The simplest (though not always best) method suggested by researchers is to pay the ransom and obtain the decryption key to recover the data. The ransomware demanded a payment of 40 Bitcoins, equal to about $17,000. Many patients were transferred to other facilities with working networks. Hospital staff was reduced to using fax machines and notepads in order to continue operations. According to the initial report, the network was down for more than a week. The ransomware attack was network-aware and replicated itself through network shares and mapped drives and was eventually successful in taking down the entire hospital network. It’s unsure who opened the file, but when the problem was reported on February 5, 2016, it had already spread rapidly. Because of the way Locky is spread (via malicious Word documents), it’s likely that a Hollywood Presbyterian employee fell for a phishing scheme and opened a document that looked like a hospital invoice. Recently, cybercriminals were successful in infecting the Hollywood Presbyterian Medical Center’s computer systems with ransomware. Researchers say ransomware has already made millions through extortion.
Previously, cybercriminals were using ransomware as a weapon for extortion by infecting multiple victims. Using an exploit kit, the attacker uses zero-day exploits to penetrate computer systems.In phishing emails, an attacker infects multiple users at the same time and demands the ransom.The most common methods include spam emails, advertisement media, and exploit kits. Today’s ransomware is a complex, sophisticated threat, damaging clients in numerous areas around the world, especially people from developed and tech-focused economies.Ĭybercriminals use multiple strategies to spread ransomware.
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