Malicious Print Spooler Privilege Escalation via Printer Added - CVE-2020-1048 (via powershell)
- Product
- windows
- Service
- powershell
- Author
- HuntRule
- Published
- 2026-07-30
- Updated
- 2026-08-28
ATT&CK techniques
Persistence → Priv EscRecon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact
What it detects
This rule detects abuse the printer spooler features to load a DLL. The attack is composed by 4 steps > 1) create a printer that points to a missing DLL 2) print to that port 3) crash the printer spool 4) have his original DLL registered for privilege escalation.
Reporting behind it
Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.
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Also included
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