Kernel 2.6 rootkits and the quest for Linux security
BREAKING IN AND KEEPING OUT
Your Linux system may not be so airtight after all. To understand the threats, you need to think like an intruder. We'll show you what the intruders are thinking now about the Linux 2.6 kernel.
Of all the most devilish creations in the history of cyber crime, the rootkit is perhaps the most ingenious. A rootkit is a bundle of tools for the network intruder. An attacker who gains access to a computer can upload the rootkit and use the tools to gain control of the system. One interesting aspect of a rootkit is its ability to cover the intruder’s tracks. Doctored-up versions of common monitoring utilities such as netstat and ps hide any sign of the attack. Many, many rootkits were copied onto many computers around the world. But eventually, developers and security specialists grew wise to the ways of user space rootkits. Experts learned to detect the intruder’s presence by looking behind the standard Unix tools for evidence of changes. But rather than giving up, the intruders went on to something new. The kernel rootkit is a new generation of intrusion tool that weaves itself into the Linux system at a very deep level – below the reach of any userland detection tools. Armed with the kernel rootkit, the intruders again gained the upper hand – at least temporarily.
Buy this article as PDF
(incl. VAT)
Buy Linux Magazine
News
-
Red Hat Enterprise Linux 7.5 Released
The latest release is focused on hybrid cloud.
-
Microsoft Releases a Linux-Based OS
The company is building a new IoT environment powered by Linux.
-
Solomon Hykes Leaves Docker
In a surprise move, Solomon Hykes, the creator of Docker has left the company.
-
Red Hat Celebrates 25th Anniversary with a New Code Portal
The company announces a GitHub page with links to source code for all its projects
-
Gnome 3.28 Released
The latest GNOME rolls out with better contact management and new features for handling virtual machines.
-
Install Firefox in a Snap on Linux
Mozilla has picked the Snap package system to deliver its application to Linux users.
-
OpenStack Queens Released
The new release comes with new features for mission critical workloads.
-
Kali Linux Comes to Windows
The Kali Linux developers even managed to run full blown XFCE desktop via WSL.
-
Ubuntu to Start Collecting Some Data with Ubuntu 18.04
It will be an ‘opt-out’ feature.
-
CNCF Illuminates Serverless Vision
The Cloud Native Computing Foundation announces a paper describing their model for a serverless ecosystem.