VVS Discord Stealer Using Pyarmor for Obfuscation and Detection Evasion

This report provides a technical analysis of VVS stealer (aka VVS $tealer), a Pyarmor-obfuscated Python infostealer marketed on Telegram that targets Discord users and numerous Chromium- and Firefox-based browsers to exfiltrate tokens, credentials, cookies, history and autofill data; it also injects an obfuscated JavaScript payload into the Discord Electron application to hijack sessions, achieves persistence via the Startup folder, displays a fake fatal error, and uses AES-based protections and BCC-mode compiled components to evade analysis. The analysis includes decompilation and deobfuscation methodology, cryptographic details, example IOCs (SHA-256 hashes and Discord webhook URLs), and recommended protections and incident response contacts.