WannaCry ransomware’s outbreak during the weekend was mitigated by having its kill switch domain registered. It was only a matter of time, however, for other cybercriminals to follow suit. Case in point: the emergence of UIWIX ransomware (detected by Trend Micro as RANSOM_UIWIX.A) and one notable Trojan our sensors detected.

http://blog.trendmicro.com/trendlabs-security-intelligence/wannacry-uiwix-ransomware-monero-mining-malware-follow-suit/