“We weren’t expecting to see it but there has been a slight decline in the number of computers affected in Europe”, Europol said.
The WannaCry hackers revealed software vulnerabilities using a common technique called phishing where people are sent bogus emails that entice users to open them.
Some 47 NHS trusts fell victim to these ransomware attacks resulting in devastating consequences for some patients, as operations were cancelled and medical records held for ransom.
As notorious WannaCrypt ransomware hits businesses worldwide, technology giant Microsoft said it has been working round the clock since Friday to help all its customers who have been affected by this incident.
Hackers hijacked computers, locking users out of their data unless they paid a ransom in Bitcoins, nearly impossible to trace. The company released an emergency patch for Windows XP (and Windows 8 and Windows Server 2003) last week to stop the ransomware from spreading.
The impact of WannaCry ransomware attack has been limited to five or six isolated instances so far and there are no reports of any substantial disruption to India’s IT backbone, said government on Tuesday.
Officials across the globe scrambled to catch the culprits behind a massive ransomware worm that disrupted operations at auto factories, hospitals, shops and schools, while Microsoft pinned blame on the USA government for not disclosing more software vulnerabilities.
Kaspersky Labs’s Global Research and Analysis team points out that WannaCry starts with a remote code execution in Microsoft Windows, taking advantage of a vulnerability dubbed “EternalBlue“. The hacker now demands a ransom from the host – anything between $300 and $600 in BitCoins – to unlock the system.
Microsoft, which on Friday took the unusual step of issuing a custom security update for users whose systems no longer receive regular support, has urged users with older versions of Windows to patch the vulnerability as soon as possible. “As expected, the attackers have released new variants of the malware”.
The ransomware attack that plagued the globe on Friday must serve as a “wake-up call” to both industry and government leaders that the time for urgent action is now. His advice to companies: install the latest operating system updates, secure your internal network, and – most importantly – back up everything. (Note: the “Windows Update” section is also handy for showing you updates that are now being downloaded or applied.) Under “Advanced Options“, just make sure the drop down box is set to “Automatic”.