Suspicious PrintSpooler Service Executable File Creationedit
Detects attempts to exploit privilege escalation vulnerabilities related to the Print Spooler service. For more information refer to the following CVE’s - CVE-2020-1048, CVE-2020-1337 and CVE-2020-1300 and verify that the impacted system is patched.
Rule type: eql
Rule indices:
- winlogbeat-*
- logs-endpoint.events.*
- logs-windows.*
Severity: high
Risk score: 73
Runs every: 5m
Searches indices from: now-9m (Date Math format, see also Additional look-back time
)
Maximum alerts per execution: 100
References:
Tags:
- Elastic
- Host
- Windows
- Threat Detection
- Privilege Escalation
Version: 101
Rule authors:
- Elastic
Rule license: Elastic License v2
Investigation guideedit
Rule queryedit
file where event.type == "creation" and process.name : "spoolsv.exe" and file.extension : "dll" and file.path : ("?:\\Windows\\System32\\*", "?:\\Windows\\SysWOW64\\*") and not file.path : ("?:\\WINDOWS\\SysWOW64\\PrintConfig.dll", "?:\\WINDOWS\\system32\\x5lrs.dll", "?:\\WINDOWS\\sysWOW64\\x5lrs.dll", "?:\\WINDOWS\\system32\\PrintConfig.dll")
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Privilege Escalation
- ID: TA0004
- Reference URL: https://attack.mitre.org/tactics/TA0004/
-
Technique:
- Name: Exploitation for Privilege Escalation
- ID: T1068
- Reference URL: https://attack.mitre.org/techniques/T1068/