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How we go deeper to protect you from new threats

New! Read our free whitepaper about F-Secure DeepGuard, our proactive protection against new and emerging threats. Read it here.

You may know that F-Secure won the Best Protection Award – twice in a row. But if you’ve ever wondered about how we actually go about protecting our customers from malware, this post is for you. We do it by going deeper. Let me explain.

Traditional antivirus software looks at the outward characteristics of files to see if the characteristics match those of previously seen malware files. If they match, the antivirus program knows to block the file.

For this system to work, antivirus labs need to have a sample of the malware file in order to analyze its characteristics so they know exactly what they need to block.

This is a very effective method for blocking most malware seen to date, and this is how F-Secure protects you from existing malware we already know about.

Of course, it takes time for antivirus labs to receive a malware sample and analyze it so we can effectively block it. That means brand new malware created just in the past few days or weeks that we haven’t yet had a chance to analyze, can get past traditional scanning systems.

Complicating the issue, cybercriminals who create malware nowadays are very clever at avoiding detection by antivirus programs. One way they do this is by creating new, different variants of their malware. These variants are still the same malware at the core, but they appear new and different on the outside. Like a criminal who dresses in disguise to avoid being recognized, the malware file is disguised to avoid detection by antivirus software. There are automated malware creation kits that do this for the cybercriminals, making it easy to spit out thousands of new variants.

To be able to protect from brand new malware, then, and to protect from all the new variants of existing malware, it is crucial for F-Secure’s software to be able to detect a malware file even before our Labs have ever received a sample of it.

So how do we block malware strains we’ve never seen? We examine not just a file’s outward characteristics, but we also monitor its behavior for suspicious activity. Like I said, malware can change in appearance and characteristics. But one thing never changes: Malware always does malicious things. So if we’re not sure if a file is malicious or not, we watch to see how the program behaves.

We call our behavioral analysis technology DeepGuard. DeepGuard observes a program’s behavior and prevents potentially harmful actions from successfully completing. This way, we can block even brand new malware files that haven’t yet been analyzed. And we can stop malicious files that are disguised as something else.

When the user opens a file, any file, DeepGuard instantaneously checks for suspicious behavior, and if it finds something, it will block the program from launching. Since some malware hide their malicious behavior until after the program launches, DeepGuard still continues monitoring programs while they are running, watching for and blocking suspicious actions.

DeepGuard is a feature of F-Secure’s products, working in tandem with our other protection layers (browsing protection, traditional signature scanning, file reputation analysis, and prevalence rate checking) to provide the very best protection. Our newest version, DeepGuard 5 with exploit protection, has already been rolled out, so customers with the latest versions of F-Secure products are already benefiting from the latest technology.

And that’s how we protect you.

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How “the Cloud” Keeps you Safe

“The cloud” is a big thing nowadays. It’s not exactly a new concept, but tech companies are relying on it more and more. Many online services that people enjoy use the cloud to one extent or another, and this includes security software. Cloud computing offers unique security benefits, and F-Secure recently updated F-Secure SAFE to take better advantage of F-Secure’s Security Cloud. It combines cloud-based scanning with F-Secure’s award-winning device-based security technology, giving you a more comprehensive form of protection. Using the cloud to supplement device-based scanning provides immediate, up-to-date information about threats. Device-based scanning, which is the traditional way of identifying malware, examines files against a database saved on the device to determine whether or not a file is malicious. This is a backbone of online protection, so it’s a vital part of F-Secure SAFE. Cloud-based scanning enhances this functionality by checking files against malware information in both the local database found on devices, and a centralized database saved in the cloud. When a new threat is detected by anyone connected to the cloud, it is immediately identified and becomes "known" within the cloud. This ensures that new threats are identified quickly and everyone has immediate access to the information, eliminating the need to update the database on devices when a new threat is discovered. Plus, cloud-based scanning makes actual apps easier to run. This is particularly important on mobile devices, as heavy anti-virus solutions can drain the battery life and other resources of devices. F-Secure SAFE’s Android app has now been updated with an “Ultralight” anti-virus engine. It uses the cloud to take the workload from the devices, and is optimized to scan apps and files with a greater degree of efficiency. Relying on the cloud gives you more battery life, and keeps you safer. The latest F-Secure SAFE update also brings Network Checker to Windows PC users. Network Checker is a device-based version of F-Secure’s popular Router Checker tool. It checks the Internet configuration your computer uses to connect to the Internet. Checking your configuration, as opposed to just your device, helps protect you from attacks that target home network appliances like routers – a threat not detected by traditional anti-virus products. So the cloud is offering people much more than just extra storage space. You can click here to try F-Secure SAFE for a free 30-day trial if you’re interested in learning how F-Secure is using the cloud to help keep people safe. [Image by Perspecsys Photos | Flickr]

June 30, 2015
BY 
money, burnt, online, internet, scams

The 5 Internet scams your kid or mom is most likely to fall for

There wouldn't be billions people online every moment of every day if everyone was getting scammed all the time. Online security is, in many ways, better than ever, as are the sites designed to attract our attention. But exploits and the crooks that want to exploit us still exist, enjoying advanced malware-as-service models proven to steal our data, time and money. And with the awesome number of people online, scams only need to work a tiny percentage of the time to make the bad guys rich. We're sure you're savvy enough to avoid most trouble. But for everyone else you know, here are 5 common scams to look out for. 1. Ransomware. This scam, which F-Secure Labs has been tracking for over 5 years, prospers because it offers incredible returns -- to the scammer. "It estimated it would cost $5,900 (£3,860) to buy a ransomware kit that could return up to $90,000 in one month of operation," the BBC reports. It works like this. You suddenly get a message saying that your files are being held and you need to pay a ransom to release them. Sometimes the scam pretends to be from a police organization to make them extra scary: Anonymous cyber-currencies like bitcoin have made the scam even more appealing. "That's what really enabled the ransomware problem to explode," our Mikko Hypponen said. "Once the criminals were able to collect their ransom without getting caught, nothing was stopping them." They really do take your files and they generally will give them back. Ironically, their reputation matters since people will stop paying if they hear it won't work. Mikko recommends four ways to defend yourself from this -- and almost every scam: Always backup your important files. Ensure software is up-to-date. Be suspicious of message attachments and links in email. Always run updated comprehensive security software. He adds, "Don't pay money to these clowns unless you absolutely have to." 2. Technical support scams. "In a recent twist, scam artists are using the phone to try to break into your computer," reports the U.S. Federal Trade Commission. "They call, claiming to be computer techs associated with well-known companies like Microsoft. They say that they’ve detected viruses or other malware on your computer to trick you into giving them remote access or paying for software you don’t need." Never give anyone who calls you unsolicited your private information or access to your computer. As a matter a fact, don't do that even if the call is solicited. If you feel the call may actually important, ask who they are calling from and then contact the organization directly. For more tips visit the FTC site. 3. Facebook freebies. Free iPad! Free vacation! Free gift card! If it's free, it's on Facebook and it comes from someone you do not know or trust directly, assume it's a scam. At best it's a waste of your time, at worst it could end up costing you money. Unfortunately, there are only two things you can do to avoid these scams. Don't follow people who share crap like this on Facebook and don't click on things that seem too good to be true. "There is no way a company can afford to give every Facebook user a $25.00, $50.00 or $100.00 gift card," Facecrooks, a site that monitors these scams, reminds you. "A little common sense here tells you that something is way off base." So be suspicious of everything on Facebook. Even friends asking for money. 4. Loan scams. Scammers are smart. They know that the more a person is in financial need, the more desperate she or he becomes. For this reason, loans of various kinds -- especially mortgages that are in foreclosure -- are often lures for a scam. Once they have your attention, they may use a variety of tactics to dupe you, the FTC explains. They may demand a fee to renegotiate your loans for lower payments or to do an "audit" of what you're paying. It may even go far enough that they'll ask you directly or trick you into signing over your house to ease the pressure from your creditors. There are many warning signs to look out for. Keep in mind that if you're ever in doubt, the best step is to back off and seek advice. You can also tell the person you're going to get a second opinion on this from a lawyer. If the person you're dealing with insists that you not or freaks out in any other way, it's a good sign you're being taken. 5. Money mule scams. These scams are a variation on the 419 scams where a foreign prince asks you to hold money for him. All you have to do is wire him some first. But in this case you may actually get the money and be used as a tool of organized crime. A money mule illegally transfers money for someone in exchange for some of the take. Many law-abiding people get drawn into this crime while searching for jobs or romance, which is why your should stick to legitimate sites if you're seeking either of those things. Greed and the lure lottery winnings and inheritances is also used as a lure for potential victims. Trust is the most important thing on the internet. Anyone who trusts you too quickly with offers of money or love is probably scamming you. Cheers, Sandra [Image by epSos .de | Flickr]

June 24, 2015