Suspicious StupidSandwichAgent User-Agent in C2 Traffic by StaryDobry

ATT&CK techniques

C2

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
- T1071.001Web Protocols
Exfiltration
Impact

What it detects

This rule detects outbound HTTP requests carrying the hardcoded StupidSandwichAgent User-Agent string used by the StaryDobry campaign loader. This unusual and unique agent value identifies command-and-control and payload retrieval traffic from the miner dropper. Presence of this User-Agent indicates StaryDobry C2 communication.

Reporting behind it

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Suspicious StupidSandwichAgent User-Agent in C2 Traffic by StaryDobry

Pivot detection · T1071.001 · 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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