The legally dubious Carna Botnet and Internet Census 2012 took advantage of systems facing the Internet  running Telnet with the username and password root:root. Hijacking these systems enabled the anonymous security researcher(s) to quickly create a botnet of scanners that scanned the entire Internet (IPv4 range) incredibly quickly. I was curious

Last week the source code for the “Carberp” botnet creation kit  was posted online and released to the masses creating a huge problem for security teams around the world. Carberp is sophisticated, modular and persistent malware utilizing advanced obfuscation techniques to evade detection, removal and the ability to disable anti-virus.