Justin Ibarra
eeb8ab7744
* 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
Removed changes from:
- rules/cross-platform/impact_hosts_file_modified.toml
- rules/windows/credential_access_lsass_memdump_file_created.toml
- rules/windows/defense_evasion_adding_the_hidden_file_attribute_with_via_attribexe.toml
- rules/windows/defense_evasion_execution_lolbas_wuauclt.toml
- rules/windows/defense_evasion_suspicious_certutil_commands.toml
- rules/windows/execution_command_shell_started_by_svchost.toml
(selectively cherry picked from commit 6bdfddac8e)
53 lines
1.8 KiB
TOML
53 lines
1.8 KiB
TOML
[metadata]
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creation_date = "2021/10/18"
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maturity = "production"
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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 an attempt to reset an account password remotely. Adversaries may manipulate account passwords to maintain
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access or evade password duration policies and preserve compromised credentials.
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"""
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false_positives = ["Legitimate remote account administration."]
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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 = "Account Password Reset Remotely"
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references = [
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"https://docs.microsoft.com/en-us/windows/security/threat-protection/auditing/event-4724",
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"https://stealthbits.com/blog/manipulating-user-passwords-with-mimikatz/",
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"https://github.com/sbousseaden/EVTX-ATTACK-SAMPLES/blob/master/Credential%20Access/remote_pwd_reset_rpc_mimikatz_postzerologon_target_DC.evtx",
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]
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risk_score = 47
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rule_id = "2820c9c2-bcd7-4d6e-9eba-faf3891ba450"
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severity = "medium"
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tags = ["Elastic", "Host", "Windows", "Threat Detection", "Persistence"]
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type = "eql"
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query = '''
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sequence by host.id with maxspan=5m
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[authentication where event.action == "logged-in" and
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/* event 4624 need to be logged */
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winlog.logon.type : "Network" and event.outcome == "success" and source.ip != null and
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source.ip != "127.0.0.1" and source.ip != "::1"] by winlog.event_data.TargetLogonId
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/* event 4724 need to be logged */
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[iam where event.action == "reset-password"] by winlog.event_data.SubjectLogonId
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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 = "T1098"
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reference = "https://attack.mitre.org/techniques/T1098/"
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name = "Account Manipulation"
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[rule.threat.tactic]
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id = "TA0003"
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reference = "https://attack.mitre.org/tactics/TA0003/"
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name = "Persistence"
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