[New Rule] Privilege Escalation via Rogue Named Pipe Impersonation (#1544)

* [New Rule] Privilege Escalation via Rogue Named Pipe Impersonation * Update rules/windows/privilege_escalation_via_rogue_named_pipe.toml Co-authored-by: Jonhnathan <jonhnathancesar@gmail.com> * Update privilege_escalation_via_rogue_named_pipe.toml * Update rules/windows/privilege_escalation_via_rogue_named_pipe.toml Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com> Co-authored-by: Jonhnathan <jonhnathancesar@gmail.com> Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>
2021-12-08 11:21:04 +01:00
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+[metadata]
+creation_date = "2021/10/13"
+maturity = "production"
+updated_date = "2021/10/13"
+
+[rule]
+author = ["Elastic"]
+description = """
+Identifies a privilege escalation attempt via rogue named pipe impersonation. An adversary may abuse this technique by
+masquerading as a known named pipe and manipulating a privileged process to connect to it.
+"""
+from = "now-9m"
+index = ["winlogbeat-*", "logs-windows.*"]
+language = "eql"
+license = "Elastic License v2"
+name = "Privilege Escalation via Rogue Named Pipe Impersonation"
+note = """## Config
+
+Named Pipe Creation Events need to be enabled within the Sysmon configuration by including the following settings:
+`condition equal "contains" and keyword equal "pipe"`
+"""
+references = [
+    "https://itm4n.github.io/printspoofer-abusing-impersonate-privileges/",
+    "https://github.com/zcgonvh/EfsPotato",
+    "https://twitter.com/SBousseaden/status/1429530155291193354"
+]
+risk_score = 73
+rule_id = "76ddb638-abf7-42d5-be22-4a70b0bf7241"
+severity = "high"
+tags = ["Elastic", "Host", "Windows", "Threat Detection", "Privilege Escalation"]
+timestamp_override = "event.ingested"
+type = "eql"
+
+query = '''
+file where event.action : "Pipe Created*" and
+ /* normal sysmon named pipe creation events truncate the pipe keyword */
+  file.name : "\\*\\Pipe\\*"
+'''
+
+
+[[rule.threat]]
+framework = "MITRE ATT&CK"
+[[rule.threat.technique]]
+id = "T1134"
+reference = "https://attack.mitre.org/techniques/T1134/"
+name = "Access Token Manipulation"
+
+
+[rule.threat.tactic]
+id = "TA0004"
+reference = "https://attack.mitre.org/tactics/TA0004/"
+name = "Privilege Escalation"
+