Ransomware Attacks Ravage Computer Networks In Dozens Of Countries

13 Mai, 2017, 05:36 | Author: Cyril Hebras

Victims of the attack are confronted with a pop-up window that tells them their files are now encrypted and that they need to send $300 via the bitcoin cryptocurrency. Microsoft previously released a patch to fix these exploits; however, companies that have not installed the patch are still vulnerable to this attack. But computers and networks that haven't updated their systems are at risk. The exploit was leaked last month as part of a trove of NSA spy tools. The price rises to $600 after a few days; after seven days, if no ransom is paid, the hacker (or hackers) will make the data permanently inaccessible (WannaCry victims will have a handy countdown clock to see exactly how much time they have left).

On Wednesday hackers disputed the websites of several French media companies and aerospace giant Airbus.Also, the hack happened four weeks before a British parliamentary election in which national security and the management of the state-run National Health Service (NHS) are important campaign themes.Authorities in Britain have been braced for possible cyberattacks in the run-up to the vote, as happened during last year's US election and on the eve of this month's presidential vote in France.But those attacks - blamed on Russian Federation, which has repeatedly denied them - followed an entirely different modus operandi involving penetrating the accounts of individuals and political organizations and then releasing hacked material online. Most of the affected hospitals were in England, but several facilities in Scotland also reported being hit.

This image provided by the Twitter page of @fendifille shows a computer at Greater Preston CCG as Britain's National Health Service is investigating "an issue with IT" Friday May 12, 2017.

Britain's NHS confirmed that the ransomware is a variant of the NSA exploit, called WannaCry or Wanna Decryptor.

In a statement, Avast Threat Lab said it has observed a massive peak in WanaCrypt0r 2.0 attacks, with more than 36,000 detections, so far.

Russia's Interior Ministry released a statement acknowledging a ransomware attack on its computers, adding that less than 1% of computers were affected, and that the virus is now "localized". It is available in at least 28 languages, including Bulgarian and Vietnamese, according to Avast, a Czech security company that is following the fast-moving attack.

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He said the Federal Government was closely monitoring the situation.

The U.S. Department of Homeland Security, in a statement late Friday, encouraged people to update their operating systems.

Images that were posted online of the NHS pop-up look almost identical to pop-up ransomware windows that hit Spain's Telefonica, a powerful attack that forced the large telecom to order employees to disconnect their computers from its network and to resort to an intercom system to relay messages, according to Bleeping Computer.

"This attack was not specifically targeted at the NHS and is affecting organizations from across a range of sectors". The best way to prevent an attack is for systems managers to be sure all the most current patches are applied to their systems. Although it won't do any good for machines that have already been hit.

He said it's likely the ransomware will spread to USA firms too. It can infect other computers on the same wireless network. "From there, to other companies". They also point to a patch from Microsoft.

According to it, ransomware spreads easily when it encounters unpatched or outdated software.

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