Suspicious COLDRIVER Fileless Payload Storage in Explorer CLSID DefaultIcon (via registry_set)
- Product
- windows
- Category
- registry_set
- Author
- HuntRule
- Published
- 2026-05-21
- 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 registry writes storing encrypted payload data in the Explorer CLSID DefaultIcon subkey using the EnthusiastMode and QatItems values as done by the COLDRIVER SIMPLEFIX loader. Storing binary blobs in this location is a fileless evasion technique.
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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