Cybersecurity researchers have disclosed details of a phishing campaign that delivers a stealthy banking malware-turned-remote access trojan called MostereRAT. The phishing attack incorporates a number of advanced evasion techniques to gain complete control over compromised systems, siphon sensitive data, and extend its functionality by serving secondary plugins, Fortinet FortiGuard Labs said. "These include the use of an Easy Programming Language (EPL) to develop a staged payload, concealing malicious operations and disabling security tools to prevent alert triggers, securing command-and-control (C2) communications using mutual TLS (mTLS), supporting various methods for deploying additional payloads, and even installing popular remote access tools," Yurren Wan said. EPL is an obscure…