Justin Ibarra
6bdfddac8e
* Expand timestamp_override tests * removed timestamp_override from eql sequence rules * add config entry for eql rules with beats index and t_o * add timestamp_override to missing fields
69 lines
2.7 KiB
TOML
69 lines
2.7 KiB
TOML
[metadata]
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creation_date = "2020/11/24"
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maturity = "production"
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min_stack_comments = "EQL regex syntax introduced in 7.12"
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min_stack_version = "7.12.0"
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updated_date = "2022/03/31"
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[rule]
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author = ["Elastic"]
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description = """
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Identifies the execution of known Windows utilities often abused to dump LSASS memory or the Active Directory database
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(NTDS.dit) in preparation for credential access.
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"""
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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 = "Potential Credential Access via Windows Utilities"
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note = """## Config
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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.
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"""
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references = ["https://lolbas-project.github.io/"]
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risk_score = 73
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rule_id = "00140285-b827-4aee-aa09-8113f58a08f3"
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severity = "high"
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tags = ["Elastic", "Host", "Windows", "Threat Detection", "Credential Access"]
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timestamp_override = "event.ingested"
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type = "eql"
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query = '''
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process where event.type in ("start", "process_started") and
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/* update here with any new lolbas with dump capability */
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(process.pe.original_file_name == "procdump" and process.args : "-ma") or
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(process.name : "ProcessDump.exe" and not process.parent.executable regex~ """C:\\Program Files( \(x86\))?\\Cisco Systems\\.*""") or
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(process.pe.original_file_name == "WriteMiniDump.exe" and not process.parent.executable regex~ """C:\\Program Files( \(x86\))?\\Steam\\.*""") or
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(process.pe.original_file_name == "RUNDLL32.EXE" and (process.args : "MiniDump*" or process.command_line : "*comsvcs.dll*#24*")) or
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(process.pe.original_file_name == "RdrLeakDiag.exe" and process.args : "/fullmemdmp") or
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(process.pe.original_file_name == "SqlDumper.exe" and process.args : "0x01100*") or
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(process.pe.original_file_name == "TTTracer.exe" and process.args : "-dumpFull" and process.args : "-attach") or
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(process.pe.original_file_name == "ntdsutil.exe" and process.args : "create*full*") or
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(process.pe.original_file_name == "diskshadow.exe" and process.args : "/s")
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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 = "T1003"
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name = "OS Credential Dumping"
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reference = "https://attack.mitre.org/techniques/T1003/"
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[[rule.threat.technique.subtechnique]]
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id = "T1003.001"
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name = "LSASS Memory"
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reference = "https://attack.mitre.org/techniques/T1003/001/"
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[[rule.threat.technique.subtechnique]]
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id = "T1003.003"
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name = "NTDS"
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reference = "https://attack.mitre.org/techniques/T1003/003/"
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[rule.threat.tactic]
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id = "TA0006"
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name = "Credential Access"
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reference = "https://attack.mitre.org/tactics/TA0006/"
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