Language Selection

English French German Italian Portuguese Spanish

Linux under attack: Compromised SSH keys lead to rootkit

Filed under
Linux
Security

The U.S. Computer Emergency Readiness Team (CERT) has issued a warning for what it calls “active attacks” against Linux-based computing infrastructures using compromised SSH keys.

The attack appears to initially use stolen SSH keys to gain access to a system, and then uses local kernel exploits to gain root access. Once root access has been obtained, a rootkit known as "phalanx2" is installed, US-CERT said in a note on its current activity site.

Phalanx, which dates back to 2005, is a self-injecting kernel rootkit designed for the Linux 2.6 branch. It allows an attacker to hide files, processes and sockets and includes a tty sniffer, a tty connectback-backdoor, and auto injection on boot.

More Here




More in Tux Machines

6 Reasons Your Favorite Linux OS Is Plagued by Bugs

  • 6 Reasons Your Favorite Linux OS Is Plagued by Bugs
  • I’ve been a long-time GNOME user, but for the past few months, I was in a loving relationship with Elementary OS. I found much to love in the minimalist Linux-based operating system, and I encouraged readers to give it a try. But that has changed. The number of bugs I encountered grew over time, and I’ve recently had enough. As a freelance writer, the only thing I need is a working laptop. If that’s not reliable, then I’m wasting time trying to fix the one tool my job requires.
  • Why do Linux distributions have software bugs?
    Linux is one of the best operating systems around, but no OS is perfect. All operating systems end up having bugs of one kind or another, including your favorite Linux distributions. A writer at MakeUseOf has listed six reasons why Linux distributions often have their share of bugs.

today's howtos

Linux and Linux Foundation

Red Hat and Fedora