It was quite a slow week in the beginning with most of the news being for the most part about small ransomware variants. It finished with a bang, though, with the reappearance of Locky riding on a strong wave of SPAM emails. Contributors and those who provided new ransomware information and stories this week include: @struppigel, @FWosar, @BleepinComputer, @malwrhunterteam, @PolarToffee, @demonslay335, @FourOctets, @JakubKroustek, @RecordedFuture, @MarceloRivero, @TalosSecurity.
Source: https://www.bleepingcomputer.com/news/security/the-week-in-ransomware-april-21st-2017-locky-returns/