Suspicious PowerShell Communication with Dropbox API (via ps_script)

ATT&CK techniques

C2 → Exfiltration

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
- T1102Web Service
Exfiltration
- T1567.002Exfiltration to Cloud Storage
Impact

What it detects

This rule detects PowerShell script content that contacts the Dropbox content API file download endpoint. The DEEP#GOSU campaign abused Dropbox as a staging and exfiltration channel for encrypted payloads and stolen data.

Reporting behind it

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Suspicious PowerShell Communication with Dropbox API (via ps_script)

Pivot detection · T1102 · 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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