[New Rule] - Print Spooler PrivEsc - Suspicious SPL File Created (#148)

* [New Rule] - Print Spooler PrivEsc - Suspicious SPL File Created * Update privilege_escalation_printspooler_suspicious_spl_file.toml * added ref and changed verb and replaced file.name with file.extension * Update privilege_escalation_printspooler_suspicious_spl_file.toml * Update rules/windows/privilege_escalation_printspooler_suspicious_spl_file.toml Co-authored-by: David French <56409778+threat-punter@users.noreply.github.com> * Update rules/windows/privilege_escalation_printspooler_suspicious_spl_file.toml Co-authored-by: David French <56409778+threat-punter@users.noreply.github.com> * Update rules/windows/privilege_escalation_printspooler_suspicious_spl_file.toml Co-authored-by: David French <56409778+threat-punter@users.noreply.github.com> * Linted and fixed tacttic to privesc * Linted * ref * Update privilege_escalation_printspooler_suspicious_spl_file.toml * Lint rule * Update rules/windows/privilege_escalation_printspooler_suspicious_spl_file.toml Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com> Co-authored-by: David French <56409778+threat-punter@users.noreply.github.com> Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>
2020-09-29 10:17:36 +02:00
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+[metadata]
+creation_date = "2020/08/14"
+ecs_version = ["1.6.0"]
+maturity = "production"
+updated_date = "2020/08/14"
+
+[rule]
+author = ["Elastic"]
+description = """
+Detects attempts to exploit privilege escalation vulnerabilities related to the Print Spooler service including
+CVE-2020-1048 and CVE-2020-1337. .
+"""
+index = ["winlogbeat-*", "logs-endpoint.events.*"]
+language = "kuery"
+license = "Elastic License"
+name = "Suspicious PrintSpooler SPL File Created"
+note = "Refer to CVEs, CVE-2020-1048 and CVE-2020-1337 for further information on the vulnerability and exploit. Verify that the relevant system is patched."
+references = ["https://safebreach.com/Post/How-we-bypassed-CVE-2020-1048-Patch-and-got-CVE-2020-1337"]
+risk_score = 74
+rule_id = "a7ccae7b-9d2c-44b2-a061-98e5946971fa"
+severity = "high"
+tags = ["Elastic", "Windows"]
+type = "query"
+
+query = '''
+event.category:file and not event.type:deletion and
+ file.extension:(spl or SPL) and
+ file.path:C\:\\Windows\\System32\\spool\\PRINTERS\\* and
+ not process.name:(spoolsv.exe or printfilterpipelinesvc.exe or PrintIsolationHost.exe or splwow64.exe or msiexec.exe or poqexec.exe)
+'''
+
+
+[[rule.threat]]
+framework = "MITRE ATT&CK"
+[[rule.threat.technique]]
+id = "T1068"
+name = "Exploitation for Privilege Escalation"
+reference = "https://attack.mitre.org/techniques/T1068/"
+
+
+[rule.threat.tactic]
+id = "TA0004"
+name = "Privilege Escalation"
+reference = "https://attack.mitre.org/tactics/TA0004/"