Malware authors and botmasters are thriving, with some online criminals charging as much as $3,500 for their attack toolkits. More basic exploit kits can be had for as little as $100. At the top of the heap sit kits such as the Adrenalin botnet kit, which can be customized to suit the needs of even the most demanding attacker. Adrenalin includes 24..7 technical support, built-in exploits, the ability to steal digital certificates and the option to encrypt the stolen data.
Source: https://threatpost.com/malware-economy-thriving-100609/72252/