Linux worm targets ICS

Industrial control systems could feel the affect of a new Linux worm that exploits a PHP vulnerability. In addition to ICSes, other devices connected to the Internet, such as routers, set-top boxes, and security cameras could also fall victim.

03/19/2014


The malware spreads by exploiting a PHP vulnerability patched back in May 2012, said researchers at Symantec. The developer used proof-of concept code published in October to create the worm PLE1403_WEB_NEWS_Linux_v2Symantec called Darlloz. 

“Upon execution, the worm generates IP addresses randomly, accesses a specific path on the machine with well-known ID and passwords, and sends HTTP POST requests, which exploit the vulnerability. If the target is unpatched, it downloads the worm from a malicious server and starts searching for its next target,” Symantec’s Kaoru Hayashi said in a blog post.

The variant analyzed by Symantec can infect only devices running on Intel architectures. However, researchers have also spotted versions for other architectures as well, including MIPS, PPC and ARM. 

Researchers said while they haven’t spotted any Darlloz attacks in the wild, a large number of users who don’t even realize their devices are running Linux are at risk. 

Symantec recommends users to check all their devices connected to the network and make sure they update their software. 

This article originally appeared here: http://www.isssource.com/linux-worm-targets-ics/



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