Experts say Shellshock-enabled Mayhem is bad enough, but perhaps its bigger significance is its role as a bellwether. Experts warn that it won’t take long now for criminals to weaponize Shellshock exploits en masse, because they’ll likely follow the Mayhem model. Mayhem’s danger comes from the combination of two exploits that leverages a vulnerability that allows attackers to upload files to Linux servers via FTP. The changes to Mayhem make the botnet have worm-like qualities, experts say.”]
Source: https://www.darkreading.com/attacks-breaches/shellshock-mayhem-marks-the-start-of-malware-mess