DarkSky botnet features several evasion mechanisms, a malware downloader and a variety of network- and application-layer DDoS attack vectors. This bot is available for sale for less than $20 over the Darknet. As published by its authors, this malware is capable of running under Windows XP/7/8/10, both x32 and x64 versions, and has anti-virtual machine capabilities to evade security controls such as a sandbox, thereby allowing it to only infect 'real' machines.
To learn more about DarkSky, read our Malware Alert.