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#1 » by ItuGlobal (β3096) » May 15th, 2016, 10:13 pm

Ransom?

Let’s start with the basics. A particularly nefarious form of malware, ransomware is a piece of software criminals use to lock you out of your computer by encrypting its files and holding them for ransom for a specific dollar amount.

If you don’t pay up, you can potentially say goodbye to your photos, tax documents, pay stubs, and any other documents you’ve saved throughout the years.

This isn’t some idle threat, either. If you don’t pay, your documents will disappear or simply stay locked up until you completely reformat your system.

Ransomware programs sometimes require you to pay in Bitcoin, an anonymous currency that can’t be tracked.

However, criminals have increasingly begun demanding payment in the form of iTunes or Amazon gift cards, since the average person doesn’t know how to use Bitcoin, according to Gary Davis, chief consumer security evangelist at Intel Security.

The amount you have to pay to unlock your computer can vary, with some experts saying criminals will ask for up to $500.

To be clear, ransomware doesn’t just target Windows PCs. The malware has been known to impact systems ranging from Android phones and tablets to Linux-based computers and Macs.

Where it comes from

According to Davis, ransomware was actually popular among cybercriminals over a decade ago. But it was far easier to catch the perpetrators back then since anonymous currency like Bitcoin didn’t exist yet. Bitcoin helped changed all that by making it nearly impossible to track criminals based on how victims pay them.

There are multiple types of ransomware out there, according to Chester Wisniewski, a senior security advisor with the computer security company Sophos. Each variation is tied to seven or eight criminal organizations.

Those groups build the software and then sell it on the black market, where other criminals purchase it and then begin using it for their own gains.

How they get you

Ransomware doesn’t just pop up on your computer by magic. You actually have to download it. And while you could swear up and down that you’d never be tricked into downloading malware, cybercriminals get plenty of people to do just that.

Here’s the thing: That email you opened to get ransomware on your computer in the first place was specifically written to get you to believe it was real. That’s because criminals use social engineering to craft their messages.

For example, hackers can determine your location and send emails that look like they’re from companies based in your country.

“Criminals are looking are looking up information about where you live, so you’ll click (emails),” Wisniewski explained to Yahoo Finance. “So if you’re in America, you’ll see something from Citi Bank, rather than Deutsche Bank, which is in Germany.”

Cybercriminals can also target ransomware messages to the time of year. So if it’s the holiday shopping season, criminals might send out messages supposedly from companies like the US Postal Service, FedEx or DHL. If it’s tax time, you could receive a message that says it’s from the IRS.

Other ransomware messages might claim the FBI has targeted you for using illegal software or viewing child pornography on your computer. Then, the message will tell you to click a link to a site to pay a fine — only to lock up your computer after you click.

It’s not just email, though. An attack known as a drive-by can get you if you simply visit certain websites. That’s because criminals have the ability to inject their malware into ads or links on poorly secured sites. When you go to such a site, you’ll download the ransomware. Just like that, you’re locked out of your computer.

How to protect yourself

Ransomware attacks vulnerabilities in outdated versions of software. So, believe it or not, the best way to protect yourself is to constantly update your operating system’s software and apps like Adobe Reader. That means you should always click that little “update” notification on your desktop, phone, or tablet. Don’t put it off.

Beyond that, you should always remember to back up your files. You can either do that by backing them up to a cloud service like Amazon Cloud, Google Drive or iCloud, or by backing up to an external drive.

That said, you’ll want to be careful with how you back up your content. That’s because, according to Kaspersky Lab’s Ryan Naraine, some ransomware can infect your backups.

Naraine warns against staying logged into your cloud service all the time, as some forms of malware can lock you out of even them. What’s more, if you’re backing up to an external hard drive, you’ll want to disconnect it from your PC when you’re finished, or the ransomware could lock that, as well.

Naraine also says you should disconnect your computer from the internet if you see your system being actively encrypted. Doing so, he explains, could prevent all of your files that have yet to be encrypted from being locked.

Above all, every expert I spoke with recommended installing some form of anti-virus software and some kind of web browser filtering. With both types of software installed, your system up to date, and a backup available, you should be well-protected.

Oh, and for the love of god, avoid downloading any suspicious files or visiting sketchy websites.

What to do if you’re infected

Please read more here: https://www.yahoo.com/news/what-to-do-r ... 57871.html


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