A recent news story, following research from security provider Infoblox, highlighted the case of the ‘Revolver Rabbit’ cybercriminal gang, who have registered more than half-a-million domains to be used for the distribution of information-stealing malware. The gang make use of automated algorithms to register their domains, but unlike the long, pseudo-random (‘high entropy’) domain names frequently associated with such tools, the Revolver Rabbit domains instead tend to consist of hyphen-separated dictionary words (presumably so as to obfuscate their true purpose), with a string of digits at the end.