Recently, a new type of bitcoin ransomware virus called "WannaRen" has appeared on the Internet. After invading the computer, almost all files in the system will be encrypted, and a ransom of 0.05 bitcoin will be required to restore the files. If the computer is infected with this virus, use anti-virus software to manually kill it at the first time. The computer will still be infected. Currently, general anti-virus software cannot intercept this virus.