The developer’s new malware is called KINS, and he’s selling it for $5,000 a pop, although that price is likely to climb if the malware is a good as he brags it is. “[KINS is] a new professional-grade banking Trojan that is very likely taking its first steps in the cybercrime underground and could be poised to infect new victims as quickly and effectively as its Zeus, SpyEye and Citadel predecessors,” Limor Kessem, a cybercrime specialist with RSA, the security division of EMC, wrote in a blog post on Tuesday.