VVS Stealer Uses PyArmor Obfuscation to Evade Static Analysis and Signature Detection

VVS Stealer is a Python-based information-stealing malware marketed on Telegram that leverages PyArmor (v9.1.4 Pro) and PyInstaller to encrypt and hide bytecode (using AES-128-CTR and BCC mode) to evade static analysis; after deobfuscation the malware is shown to steal Discord tokens (via DPAPI decryption), inject obfuscated JavaScript into Discord sessions, exfiltrate browser cookies, history and autofill passwords across ~20 browsers, and maintain persistence via the Windows Startup folder while distracting users with a fake error message — defenders are advised to rely on behavioral analysis and endpoint protection rather than static signatures.