French researchers find last-ditch cure to unlock WannaCry files

Warning... Global cyber chaos spreads with start of the working week

But it took advantage of the memory-scraping idea originally developed by Adrien Guinet in a decryption program Guinet released yesterday that only worked on Windows XP.

The ransomware guys would now be offended as a security researcher claims you don't need to pay any money to recover your files if your computer is hacked.

WannaCry, which started to sweep round the globe last Friday and has infected more than 300,000 computers in 150 nations, threatens to lock out victims who have not paid a sum of $300 to $600 within one week of infection.

A free tool which can undo the damage caused by the WannaCry ransomware on some computers is now available.

Suiche has published a blog with technical details summarizing what the group of passing online acquaintances has developed.

The researchers said, however, that the tools are not ideal and work only if the computers infected with the WannaCry ransomware have not been rebooted after being hit.

The WannaKey software will allow users hit by the WannaCry ransomware and running Windows XP on their PC to get rid of the malicious encryptor and access their files again.

One important thing to note here is that this application works exclusively on Windows XP, and the researcher says it hasn't been tested on a different Windows version.

Nevertheless, victims of WannaCry can now bank on a third-party decrypting tool called "Wannakey", which enables affected users to decrypt or patch the ransomware attack on Windows.

"This is not a flawless solution".

If the aforementioned condition is met, the app can recover the prime numbers of the RSA private key that are being used by WannaCry to encrypt your files.

As of Wednesday, half of all internet addresses corrupted globally by WannaCry were located in China and Russian Federation, with 30 and 20 percent of infections, respectively, according to data supplied by threat intelligence firm Kryptos Logic.

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