Malicious Ntospy Network Provider DLL Registration for Credential Capture
- Category
- registry_set
- Author
- HuntRule
- Published
- 2026-07-03
- Updated
- 2026-08-28
ATT&CK techniques
Persistence → Cred AccessRecon
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 registration of a malicious Network Provider DLL under the credman service key, matching the Ntospy credential-stealing component used against organizations in the Middle East, Africa and the US per Unit 42. Registering a rogue authentication package as a network provider lets the actor intercept plaintext logon credentials which enables persistent credential theft.
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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