Silver Fox and MODBEACON: new Rust RAT hides C2 traffic via gRPC

Colleagues, I’d like to draw your attention to a cybersecurity update. A report has surfaced on MODBEACON — a new Rust-based RAT linked to Silver Fox.

According to researchers, the malware is distributed through fake installers and SEO poisoning.

Notably, C2 traffic is encrypted, and communication uses gRPC streaming via a CDN.

MODBEACON can load plugins, persist on the system, and execute attacker commands.

Why it matters: such campaigns show how quickly threat actors are increasing the stealth and resilience of their attacks.

In your view, which defenses are most effective today against such infection chains?

#cybersecurity #malware #RAT #ThreatIntel