Justin Ibarra
59da2da474
* add unit tests to ensure host type and platform are included * add host.os.name 'linux' to all linux rules * add host.os.name macos to mac rules * add host.os.name to windows rules; fix linux dates * update from host.os.name to host.os.type Co-authored-by: brokensound77 <brokensound77@users.noreply.github.com> Co-authored-by: Jonhnathan <26856693+w0rk3r@users.noreply.github.com>
70 lines
2.8 KiB
TOML
70 lines
2.8 KiB
TOML
[metadata]
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creation_date = "2023/01/22"
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integration = ["windows"]
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maturity = "production"
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min_stack_comments = "New fields added: required_fields, related_integrations, setup"
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min_stack_version = "8.3.0"
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updated_date = "2023/02/22"
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[rule]
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author = ["Elastic"]
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description = """
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Identifies access attempts to LSASS handle, this may indicate an attempt to dump credentials from Lsass memory.
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"""
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from = "now-9m"
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index = ["winlogbeat-*", "logs-windows.*"]
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language = "eql"
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license = "Elastic License v2"
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name = "Suspicious Lsass Process Access"
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note = """## Setup
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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://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1003.001/T1003.001.md"]
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risk_score = 47
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rule_id = "128468bf-cab1-4637-99ea-fdf3780a4609"
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severity = "medium"
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tags = ["Elastic", "Host", "Windows", "Threat Detection", "Credential Access", "Sysmon Only"]
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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 host.os.type == "windows" and event.code == "10" and
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winlog.event_data.TargetImage : "?:\\WINDOWS\\system32\\lsass.exe" and
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not winlog.event_data.GrantedAccess :
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("0x1000", "0x1400", "0x101400", "0x101000", "0x101001", "0x100000", "0x100040", "0x3200", "0x40", "0x3200") and
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not process.name : ("procexp64.exe", "procmon.exe", "procexp.exe", "Microsoft.Identity.AadConnect.Health.AadSync.Host.ex") and
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not process.executable :
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("?:\\Windows\\System32\\lsm.exe",
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"?:\\Program Files\\*",
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"?:\\Program Files (x86)\\*",
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"?:\\Windows\\System32\\msiexec.exe",
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"?:\\Windows\\CCM\\CcmExec.exe",
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"?:\\Windows\\system32\\csrss.exe",
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"?:\\Windows\\system32\\wininit.exe",
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"?:\\Windows\\system32\\wbem\\wmiprvse.exe",
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"?:\\Windows\\system32\\MRT.exe",
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"?:\\ProgramData\\Microsoft\\Windows Defender\\platform\\*",
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"?:\\ProgramData\\WebEx\\webex\\*",
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"?:\\Windows\\LTSvc\\LTSVC.exe") and
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not winlog.event_data.CallTrace : ("*mpengine.dll*", "*appresolver.dll*", "*sysmain.dll*")
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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.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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