WannaCry free decryption tool released
What Happened Last Week
In the Last week the cyber attack affected many computers in over 150 countries. Over 300,000 computers in the world are infected, and this is widely seen as the biggest cyber attack in the world.
What To Do Now
French security researcher Adrien Guinet, has discovered a way to retrieve the secret encryption keys used by WannaCry ransomware. "WannaCry ransomware rely on prime numbers and generates a “public” key and a “private” key for encryption and decryption of the system files." According to Guinet.
He also found that it does not erase the prime numbers from memory before freeing the associated memory, and hence he was able to create a WannaCry ransomware decryption tool, named WannaKey, which basically tries to retrieve the two prime numbers used in the formula to generate encryption keys.
The WannaKey decryption tool is available for free to download and works on Windows XP, Windows 7, Windows Vista, Windows Server 2003 and 2008 operating systems. Unfortunately, the tool will only work on those affected computer that haven’t been rebooted after the attack or for computers with associated memory that hasn’t been allocated and erased by user or by some other process, added Guinet.
What's More : Another Tool to Decrypt
There is one more way to unlock your computer without paying that tool is called “WanaKiwi” by a security researcher named Benjamin Delpy that can unlock WannaCry infected systems.
This tool is said have to developed on Guinet’s findings and is available to download from Github. The WanaKiwi tool works on Windows XP, Windows 7, Windows Vista, Windows Server 2003 and 2008 operating systems like the WannaKey, and can run using the command prompt.
Download "WannaKey" from Here.
Or
Download "WannaKiwi" from Here.
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