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Microsoft just released a patch for Windows XP that fixes a file sharing flaw being exploited by the WannaCry ransomware. Here's how to install it.
You can download some versions of the patch using links at the bottom of this May 12th Microsoft article: Customer Guidance for WannaCrypt attacks. The full list of patch variants, including languages other than English, is in the Windows Catalog, just search for KB4012598.
For an x86 machine with Service Pack 3 installed, the downloaded file name is
windowsxp-kb4012598-x86-custom-enu_eceb7d5023bbb23c0dc633e46b9c2f14fa6ee9dd.exe
I know, its looks like malware itself. The file is small, only 665K. Logon as an Administrator and, for good luck, make a Restore Point first thing.
To see if System Restore is enabled, right click on My Computer, get the Properties and go to the System Restore tab. To actually make the Restore Point, go to Start -> Programs -> Accessories -> System Tools -> System Restore.
The installation process is simple.
- The World Is Suffering From Ransomware Attack Now. Everybody's Afraid With Their Personal Data. However, Microsoft Windows Has Given An 'Security Patch' Update For All Of You Guys.
- Windows Defender and Windows Update protect from new ransomware attack, Microsoft says. Is reportedly related to National Security Agency (NSA) hacking tools that were leaked by a group known.
How to defend yourself against the WannaCrypt global ransomware attack. Security updates can be download and deployed manually for Windows Server 2003 SP2 x64, Windows Server 2003 SP2 x86. WCry is so mean Microsoft issues patch for 3 unsupported Windows versions. Attack tool developed by the National Security Agency to virally spread ransomware known as. For download here.
May 19, 2017 The World Is Suffering From Ransomware Attack Now. Everybody's Afraid With Their Personal Data. However, Microsoft Windows Has Given An 'Security Patch.
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1. Wizard warns you to backup your system and close all open programs
2. Then you have to agree to a license
3. Installing the patch takes only a few seconds, even on old hardware. It first asks you to wait while it 'inspects your current configuration, archives your current files and updates your files.' Then it makes a restore point.
4. When its all done, it wants you to reboot
After rebooting, you can verify that the patch was correctly installed using Add or Remove Programs in the Control Panel. You first need to turn on the checkbox to 'Show updates.' Then scroll down looking for the 'Windows XP - Software updates' section. It should be huge.
In this section, look for 'Security Update for Windows XP (KB4012598)' with the current date as the date installed (see above). Considering this is Windows XP, the installation date should stick out like a sore thumb. On two machines that I tested, it was, fortunately, the last entry in the list.
The fix applies to the file sharing component of Windows (Server Message Block or SMB) and thus prevents an XP machine from being infected over a LAN (Local Area Network). However, it would not protect an XP machine that was attacked another way, via email, for example.
I checked around (here and here) and Microsoft has not issued an update to their free anti-malware software, Security Essentials, for Windows XP. When XP went off support, it was denied access to Security Essentials. Thus, XP machines remain vulnerable to WannaCry, just not via file sharing on a LAN.
To fully protect an XP machine requires a third party antivirus product. Lotsa luck with that.
BitDefender bragged today that they can protect against WannaCry, but they do not support Windows XP (see below for update). Neither does Avira, Trend Micro or F-Secure. Kaspersky still supports XP, but their website says nothing about WannaCry.
So, yes, Microsoft released a patch for Windows XP. But now you know the rest of the story.
UPDATE: May 15, 2017. A reader was nice enough to point out that Bitdefender does offer a product that supports Windows XP (and Vista too). The name is fairly direct: Security for XP and Vista.
UPDATE: May 15, 2017. A couple people have told me that when they verified the installation of the patch, the install date was not the current date but tomorrows date. Beats me why.
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- Ransomware attacks like WannaCry can be avoided by keeping software and anti-virus programs up to date, authorities said.
- Cybersecurity firms warned people not to pay the bitcoin ransom.
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Businesses are still dealing with the fallout from a
Ransomware – a malicious piece of software that locks files on a computer and demands payments to unlock them – is the name of the type of virus that infected the machines. Ransomware attacks have been on the rise and this particular malware known as WannaCry was called 'unprecedented' by Europol.
WannaCry affected an exploit in the Windows XP operating system on PCs, and Microsoft shortly sent out a fix for the security flaw. But authorities such as the U.K.'s National Cyber Security Center (NCSC), warned over the weekend that as the working week begins, further cases of ransomware could come to light.
Am I at risk?
The WannaCry ransomware affects machines running the Windows operating system. It was a security flaw that was originally exploited by the U.S. National Security Agency (NSA) which was then leaked earlier this year. Hackers are now using this themselves.
If you or your organization is running a version of Windows, you could be at risk.
What should I do to protect myself?
Authorities in the U.S. and U.K. have issued guidance on what to do.
Individuals and small businesses should:
- Run Windows Update to get the latest software updates.
- Make sure any anti-virus product is up to date and scan your computer for any malicious programs. It's also worth setting up regular auto-scans.
- Back up important data on your computer in case it gets held for ransom.
Large organizations should:
- Apply the latest Microsoft security patches for this particular flaw.
- Back up key data.
- Ensure all outgoing and incoming emails are scanned for malicious attachments.
- Ensure anti-virus programs are up to date and conducting regular scans.
- Educate employees on identifying scams, malicious
links and emails that may contain viruses. - Make sure to run 'penetration tests' against your network's security, no less than once a year, according to the Department of Homeland Security.
What if I've already been attacked?
- Do not pay the ransom demanded by the WannaCry ransomware,
cybersecurity firm Check Point warned in a blogpost Sunday . The company said there is no evidence of the hackers giving people files back. - For individuals, it might be worth contacting local IT support services.
- Businesses should contact law enforcement and provide as much information as possible.
- Restore backups of data.
How can I prevent ransomware attacks?
There are also steps that can be taken to protect against ransomware more generally. These include:
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- Making sure anti-virus programs are up to date and updating all software.
Back up copies of data.- Scrutinize links and files contained in emails.
- Only download software from trusted sources.