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"wanna cry" encrypt our data within a minute. So how can they do it that much faster speed on network?? Is my file encrypted by "wanna cry" then any way to decrypt my file without sending bitcoins to hacker(s)??

marked as duplicate by techraf, Steffen Ullrich, tim, mgjk, Serge Ballesta May 26 '17 at 20:22

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"'wanna cry' encrypt our data within a minute. So how can they do it that much faster speed on network?? "

It encrypts attached network drives so the speed will be down to the CPU of the machines and network bandwidth. Also the size of data to be encrypted.

Also remember should other network machines be vulnerable to the SMB flaw then the worm is installed on that machine - meaning the contents of that encryption is local to the infect machine (not done over the network from the original machine).

Is my file encrypted by "wanna cry" then any way to decrypt my file without sending bitcoins to hacker(s)??

In short no. But if you have not turned off your machine you could try looking at an approach detailed in this article from wired: https://www.wired.com/2017/05/wannacry-flaw-help-windows-xp-victims-get-files-back/

(This attmepts to recover the two prime numbers used for the public/private key pair generation)

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Well, it a time question!

The antivirus developers are building a solution. The most popular and agressive ransomware was uncripted successfully and delivered by Avast and Kaspersky, as:

https://noransom.kaspersky.com/

Let's wait! See ya.

  • If the encryption was done properly (which, with WannaCry, it was) then there is no solution without the private key. – Luke Park May 27 '17 at 10:09

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