Suspicious Lazarus SIGNBT Loader Configuration Artifacts wpd Files (via file_event)
- Product
- windows
- Category
- file_event
- Author
- HuntRule
- Published
- 2026-05-03
- Updated
- 2026-08-28
ATT&CK techniques
Defense EvasionRecon
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 creation of the external configuration and payload container files wpd.ini, wpd.mmf and wpd.bin that the Lazarus SIGNBT loader drops beside its side-loaded DLLs to hold AES-encrypted C2 proxy lists and payloads. These distinctively named artifacts accompany the loader on disk, making their appearance a useful indicator of a SIGNBT deployment.
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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