FTC got a court order to pull the plug on a notorious ISP named Pricewert. The FTC said Pricwert was home to a host of illegal activity including the distribution of viruses, phishing, spyware and child pornography. The ISP was thought to be home to several servers used to control computers infected with the Cutwail Trojan program (also known as Pushdo) Security experts say that following the McColo incident, spammers may have put better backup systems in place to maintain control of botnets.”]
Source: https://www.csoonline.com/article/2124081/spam-drops-15-percent-after-ftc-pricewert-takedown.html