A ransomware virus is reported to be spreading aggressively around the globe, with over 50,000 computers having been targeted. The virus infects computer files and then demands money to unblock them.
An increase in activity of the malware was noticed starting from 8am CET (07:00 GMT) Friday, security software company Avast reported, adding that it “quickly escalated into a massive spreading.”
In a matter of hours, over 57,000 attacks have been detected worldwide, the company said.
The ransomware, known as WanaCrypt0r 2.0, is believed to have infected National Health Service (NHS) hospitals in the UK and Spain’s biggest national telecommunications firm, Telefonica.
According to Avast, the ransomware has also targeted Russia, Ukraine and Taiwan.
The virus is apparently the upgraded version of the ransomware that first appeared in February. Believed to be affecting only Windows operated computers, it changes the affected file extension names to “.WNCRY.”
It then drops ransom notes to a user in a text file, demanding $300 worth of bitcoins to be paid to unlock the infected files within a certain period of time.
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