See: https://www.virustotal.com/nl/file/26e9816116de8b26ba0b1aa12fe4177dd1196ccdb9c93cbcd1b0593ce3f81e79/analysis/
Firefox zero day
Background news: https://www.reddit.com/r/linux/comments/3cegok/unknown_selinux_exploit_found_in_the_hacking/
Analysis: https://malwr.com/analysis/NjU5Mjk3ZGVhOWQ0NDMwMGI2YTM5ZGRlMmFiMjUxZTM/
Files became public because of a transparency report to land at VT.
Hacking Team sat on two zero days, that were leaked through a security breach.
Hacking Team developed government spyware 8).
polonus
Info credits for VT uploads in this thread go to Jacob Appelbaum (credits go where credits due)
Why develop such ELF file malware for Linux? Read for background musings: https://security.stackexchange.com/questions/92777/why-use-oddly-compiled-elf-files-for-linux-malware.
A vulnerabilty in the parser is being exploited to fool av detection,
so we have to look for it at kernel level to get a better detection.
polonus
But Avast did a great job on another one, where it was one of the only five to detect - see:
https://www.virustotal.com/nl/file/a03a6ed90b89945a992a8c69f716ec3c743fa1d958426f4c50378cca5bef0a01/analysis/1436184181/
So I expect the one provided earlier in this thread will also soon be detected by Avast 
polonus
P.S. Avast still missed on this one: https://www.virustotal.com/nl/file/06281627f84c7e2f37f2cafd609a592ddb46a28c03f39185c13da1fa9e6a6d53/analysis/
Damian
Very advanced hacks specially prepared for dubious government organizations
or maybe acquired via a pre-sale and used by your national police:
https://twitter.com/markloman/status/618341156125048832
polonus
Selinux exploit, the basics for it going back a long, long time to 2011: http://insidetrust.blogspot.com/2011/06/webserver-defense-in-depth-hackers-vs.html It works like malware that diables your AV on windows, pure crime.
Background reading: http://www.macrumors.com/2015/07/06/hacking-team-jailbroken-iphone/
also proofs that Skype isn’t secure here…allthough MS will never deny nor confirm this.
from a security perspective, the latest jailbreaking software is designed to obfuscate how it works, comes from teams based outside the United States, and disables several security features.
Quote from Nick DePetrillo, a principal security researcher at Trail of Bits...
polonus