Bash Vulnerability Part 6: YABU - Yet Another Bash Update - Doug Burks - Security Onion

If you run Snort this might be of interest to you.

Shellshock in the Wild - Micheal Lin, James Bennett, and David Bianco - FireEye

FireEye has been keeping an eye (pun intended) on Shellshock activity and has a list of how the exploit is being used.

 This post first appeared on Exploring Information Security.