'Windows 10 is only OS safe from WannaCry', says Microsoft

Blocking systems and files until a ransom was paid, the ransomeware deleted files within days if users refused to pay up.

It uses a technique developed by Guinet that involves searching for prime numbers stored by the malware in the computer's memory in order to deduce the decryption key.

Microsoft had released a patch for Windows 7 in March but it appears that many users hadn't updated to the latest version.

Given the very specific way in which the tool works, it only functions if the infected computer has not been rebooted since the WannaCry ransomware and the associated memory has not been allocated and erased by another process.

The prime numbers may also be overwritten in the system's memory over time, causing the tool to fail, Suiche acknowledged.

Europol said on Twitter that its European Cybercrime Centre had tested the team's new tool and said it was "found to recover data in some circumstances".

A leading cyber expert said Monday consumers shouldn't blindly accept a company's free offer to remove WannaCry ransomware from their computer.

"The infection wave is far from being over", he wrote.

Weeks after WannaCry launched a devastating attack that affected the operations of large companies, government agencies, and institutions across the globe, cyber security company Kaspersky Lab learned that about 98 percent of the computers affected by WannaCry are running various versions of the Windows 7 software.

In a survey for Reuters, BitSight found that 67 per cent of infected PCs it infected were running Windows 7, despite the OS being installed on fewer than half of Windows PCs worldwide.

In South Africa, the WannaCry ransomware attack crippled Telkom's customer platforms - which impacted customer services.

"The attackers initiated an operation to hunt down vulnerable public facing SMB ports and, once located, used the newly available SMB exploits to deploy malware and propagate to other vulnerable machines within connected networks", he wrote.

"The exploit technique is known as HeapSpraying and is used to inject shellcode into vulnerable systems allowing for the exploitation of the system", the firm said in an advisory.

Malwarebytes advised users to install patches regularly and to turn off protocols such as SMB if they're not needed.

  • After mistake in 2012, Sato learns lesson to win Indy 500

    After mistake in 2012, Sato learns lesson to win Indy 500

    Castroneves spent the rest of the race playing cat-and-mouse with Sato and nearly had him just as the second-to-last lap began. Foyt at Long Beach in 2013.Sato's victory gave Andretti a second consecutive win in " The Greatest Spectacle in Racing ".
    'Man Utd are interested in signing Perisic'

    'Man Utd are interested in signing Perisic'

    Manchester United will look to bolster their attack next season and they are reportedly already in talks with this Serie A star. According to Sky Sports , United aren't the only ones on Perisic and Antonio Conte's Chelsea are also interested in him.

    Trump pushes aside Montenegro leader _ who calls it natural

    Russian Federation annexed Crimea in 2014, and fomented a pro-Russia separatist movement in eastern Ukraine that same year. The US President then stood near Mr Markovic and spoke to Lithuanian President Dalia Grybauskaite .
  • White House advisers postpone Paris climate deal meeting

    White House advisers postpone Paris climate deal meeting

    France's president-elect Emmanuel Macron after casting his ballot in Le Touquet on Sunday. "Please, come to France". He said he trusted that "the good sense and pragmatic spirit of President Trump and his team" would prevail.

    Arsenal beat Chelsea to win record 13th FA Cup

    After a torrid run of form at the start of spring, Wenger opted to alter his tactics and set his side out with a three-man defence.
    Trump's North Atlantic Treaty Organisation  debut does little to assure allies

    Trump's North Atlantic Treaty Organisation debut does little to assure allies

    From handshakes to hand swats, here are the top four awkward body language moments from Trump's first trip overseas . As he tried to reach the front of the group, Montenegro's Prime Minister Dusko Markovic was standing in his way.
  • Are you lovin' it? UberEats delivers McDonald's in New Orleans

    Are you lovin' it? UberEats delivers McDonald's in New Orleans

    The closest location will prepare the order, and an Uber driver will pick it up for a flat booking fee and deliver it on demand. If you're wanting a Big Mac but don't want to drive to a McDonald's to satisfy your craving, take heart.
    Cespedes (hamstring) begins rehab in minors

    Cespedes (hamstring) begins rehab in minors

    The Mets announced that newly promoted Tyler Pill would start Tuesday against the Brewers. "I'm really looking forward to it". Minus All-Star closer Jeurys Familia for much of the season, the Mets had converted only 10 of 19 save opportunities.

    Trump Faces Tensions at G-7 Summit

    In this unique and preeminent task, Trump said, "Muslim-majority countries must take the lead in combatting radicalization". President Donald Trump has faced a much cooler reception in Europe than the welcome he received in the Middle East.
  • Michael Kors announces store closures as sales dip

    Michael Kors announces store closures as sales dip

    Michael Kors Holdings Ltd. has not yet disclosed which locations will be closed and when, the Los Angeles Times reported. Wolfe Research initiated the shares of KORS in report on Tuesday, August 18 with "Peer Perform" rating.
    Hansen expects ABs to face 'Warrenball' in Lions tests

    Hansen expects ABs to face 'Warrenball' in Lions tests

    Putting aside Gatland's alleged bias towards his Welsh team, he has picked the right leader in the shape of Sam Warburton . Then there are the young guns led by Maro Itoje, Anthony Watson, Kyle Sinckler and Robbie Henshaw.

    Underdog Cavs insist they have plenty of bite for Finals

    It's the matchup most expected, the matchup most predicted, and probably the matchup the Cavaliers and Warriors wanted, as well. OddsShark.com posted its NBA Finals MVP odds on Tuesday, even before the Cavs clinched the Eastern Conference title again.