Suspicious CoffeeLoader C2 Beacon With Spoofed iPhone User-Agent (via proxy)

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 HTTPS beacons that present the hardcoded Apple iPhone user-agent string used by CoffeeLoader when communicating with its command and control infrastructure. Desktop originated traffic carrying this mobile Safari agent is anomalous.

Reporting behind it

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Suspicious CoffeeLoader C2 Beacon With Spoofed iPhone User-Agent (via proxy)

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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