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ControlPuc v0: A HID Injection Framework with RP2350

Jul 2026 · International Journal of Research in Engineering, Science and Management · Vol 9, pp. 31-34 · 0 citations

TL;DR

ControlPuc v0 is presented, a stealth-oriented hardware-software framework designed to evaluate endpoint resilience against advanced HID emulation attacks, and highlights critical weaknesses in current heuristic endpoint defense mechanisms.

Abstract

Modern endpoint security systems can easily detect and block non-standard USB Human Interface Devices (HIDs), limiting the effectiveness of hardware-based penetration testing tools. This paper presents ControlPuc v0, a stealth-oriented hardware-software framework designed to evaluate endpoint resilience against advanced HID emulation attacks. Built on the RP2350 microcontroller with a custom micro-runtime [7], the system uses a physical pin-voltage interlock to switch between maintenance and stealth modes. To evade forensic detection, low-level firmware modifications disable Mass Storage Class descriptors, preventing automatic drive enumeration by Data Loss Prevention (DLP) systems. An anthropomorphic input engine introduces deterministic 5 ms delays between USB transactions to mimic human interaction and evade behavioral analysis. Additionally, an asynchronous outbound HTTP pull-based communication model enables reliable remote orchestration while bypassing stateful network restrictions. The framework highlights critical weaknesses in current heuristic endpoint defense mechanisms.

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