Ransomware Spreads Across The Globe: How To Protect Your Computer

A ransomware worm is rapidly taking over computers around the world. Here’s what you need to know to protect your computers and networks.

This particular worm, known by several names including WannaCry and WCry, is a type of computer virus called ransomware. Ransomware, as regular Tech Tips readers know, is especially nasty because it hijacks your computer and encrypts your data, then demands a ransom to decrypt it. A worm is a virus that worms its way through computer networks. Therefore, as you can imagine, a ransomware worm has the potential to wreak havoc worldwide. And that’s exactly what WannaCry and its variants are doing.

Your best protection is prevention. While this virus can be removed, the data it encrypts CANNOT be decrypted. Experts typically recommend not paying the ransom, as there is no guarantee you will recover your data even if you do. A current offline backup is the only way to preserve your information in the event of a ransomware attack.

Windows users, update NOW. If you’re on an old version of Windows and can’t update (anything except Win7, Win8.1, and Win10), this is your wake-up call to upgrade to a newer version. Yes, they released an XP patch. No, that doesn’t mean XP is safe. It means they had to patch XP because it’s used so widely in critical environments like hospitals. And that was an unprecedented move, as Microsoft had previously declared that XP would receive no further security updates. That indicates how serious the situation is. Microsoft has more information about supported versions of Windows on their Windows end-of-support page.

And, everyone – BACK UP YOUR DATA. Seriously. Back it up. Right now. Mac users, you too, you’re not immune to ransomware. Everybody BACK UP YOUR DATA ON A SEPARATE NON-NETWORKED DRIVE AND KEEP IT OFFLINE.

RIGHT. NOW. (Here’s my latest Tech Tips article on backups for Windows and Mac.)

Spread the word. Tell everyone: business associates, friends, family, neighbors, random strangers. Send them a link to this article and remind them to back up and update their computers immediately.

If you’ve already been affected by the WannaCry worm, here’s some information that can help.

Seven Ways To Fix A Slow Computer

Does your Windows or Mac computer seem to get slower every day? Try these seven techniques to speed up your system.

Reboot your computer
Most people know that rebooting can fix computer problems. What you may not know is that turning off the power by shutting down (called a cold boot) does a better job than simply using the restart command (a warm boot). If you hibernate your computer, you should give it a reboot now and then to clear any sleep-related snafus.

Scan for viruses and malware
Your next troubleshooting step should be to scan for viruses and malware using your usual antivirus program. Remember, some viruses can sneak past your computer’s defenses, which is why it’s important to watch what you click. Preventing viruses is easier than trying to remove them.

Run a cleanup utility
Cleanup utilities take care of little problems before they become big ones. Two of my favorites are CCleaner for Windows and Sierra Cache Cleaner for Mac. Watch out for computer viruses masquerading as cleaning utilities.

Reboot your network
If other devices are also slow, your network may be the culprit. Try rebooting by turning your router and/or modem off, then on again.

Install software updates
Updates fix bugs that can cause computers to slow down or crash. Keeping your computer updated helps to avoid these software bugs and keeps your computer more secure.

Quit apps when not in use
You should always quit apps when you’re not using them. Many people simply click out of the active window but leave the app running, which uses up extra memory and slows down your computer.

Add more memory
You may be able to add more memory to your computer. Check your manufacturer’s web site for configuration options.

Don’t forget to sign up to receive Tech Tips by email and follow Tech Tips on Facebook for the latest tech support advice for Windows and Mac.

Clean Up Your Computer With These Utilities

ttt-logoEvery computer needs a tune-up now and then. Unfortunately computer viruses often disguise themselves as cleaning programs and other utilities. You think you’re downloading a legitimate program, but you end up infecting your computer instead.

Here are some of my favorite bona fide utilities to help you keep your computer in top condition. I’ve included the full address for each product as a reminder that links, even on a benevolent site like this one, can be hijacked by hackers in order to lead you to malware-infected sites. Always visit the manufacturer’s site or app store directly to download programs, and remember that you use these utilities at your own risk.

Also make sure you are running a reliable antivirus program, that you have current updates for your system installed, and that you have a recent backup. See each utility’s site for more information and support.

Useful Utilities For Windows

  • CCleaner from Piriform
    https://www.piriform.com/ccleaner/download
    This program offers an easy way to clean out temporary files and other cached data. It also has options for optimizing your computer.
  • Malwarebytes
    https://www.malwarebytes.com/
    One of the top products for virus and malware removal. Your regular antivirus program offers routine protection, but Malwarebytes can help you remove the sneakies that manage to infiltrate those defenses.
  • Personal Software Inspector from Flexera Software (formerly Secunia)
    http://www.flexerasoftware.com/enterprise/products/software-vulnerability-management/personal-software-inspector/
    If you’ve been looking for a convenient way to make sure all of your Windows programs are up to date, look no further. PSI scans your system and lets you know which programs need updates or are obsolete. No more wondering if you have the latest versions!

Useful Utilities For Mac

  • El Capitan Cache Cleaner from Northern Softworks
    http://www.northernsoftworks.com/elcapitancachecleaner.html
    This little gem lets Mac users clear out caches and other miscellaneous junk. You can also use it to repair permissions, which can help to mitigate problems, as well as run other optimization routines. Despite the name it also works with previous versions of Mac OS.
  • Apple Diagnostics (Apple Hardware Test) from Apple
    https://support.apple.com/en-us/HT202731
    This hardware testing program is built into your Mac. Restart your Mac, then hold down the D key until the Apple Diagnostics window appears.
  • Disk Utility from Apple
    https://support.apple.com/en-us/HT201639
    This is another built-in tool that helps you diagnose and repair hard drive problems. You’ll find it in the Utilities folder in the Applications folder on your Macintosh HD.

 

How To Protect Your Mobile Devices From Malware

ttt-logoMobile malware is on the rise, but few people maintain the same precautions on their tablets and phones that they do on their computers. Here’s what you need to do to stay protected.

Mobile devices need antivirus software just like any other computer, but watch for malware masquerading as antivirus. In general the same security rules we use for computers also apply to phones and tablets:

  • Use the latest version of your device’s software
  • Install all software updates
  • Back up your data
  • Install only well-known apps from known developers
  • Be wary of malware disguised as legitimate apps
  • When in doubt, don’t click

It’s a good idea to configure a passcode for your mobile device. You should also enable any “Find My Device” features your phone or tablet may have. You can configure most devices to erase any data after a certain number of incorrect login attempts, which will keep your information safe should your device become lost or stolen.

Remember that some threats are universal. A fake website that attempts to harvest your username and password can affect you whether you are viewing it on Windows, Mac, or any mobile device. You also need to use strong, secure passwords that are unique for every site, and enable two-factor authentication where possible.

Here are links to antivirus for mobile devices and more.

iOS Antivirus (iPad / iPhone)

iOS Security Tips (iPad / iPhone)

Android Antivirus

Android Security Tips

Tech Tips Articles

How To Create Strong Passwords (2016 Edition)

How To Configure Security Settings For Windows, Mac, iOS, and Android

Security Basics For Windows Users

Windows81With Windows malware on the rise, now seems like a good time for a refresher on basic security advice for Windows users.

First, the bad news. If you are using Windows XP or Windows Vista, you need to upgrade as soon as possible for your own safety. Your computer can no longer run current antivirus software, nor does it receive security updates. Even longstanding programs like Google Chrome now consider WinXP and Vista obsolete. Below you’ll find resources on how to plan your upgrade.

As with any computer, the best defense for Windows users is prevention, including reliable backups and solid security software. Equally important, you also need to know how to recognize and avoid common Internet threats.

If you’d like to know more about Windows security, stay tuned to Tech Tips via Facebook and RSS, or subscribe by email.

Windows Antivirus Programs
Good security starts with a quality antivirus program. You can use the freebies, but I strongly recommend that you invest in a commercial security suite. It’s money well spent.

Upgrading From Windows XP and Windows Vista

Tech Tips – Recommended Advice For Windows Users

 

Ransomware: A Dangerous Threat To Your Computer

Computer SecurityRansomware is a particularly nasty form of computer virus that encrypts your data, then demands an electronic ransom for the encryption key. Why is ransomware so hazardous, and how can you remove it?

Ransomware is vicious because it doesn’t just render your computer unusable. It encrypts all of your files, including those on networked computers, removable drives, and server volumes. To get the key to unlock the encryption, cyber-criminals demand that you pay. Ransomware has decimated businesses and consumers alike. It’s been around on Windows for ages (see my writeup of Cryptolocker from a few years ago), but recently the first Mac-based ransomware has appeared in the wild.

Should You Pay?
There’s some debate amongst computer security experts as to whether it is better to pay the ransom or not. Sophos’ Naked Security blog has a good overview of the discussion. They also have an excellent article on what you can do if you are infected by ransomware.

How To Avoid Ransomware
You are far better off avoiding ransomware in the first place. Start by making sure you have multiple sets of known good backups. A clean backup is one of your best protections against ransomware and other viruses. Below you’ll find my guide on backup options for Windows and Mac, including how to test your backups to make sure they work when you need them.

All of my usual security recommendations apply as well. Use a top-quality antivirus program, and keep your computer up to date. If you’re on an obsolete version of Windows or Mac, now’s the time to upgrade. Check your default security settings, and use strong, unique passwords on every site.

Here are some Tech Tips articles to help. You can also sign up to receive Tech Tips by email and follow Tech Tips on Facebook for the latest tech support advice for Windows and Mac.

How To Back Up Your Computer (For Windows And Mac)

How To Create Strong Passwords (2016 Edition)

How To Configure Security Settings For Windows, Mac, iOS, and Android

Security Basics For Mac Users

How To Protect Your Web Browser

Security Basics For Mac Users

appleIf you’re not protecting your Mac from Internet threats, your computer can easily be overcome by viruses and malware. But running antivirus isn’t enough. Mac users also need to be just as aware of scams, fake apps, and other Internet dangers as their Windows counterparts. Here are some resources to get you started.

If you’d like to know more about Mac security, stay tuned to Tech Tips via Facebook, Twitter, and RSS, or subscribe by email.

Mac Antivirus Programs

Mac Security Help

Tech Tips – Recommended Advice For Mac Users

How To Protect Your Web Browser

browserYour Web browser lets you access Internet sites, but it can also be a gateway for viruses, malware, and more. Here’s how to keep your browser protected and secure.

(Don’t miss my latest article for The Northwest Herald – Protect Your Window To The Internet by Triona Guidry)

Remember that it’s vital to keep your browser up to date. If you can’t run an updated browser, you may need to consider an alternate browser or even a computer upgrade. Old computers running outdated browsers are holy grails to hackers and virus-writers because they’re so easy to infect. The US-CERT web site has detailed information about how and why you need to protect your Web browser.

Your computer’s default Web browser is Internet Explorer for Windows, and Safari for Mac. Here’s some information about how to secure them. Bear in mind that software manufacturers don’t provide security updates for outdated versions of their browsers, which may be why you don’t see yours here.

Internet Explorer (Microsoft)

Safari (Apple)

Alternate browsers include Mozilla Firefox, Google Chrome, and Opera, among others.

Do you have questions about securing your Web browser? Ask in the comments, and don’t forget to follow Tech Tips on Facebook and @trionaguidry on Twitter.

Windows XP Is Dead. Now What?

Windows XPAs you may have heard, Microsoft has ceased support for Windows XP. Many people assume it’s okay to keep using it. They’re dead wrong.

WinXP is already vulnerable to viruses because it’s been out so long. Now we have the nightmare scenario in which bugs are discovered but not fixed. Here’s how it goes: Microsoft announces a security vulnerability and offers patches for Win7 and Win8. The hackers rub their hands with glee and start testing to see if WinXP has the same vulnerability. Lo and behold it does, and they have an easy way to sneak into your computer.

Like the recently discovered Internet Explorer bug, which gives hackers a way to take over your entire system. It’s the first major vulnerability since XP’s demise. We know the bug exists in IE under XP. At first Microsoft said they weren’t going to patch it for XP, but now they’ve changed their minds. The question is, what about the next big bug? Using WinXP is like leaving your front door keys in the lock with a sign that says “Come on in, the best valuables are right over there!”

This isn’t a marketing gimmick or a way to increase PC sales, though I’m sure tech vendors don’t mind if you give them money. This is about you and the real-world repercussions of a hacked computer. Do you want your bank accounts wiped out? Do you want your identity stolen? Do you want your online identities hijacked? If not, then get off Windows XP.

Some of you will decide you don’t want to upgrade. That’s up to you, but I strongly recommend you reconsider. A very few of you – less than you think – will have some business-critical function that requires XP. Unless you are in that infinitesimal group, upgrade now.

What are your choices? Windows 7, Windows 8, or Mac. I did a rundown on them a while back based on a question from a reader. At this time, my recommendation stands at Windows 7 or Mac depending on your preference, with Windows 8 a distant runner-up due to its unfamiliar interface and lack of apps. Or, you could go pure mobile with tablet and smart phone.

For those of you who really, truly, honestly cannot upgrade from Windows XP, you have my condolences and some advice:

  • Use a browser other than Internet Explorer. Never use IE even for a moment.
  • Make sure you have the last round of updates Microsoft offered for XP. You can still use Automatic Updates to install them.
  • Run a good antivirus program.
  • Double-check regularly with Malwarebytes and CCleaner.
  • Don’t use Windows XP for finances or online purchasing. Ever. Your smart phone is safer at this point and I don’t advocate using smart phones for finances.
  • Don’t use WinXP to access social media sites (Facebook, Twitter, etc). Social media is a virus cesspool and you don’t have a lifejacket.
  • Plan your upgrade. This is not a permanent solution. Eventually your PC will fail and you will have to replace it.

Do you have questions about Windows XP’s end of support? Ask in the comments, and don’t forget to subscribe to Tech Tips by email and follow on Facebook. You can also follow @trionaguidry on Twitter.

Cryptolocker: Why Modern Computer Viruses Are More Dangerous Than Ever

crypt-messageToday’s computer viruses go beyond mere annoyance. How does holding your data for ransom sound? What about spying on you through your webcam, tracking your physical location, recording every keystroke you make? Welcome to the modern generation of computer threats, where infection means real-world consequences.

The latest virus making the rounds is Cryptolocker, a textbook example of all the truly nasty ways in which a modern computer virus can ruin your day. Cryptolocker encrypts your data with a one-way algorithm which mathematically cannot be reversed. If you don’t pay the ransom within the timeframe, the only key to your data is gone, kaput, goodbye.

You can’t restore your data by removing Cryptolocker, because removing the virus doesn’t decrypt the data. No tech support person in the world can decrypt it for you because it’s simply not possible without the key. Even police departments have paid the ransom, even as they recommend that consumers not do so.

Here are some resources on Cryptolocker so you can keep it from digging its sharp claws into your computer.

Cryptolocker started its initial spread via email attachments, which are fairly easy to avoid. But now it’s morphing into variants that can be transmitted via USB drive, and luring victims with fake software activation codes. Although it’s a Windows virus, like all viruses it can be transmitted via Macs and mobile devices. Following in the steps of other viruses, soon Cryptolocker will evolve into spreading via social media sites.

And this is just the start.

There are other viruses out there that can activate webcams – and yes, they can bypass the green light that tells you the webcam is on. They can listen through microphones. They can track your location via your mobile device. They can listen in on your conversations on social media.

Now, more than ever, it’s vital to protect yourself from computer viruses. Here are some Tech Tips resources to help:

Have you run into Cryptolocker or other similarly destructive viruses? Share in the comments, and don’t forget to subscribe to Tech Tips by email and follow on Facebook. You can also follow @trionaguidry on Twitter.