Spamhaus Botnet Summary 2016

Spamhaus' 2016 analysis reports 7,314 botnet C&C listings (a decrease from 2015) and highlights major trends: a surge in ransomware C&Cs, rapid emergence of IoT-targeting malware, extensive use of fraudulent hosting sign-ups by criminals, and increased reliance on anonymization networks like Tor by botnet operators. The report provides ISP-level hosting statistics and a ranked list of malware families associated with C&Cs, emphasizing active, large-scale criminal operations and mitigation challenges for providers.