Executive Summary
The article discusses the Keystroke Reflection attack, which is a new side-channel exfiltration technique developed by Hak5. This method evades traditional security measures like firewalls and air-gaps by using keyboard-computer architecture to transmit sensitive information. The key points include:
The target system can accept keystroke input from multiple HID devices.
By leveraging the inherent characteristics of USB Rubber Ducky's USB HID OUT endpoint, it can reflect caps lock, num lock, and scroll lock keys to bypass traditional security controls.
Keystroke Reflection is particularly useful for exfiltrating data on air-gapped networks where standard network communication is not feasible.
Facts Only
Full Take
The article presents the following perspective:
The Keystroke Reflection technique is a novel method for bypassing endpoint restrictions by utilizing keyboard-computer architecture, which was developed by Hak5 specifically for their product line. It demonstrates the potential vulnerabilities in existing security measures and highlights how traditional methods of data exfiltration can be circumvented through this innovative approach.
From the original · Hak5 Blog
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Sentinel — Likely Synthetic
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