credential_access_lsass_memdump_file_created.toml

[metadata]
creation_date = "2020/11/24"
integration = ["endpoint", "windows"]
maturity = "production"
min_stack_comments = "New fields added: required_fields, related_integrations, setup"
min_stack_version = "8.3.0"
updated_date = "2022/12/14"

[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.*", "endgame-*"]
language = "eql"
license = "Elastic License v2"
name = "LSASS Memory Dump Creation"
note = """## Setup

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", "Elastic Endgame"]
timeline_id = "4d4c0b59-ea83-483f-b8c1-8c360ee53c5c"
timeline_title = "Comprehensive File Timeline"
timestamp_override = "event.ingested"
type = "eql"

query = '''
file where file.name : ("lsass*.dmp", "dumpert.dmp", "Andrew.dmp", "SQLDmpr*.mdmp", "Coredump.dmp") and

 not (process.executable : ("?:\\Program Files\\Microsoft SQL Server\\*\\Shared\\SqlDumper.exe", "?:\\Windows\\System32\\dllhost.exe") and
      file.path : ("?:\\Program Files\\Microsoft SQL Server\\*\\Shared\\ErrorDumps\\SQLDmpr*.mdmp",
                   "?:\\*\\Reporting Services\\Logfiles\\SQLDmpr*.mdmp")) and

 not (process.executable : "?:\\WINDOWS\\system32\\WerFault.exe" and
      file.path : "?:\\Windows\\System32\\config\\systemprofile\\AppData\\Local\\CrashDumps\\lsass.exe.*.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/"