Paying a bunch of criminals is no solution. If you pay them once, you will give them incentive to continue doing so. Plus you don't know if your files will really be decrypted after paying. Only solution is to either professionally have the systems 'cleaned', or they need to be wiped out and a back up being installed. I am quite happy that the number of paid ransom is severely lacking if you take the size of this attack into consideration.
You do not trust the criminal? There is a solution - In the future, malware will have smart contracts. You can be sure that your files will be decrypted once you pay the ransom. The only way to transact with an untrustworthy person.
I have no confidence in criminals. And I will not pay money in this situation. I believe that this virus can bypass or protect your computer from it. You need to be careful and always install an antivirus
This virus was able to bypass any antivirus protection. (not now probably, because antivirus companies sent updates) You don't need to download something to get infected. That virus can just find your computer because you are connected to the internet, because microsoft itself put that exploit there for NSA.
I would like you to see saying those after you lose your 100k$ btc wallet or something as valuable as this amount to those hackers. 300$ would look like a candy money to you then.