[New Rule] UAC Bypass via Windows Firewall Snap-in Hijack (#376)

* [New Rule] Bypass UAC via Windows Firewall Snap-in Hijack * Delete workspace.xml * Update privilege_escalation_uac_bypass_winfw_mmc_hijack.toml * Update privilege_escalation_uac_bypass_winfw_mmc_hijack.toml * Update rules/windows/privilege_escalation_uac_bypass_winfw_mmc_hijack.toml Co-authored-by: David French <56409778+threat-punter@users.noreply.github.com> * Update rules/windows/privilege_escalation_uac_bypass_winfw_mmc_hijack.toml Co-authored-by: David French <56409778+threat-punter@users.noreply.github.com> * Update rules/windows/privilege_escalation_uac_bypass_winfw_mmc_hijack.toml Co-authored-by: David French <56409778+threat-punter@users.noreply.github.com> Co-authored-by: David French <56409778+threat-punter@users.noreply.github.com>
2020-11-18 20:36:59 +01:00
parent 75ed0f8f92
commit 3e7be55a24
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+[metadata]
+creation_date = "2020/10/14"
+ecs_version = ["1.6.0"]
+maturity = "production"
+updated_date = "2020/10/14"
+
+[rule]
+author = ["Elastic"]
+description = """
+Identifies attempts to bypass User Account Control (UAC) by hijacking the Microsoft Management Console (MMC) Windows
+Firewall snap-in. Attackers bypass UAC to stealthily execute code with elevated permissions.
+"""
+from = "now-9m"
+index = ["winlogbeat-*", "logs-endpoint.events.*"]
+language = "eql"
+license = "Elastic License"
+name = "UAC Bypass via Windows Firewall Snap-In Hijack"
+references = ["https://github.com/AzAgarampur/byeintegrity-uac"]
+risk_score = 47
+rule_id = "1178ae09-5aff-460a-9f2f-455cd0ac4d8e"
+severity = "medium"
+tags = ["Elastic", "Host", "Windows", "Threat Detection", "Privilege Escalation"]
+type = "eql"
+
+query = '''
+process where event.type in ("start", "process_started") and
+ process.parent.name == "mmc.exe" and
+ /* process.Ext.token.integrity_level_name == "high" can be added in future for tuning */
+ /* args of the Windows Firewall SnapIn */
+  process.parent.args == "WF.msc" and process.name != "WerFault.exe"
+'''
+
+
+[[rule.threat]]
+framework = "MITRE ATT&CK"
+[[rule.threat.technique]]
+id = "T1088"
+name = "Bypass User Account Control"
+reference = "https://attack.mitre.org/techniques/T1088/"
+
+
+[rule.threat.tactic]
+id = "TA0004"
+name = "Privilege Escalation"
+reference = "https://attack.mitre.org/tactics/TA0004/"