Suspicious DEEPPOST Data Exfiltration URI Pattern via BrazenBamboo

ATT&CK techniques

Exfiltration

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
- T1041Exfiltration Over C2 Channel
Impact

What it detects

This rule detects HTTP requests to the /api/third/file/upload/ endpoint used by the BrazenBamboo DEEPPOST exfiltration tool to upload stolen files. DEEPPOST posted collected data to attacker infrastructure over a fixed API path. Detecting this URI reveals active data theft from compromised hosts.

Reporting behind it

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Suspicious DEEPPOST Data Exfiltration URI Pattern via BrazenBamboo

Pivot detection · T1041 · 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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