Science

Frenchman claims cure for WannaCry-infected computers

Frenchman claims cure for WannaCry-infected computers

Given the very specific way in which the tool works, it only functions if the infected computer has not been rebooted since the WannaCry ransomware and the associated memory has not been allocated and erased by another process.

A loose-knit team of security researchers scattered across the globe said they had collaborated to develop a workaround to unlock the encryption key for files hit in the global attack, which several independent security researchers have confirmed.

Wannacry spread across the internet last week, infecting systems across the world and embarrassing nations that don't upgrade their OSs.

The researchers said the tools are not flawless and only work if the infected computers have not been rebooted after being hit by the programme. This also prevents the WannaCry to encrypt further files.




In his research summary, Mr Guinet - who works for the Paris-based firm Quarkslab - said his software had only been tested to work under Windows XP. Called "wanakiwi" the software tool is now available for free. From there, WanaKiwi generates a decryption key using the prime numbers it retrieved, allowing you to recover your files. According to new reports, new evidence is suggesting that most WannaCry victims were running Windows 7, meaning that Windows XP is "insignificant" when it comes to the distribution of the ransomware across Windows machines (via The Verge).

"This is not a flawless solution", Suiche said.

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.

That's just under one in 1,000 of the estimated victims.


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