IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
Suspicious PrintSpooler Service Executable File Creation
editSuspicious PrintSpooler Service Executable File Creation
editDetects 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: 5 minutes
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: 4 (version history)
Added (Elastic Stack release): 7.10.0
Last modified (Elastic Stack release): 7.13.0
Rule authors: Elastic
Rule license: Elastic License v2
Rule query
editfile where event.type != "deletion" and process.name : "spoolsv.exe"
and file.extension : ("exe", "dll") and not file.path :
("?:\\Windows\\System32\\spool\\*", "?:\\Windows\\Temp\\*",
"?:\\Users\\*")
Threat mapping
editFramework: 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/
Rule version history
edit- Version 4 (7.13.0 release)
-
-
Updated query, changed from:
event.category:file and not event.type:deletion and process.name:spoolsv.exe and file.extension:(exe or dll) and not file.path:(C\:\\Windows\\System32\\spool\\* or C\:\\Windows\\Temp\\* or C\:\\Users\\*)
-
- Version 3 (7.12.0 release)
-
- Formatting only
- Version 2 (7.11.2 release)
-
- Formatting only