Malicious DLL Sideload from Public Music Directory

ATT&CK techniques

Execution → Defense Evasion

Recon
Resource Dev
Initial Access
Execution
- T1574.001DLL
Persistence
- T1574.001DLL
Priv Esc
- T1574.001DLL
Defense Evasion
- T1574.001DLL
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects loading of package.dll from the C Users Public Music directory used for DLL sideloading. This behavior matches Ivanti CVE-2025-0282 post-exploitation where operators staged package.dll in a public path to be sideloaded by a signed host process. DLLs loaded from world-writable public folders are a hallmark of sideloading based defense evasion.

Reporting behind it

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Malicious DLL Sideload from Public Music Directory

Pivot detection · T1574.001 · 9 related

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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