/"