Tax Audit Trap: Silver Fox Unleashes “ABCDoor” via Modified Rust Loaders

Kaspersky Labs uncovered a sophisticated Silver Fox phishing campaign (1,600+ emails) that uses modified RustSL loaders and ValleyRAT to deploy a Python backdoor named ABCDoor; the malware provides remote control, multi-monitor screen streaming, data exfiltration, and persistent execution, primarily targeting organizations in India and Russia across industrial, consulting, retail, and transportation sectors.