Shellshock: Malicious Bash, Obfuscated perlb0t, Echo Probes, and More F5 Labs 10 years 9 months ago Shellshock can take advantage of HTTP headers as well as other mechanisms to enable unauthorized access to Bash.
perlb0t: Still in the Wild with UDP Flood DDoS Attacks F5 Labs 11 years ago Despite being around since 2005, perlb0t is still being used against unpatched servers.