Cato Networks tracked Poisson using OpenSSH and Tailscale to maintain access after Havoc C2 outage in a 33-day intrusion.

ESET researchers have discovered SprySOCKS for Windows, FishMonger’s backdoor weaponizing a kernel driver for advanced ...

Microsoft released its first full Linux distro: Azure Linux 4.0. Azure Linux ix split into Azure Container Linux and the virtual machine edition. Microsoft effectively admits that it's a de facto ...

I'd like to thank my co-author, Martin Zugec, for his valuable contributions to this report. This intrusion adds three dimensions to the public understanding of Chinese APT activity in contested ...

Tracked as CVE-2026-31431 with a CVSS score of 7.8, Copy Fail was uncovered and named by researchers at Xint.io and Theori. The flaw allows an unprivileged local user to write four controlled bytes ...

Publicly released exploit code for an effectively unpatched vulnerability that gives root access to virtually all releases of Linux is setting off alarm bells as defenders scramble to ward off severe ...

Linux has long been known as the operating system of developers and power users, but today it’s far more accessible than ever before. Thanks to user-friendly distributions that prioritize simplicity, ...

PCWorld’s guide helps users navigate the overwhelming choice of approximately 250 Linux distributions by focusing on five main strains: Debian, Red Hat/Fedora, Arch, Slackware, and Gentoo.

Abstract: Signal handling has been an integral part of UNIX systems since the earliest implementation in the 1970s. Nowadays, we find signals in all common flavors of UNIX systems, including BSD, ...

Linux places no special demands on hardware, so there are generally no limitations when choosing a Linux system. Even more feature-rich desktop distributions like Ubuntu with the Gnome desktop, ...

Shellcode injection is a technique often used in exploitation scenarios to execute arbitrary code within a target process. In this write-up, we'll walk through a lab exercise where we successfully ...

Abstract: Shellcodes are malicious code fragments which are usually executed after exploitation of particular vulnerability. Such shellcodes can be packed within a binary in a form of payload and ...