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BTR Reforged: Weaponizing Defender’s Remediation Driver as a Kernel Operation Primitive

**Research by: Jiří Vinopal** **(**@vinopaljiri **)** What if a **trusted security component** could be repurposed into an **attacker-controlled** kernel primitive? What if a **signed Microsoft remediation driver** could be instructed to execute arbitrary **file** and **registry** operations from **Ring 0** – **without** exploits, vulnerabilities, or memory corruption? In this publication, […]

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[Initial Disclosure] AMD | ZEN 1

### Uh oh! There was an error while loading. Please reload this page. / **security-research** Public # [Initial Disclosure] AMD | ZEN 1 ## Package tbd ## Affected versions tbd ## Patched versions tbd ## Description ### Affected Vendor / Project: AMD ### Affected Product: Zen 1 CPU ### Private […]

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Thousands of Hacked WordPress Sites, One Operation: Unmasking StopAndProtect

Research by: Jaromír Hořejší (@JaromirHorejsi) We first noticed a ransomware family called StopAndProtect in the middle of May 2026. Further analysis of the infrastructure reveals that the infection chain starts with a ClickFix social-engineering technique, which prompts victims to execute a PowerShell command. This leads to two stages of additional […]

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