Suspicious Ousaban Persistence via Financeiro Run Registry Value (via registry_set)

ATT&CK techniques

Persistence → Priv Esc

Recon
Resource Dev
Initial Access
Execution
Persistence
- T1547.001Registry Run Keys / Startup Folder
Priv Esc
- T1547.001Registry Run Keys / Startup Folder
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects the Ousaban banking trojan establishing autostart persistence by creating a Run key value named Financeiro under the CurrentVersion Run key that launches its payload from a hardcoded path. The Portuguese value name is specific to this Iberian campaign. Any such value indicates the trojan.

Reporting behind it

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Suspicious Ousaban Persistence via Financeiro Run Registry Value (via registry_set)

Pivot detection · T1547.001 · 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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