Malicious TELEPUZ DLL Persistence via Masqueraded Loader in User Path

ATT&CK techniques

Persistence → Defense Evasion

Recon
Resource Dev
Initial Access
Execution
Persistence
- T1547Boot or Logon Autostart Execution
Priv Esc
- T1547Boot or Logon Autostart Execution
Defense Evasion
- T1036.005Match Legitimate Resource Name or Location
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects TELEPUZ writing its loader DLLs with system-sounding names into user-writable AppData or ProgramData locations. Legitimate components with these names live under System32, so the same filenames in a profile directory signal masquerading. This combination of trusted-looking name and wrong path exposes the DLL persistence.

Reporting behind it

Related detections9 linkedT1036.005 — drag to rearrange

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Suspicious Csrss Process Masquerading Outside System32 (via process_creation)

Suspicious Mimilite Credential Dumper Execution Writing KB-Named Output

Malicious TELEPUZ DLL Persistence via Masqueraded Loader in User Path

Pivot detection · T1036.005 · 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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