Tag: microsoft

WCry is so mean Microsoft issues patch for 3 unsupported Windows versions

Enlarge (credit: Health Service Journal) A day after a ransomware worm infected 75,000 machines in 100 countries, Microsoft is taking the highly unusual step of issuing patches that immunize Windows XP, 8, and Server 2003, operating systems the company stopped supporting as many as three years ago. The company also rolled out a signature that allows its Windows Defender antivirus engine to provide “defese-in-depth” protection. The moves came after attackers on Friday used a recently leaked attack tool developed by the National Security Agency to virally spread ransomware known as WCry . Within hours, computer systems around the world were crippled, prompting hospitals to turn away patients and telecoms, banks and companies such as FedEx to turn off computers for the weekend. The chaos surprised many security watchers because Microsoft issued an update in March that patched the underlying vulnerability in Windows 7 and most other supported versions of Windows. (Windows 10 was never vulnerable.) Friday’s events made it clear that enough unpatched systems exist to cause significant outbreaks that could happen again in the coming days or months. In a blog post published late Friday night , Microsoft officials wrote: Read 9 remaining paragraphs | Comments

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WCry is so mean Microsoft issues patch for 3 unsupported Windows versions

Renault And Nissan Plants Hit By Massive Ransomware Attack

French auto giant Renault became the first major French company to report being affected by Friday’s ransomware attack that affected tens of thousands of computers in almost 100 countries across the world, reports Automotive News . An English plant of Renault’s alliance partner Nissan was also hit by the attack. Read more…

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Renault And Nissan Plants Hit By Massive Ransomware Attack

Researchers Find New Version Of WanaDecrypt0r Ransomware Without A Kill Switch

Remember that “kill switch” which shut down the WannCry ransomware? An anonymous reader quotes Motherboard: Over Friday and Saturday, samples of the malware emerged without that debilitating feature, meaning that attackers may be able to resume spreading ransomware even though a security researcher cut off the original wave. “I can confirm we’ve had versions without the kill switch domain connect since yesterday, ” Costin Raiu, director of global research and analysis team at Kaspersky Lab told Motherboard on Saturday… Another researcher confirmed they have seen samples of the malware without the killswitch. Read more of this story at Slashdot.

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Researchers Find New Version Of WanaDecrypt0r Ransomware Without A Kill Switch

New Ransomware ‘Jaff’ Spotted; Malware Groups Pushing 5M Emails Per Hour To Circulate It

An anonymous reader writes: The Necurs botnet has been harnessed to fling a new strain of ransomware dubbed “Jaff”. Jaff spreads in a similar way to the infamous file-encrypting malware Locky and even uses the same payment site template, but is nonetheless a different monster. Attached to dangerous emails is an infectious PDF containing an embedded DOCM file with a malicious macro script. This script will then download and execute the Jaff ransomware. Locky — like Jaff — also used the Necurs botnet and a booby-trapped PDF, security firm Malwarebytes notes. “This is where the comparison ends, since the code base is different as well as the ransom itself, ” said Jerome Segura, a security researcher at Malwarebytes. “Jaff asks for an astounding 2 BTC, which is about $3, 700 at the time of writing.” Proofpoint reckons Jaff may be the work of the same cybercriminals behind Locky, Dridex and Bart (other nasty malware) but this remains unconfirmed. And Forcepoint Security Labs reports that malicious emails carrying Jaff are being cranked out at a rate of 5 million an hour on Thursday, or 13 million in total at the time it wrote up a blog post about the new threat. Read more of this story at Slashdot.

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New Ransomware ‘Jaff’ Spotted; Malware Groups Pushing 5M Emails Per Hour To Circulate It

‘WannaCry’ ransomware attack spreads worldwide (update)

England’s healthcare system came under a withering cyberattack Friday morning, with ” at least 25 ” hospitals across the country falling prey to ransomware that locked doctors and employees out of critical systems and networks. The UK government now reports that this is not a (relatively) isolated attack but rather a single front in a massive regionwide digital assault. #nhscyberattack pic.twitter.com/SovgQejl3X — gigi.h (@fendifille) May 12, 2017 The attack has impacted hospitals and transportation infrastructure across Europe, Russia and Asia. Organizations in dozens of countries have all been hit with the same ransomware program, a variant of the WannaCry virus, spouting the same ransom note and demanding $300 for the encryption key, with the demand escalating as time passes. The virus’s infection vector appears to through a known vulnerability, originally exploited and developed by the National Security Agency. That information was subsequently leaked by the hacking group known as Shadow Broker which has been dumping its cache of purloined NSA hacking tools onto the internet since last year. The virus appears to have originally spread via email as compressed file attachment so, like last week’s Google Docs issue, make sure you confirm that you email’s attachments are legit before clicking on them. Also, make sure your computers are using software that’s still receiving security updates, and that you’ve installed the latest updates available. Microsoft released a fix for the exploit used as a part of its March “Patch Tuesday” release, but unpatched Windows systems remain vulnerable. Update : Reuters reports a statement from Microsoft indicating that engineers have added detection and protection against the “Ransom:Win32.WannaCrypt” malware, so make sure your Windows Defender or other antivirus is updated before logging on to any corporate networks that may be infected. In a statement, a FedEx representative confirmed its systems are being impacted, saying “Like many other companies, FedEx is experiencing interference with some of our Windows-based systems caused by malware. We are implementing remediation steps as quickly as possible. We regret any inconvenience to our customers.” Source: New York Times

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‘WannaCry’ ransomware attack spreads worldwide (update)

Windows Server will add the Linux subsystem, join the Insider program

(credit: Microsoft) SEATTLE—When Microsoft first introduced the Windows Subsystem for Linux (WSL) at last year’s Build developer conference , it said that it was doing so to make developers who were familiar with the Linux command line feel comfortable on Windows . The immediate and inevitable question was “Well, what about Windows Server?” Development is one thing, but what if organizations wanted to occasionally deploy their Linux software on Windows? Although Windows Server 2016 and Windows 10 share many components, the Server operating system hasn’t thus far included WSL, consistent with the “developer only” rationale. But that’s going to change: at Build this week, Microsoft announced that WSL will be included in Server later this year. Microsoft still isn’t positioning this as a way of running Linux server in production on Windows; rather, the company says the addition will be useful for administrative tasks. With WSL, Windows can run scripts written for Linux. But we’re hard-pressed to see things stopping there; it seems inevitable that at some point, Windows will offer the ability to run Linux server software as one of its features. Read 3 remaining paragraphs | Comments

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Windows Server will add the Linux subsystem, join the Insider program

Today’s Massive Ransomware Attack Was Mostly Preventable—Here’s How To Avoid It

Ransomware may be mostly thought of as a (sometimes costly) nuisance, but when it hinders the ability of doctors and nurses to help people with an emergency medical problems, that qualifies as armed robbery. Read more…

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Today’s Massive Ransomware Attack Was Mostly Preventable—Here’s How To Avoid It

WCry is so mean Microsoft issues patch for 3 unsupported Windows versions

Enlarge (credit: Health Service Journal) A day after a ransomware worm infected 75,000 machines in 100 countries, Microsoft is taking the highly unusual step of issuing patches that immunize Windows XP, 8, and Server 2003, operating systems the company stopped supporting as many as three years ago. The company also rolled out a signature that allows its Windows Defender antivirus engine to provide “defese-in-depth” protection. The moves came after attackers on Friday used a recently leaked attack tool developed by the National Security Agency to virally spread ransomware known as WCry . Within hours, computer systems around the world were crippled, prompting hospitals to turn away patients and telecoms, banks and companies such as FedEx to turn off computers for the weekend. The chaos surprised many security watchers because Microsoft issued an update in March that patched the underlying vulnerability in Windows 7 and most other supported versions of Windows. (Windows 10 was never vulnerable.) Friday’s events made it clear that enough unpatched systems exist to cause significant outbreaks that could happen again in the coming days or months. In a blog post published late Friday night , Microsoft officials wrote: Read 9 remaining paragraphs | Comments

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WCry is so mean Microsoft issues patch for 3 unsupported Windows versions

Microsoft Finally Bans SHA-1 Certificates In Its Browsers

An anonymous reader quotes ZDNet: With this week’s monthly Patch Tuesday, Microsoft has also rolled out a new policy for Edge and Internet Explorer that prevents sites that use a SHA-1-signed HTTPS certificate from loading. The move brings Microsoft’s browsers in line with Chrome, which dropped support for the SHA-1 cryptographic hash function in January’s stable release of Chrome 56, and Firefox’s February cut-off… Apple dropped support for SHA-1 in March with macOS Sierra 10.12.4 and iOS 10.3… Once Tuesday’s updates are installed, Microsoft’s browsers will no longer load sites with SHA-1 signed certificates and will display an error warning highlighting a security problem with the site’s certificate. Read more of this story at Slashdot.

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Microsoft Finally Bans SHA-1 Certificates In Its Browsers

Researchers Find New Version Of WanaDecrypt0r Ransomware Without A Kill Switch

Remember that “kill switch” which shut down the WannCry ransomware? An anonymous reader quotes Motherboard: Over Friday and Saturday, samples of the malware emerged without that debilitating feature, meaning that attackers may be able to resume spreading ransomware even though a security researcher cut off the original wave. “I can confirm we’ve had versions without the kill switch domain connect since yesterday, ” Costin Raiu, director of global research and analysis team at Kaspersky Lab told Motherboard on Saturday… Another researcher confirmed they have seen samples of the malware without the killswitch. Read more of this story at Slashdot.

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Researchers Find New Version Of WanaDecrypt0r Ransomware Without A Kill Switch