Jueves, 26 Abril, 2018

Frenchman claims cure for WannaCry-infected computers

35a-42619324- 19_05_2017 French researchers find last-ditch cure to unlock WannaCry files
Ramiro Mantilla | 20 May, 2017, 12:16

One drawback is that the fix only works if the computers were not rebooted from the moment of infection.

But statistical insignificance doesn't fully cover WannaCry's impact.

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

Working independently, Adrien Guinet, Matthieu Suiche and Benjamin Delpy came up with a software patch that works on Windows XP machines, and has since been tested on many others successfully. This also prevents the WannaCry to encrypt further files.

The aptly-named "WannaKey" tool is available for free here but only functions on computers running the Windows XP operating system.

Delpy added that so far, banking, energy and some government intelligence agencies from several European countries and India had contacted him regarding the fix.

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

WannaCry encryption creates two keys - "public" and "private" - that are based on prime numbers and are responsible for encrypting and decrypting the system's files respectively.

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. Incidentally, most of the infections occurred in China and Russian Federation, with the United States reportedly only seeing about 7% of worldwide infections.

Only 309 transactions worth around $94,000 appear to have been paid into WannaCry blackmail accounts by 9:45 a.m. ET Friday, seven days after the attack began. "Paying a ransom does not guarantee the victim will regain access to their data".