Tagged: System Calls

November 27, 2025

RingReaper: Stealthy Linux Agent Abuses io_uring to Bypass EDR System Call Monitoring

RingReaper is a simple post-exploitation agent for Linux designed for those who need to operate stealthily, minimizing the chances of being detected by EDR solutions. The idea behind this project was to leverage io_uring, the new...

Malware

July 8, 2025

RingReaper: New Linux Tool Leverages io_uring Kernel Feature to Bypass EDR & Stealthily Control Systems

The emergence of a new tool known as RingReaper has sparked concern among cybersecurity experts and penetration testing teams alike. This program leverages a legitimate yet highly potent Linux kernel feature called io_uring to...