I StealC You: Tracking the Rapid Changes To StealC

This report presents a technical analysis of StealC V2, an actively developed information-stealer that uses Themida packing, RC4-encrypted strings and C2 traffic, and a control-panel-embedded builder; it details features such as browser and wallet theft, screenshot capture, EXE/MSI/PowerShell payload execution, C2 JSON protocol and opcodes, RC4 key handling, and builder/panel behaviors (including loader rules, Telegram integration, and update packaging).