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5438

Reversing a MacOS Kernel Extension

In my last post I covered the basics of kernel debugging in macOS. In this post we will put some of that to use and work through the process of reversing a macOS kernel module. As I said in my last post, in macOS there is a kernel module named “Don’t Steal Mac OS X” (DSMOS) which registers a function with the Mach-O…

5442

Qubes OS 4.0 has been released

After nearly two years in development and countless hours of testing, we’re pleased to announce the stable release of Qubes OS 4.0! Major changes in version 4.0 Version 4.0 includes several fundamental improvements to the security and functionality of Qubes OS: The Qubes Admin API Qubes...

5450

Who and what is Coinhive?

Multiple security firms recently identified cryptocurrency mining service Coinhive as the top malicious threat to Web users, thanks to the tendency for Coinhive’s computer code to be used on hacked Web sites to steal the processing power of its visitors’ devices. This post looks at how Coinhive vaulted to the top of…