Ransomware is now one of the fastest growing classes of malicious software. In the last few years it has evolved from simple screen blockers demanding payments to something far more dangerous.
more here...............https://securelist.com/analysis/publications/64608/a-new-generation-of-ransomware/
more here...............https://securelist.com/analysis/publications/64608/a-new-generation-of-ransomware/