The chronicle of WannaCry worm

guest · Aug 24, 2022

Security evolution: The large-scale, but short-lived ransomware epidemic of 2017.
August 24, 2022

The WannaCry cryptoworm epidemic began on May 12, 2017. Its victims had their work interrupted by the following on-screen message: [...]

Right after that, victims discovered that all their documents were encrypted, and all normal file extensions like .doc or .mp3 had .wnry extention appended to them. In case anyone will close the window without reading it, the malware also swapped the desktop wallpaper with its own bearing the following message: [...]
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To decrypt the files, the program demanded transferring $300 in bitcoin to the attackers’ wallet. Later, the amount was increased to $600. Within a day, the rapidly spreading internet worm had infected more than 200,000 systems worldwide, including both home computers and corporate networks: hospitals, transport companies, banking services and cell phone carriers were affected. The Taiwanese chipmaker TSMC had to suspend production due to a mass infection of corporate devices.
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The chronicle of WannaCry worm

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