Rootkits


New Linux Rootkit Emerges

A new Linux rootkit has emerged and researchers who have analyzed its code and operation say that the malware appears to be a custom-written tool designed to inject iframes into Web sites and drive traffic to malicious sites for drive-by download attacks. The rootkit is designed specifically for 64-bit Linux systems, and while it has some interesting features, it does not appear to be the work of high-level programmer or be meant for use in targeted attacks. 

RSA 2011: Winning the War But Losing Our Soul

There was lots of noise and distraction on the crowded Expo floor of the RSA Security Conference this year. After a grueling couple of years, vendors were back in force with big booths, big news and plenty of entertainment designed to attract visitor traffic. Wandering the floor, I saw – variously – magic tricks, a man walking on stilts, a whack-a-mole game, a man dressed in a full suit of armor and a 15 foot long racetrack that I would have killed for when I was 10.


The ZeroAccess rootkit isn’t the most well-known or closely watched piece of malware in recent history, but, as an extremely detailed new analysis of the program shows, it is a perfect example of the kind of sophisticated malware that attack crews are using to maintain persistent, silent access to compromised machines.

LAS VEGAS–Security technology and practice have advanced quite a bit in the past few years, but one thing that has become clear is that whatever gains have been made are just not keeping pace with the innovation of attackers. The advances being made by malware authors and crimeware gangs are keeping them well ahead of the curve and will continue to do so for the foreseeable future, researchers say.

A large scale SQL injection attack has injected a malicious iframe on
tens of thousands of susceptible websites; The
injected iframe loads malicious content from 318x.com, which eventually
leads to the installation of a rootkit-enabled variant of the Buzus
backdoor trojan. Read the full article. [Help Net Security]

Research between North Carolina State and Microsoft has garnered a way to better isolate and centralize kernels–up to 6,000 different kernel hooks–and has stopped nine rootkits. The tool is called HookSafe and runs on Ubuntu Linux 8.04 and uses hardware-based memory. At issue is whether other rootkit technology can bypass this tool, says one rootkit expert. The one hitch so far appears to be a 6 percent performance hit.  Read the full article. [Dark Reading]

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