Categories
Cybersecurity

Signs That Your Computer May Be Infected with Malware

Approximately 34% of businesses take a week or longer to regain access to their data and systems once hit with a malware attack.

Malware is an umbrella term that encompasses many different types of malicious code. It can include:

  • Viruses
  • Ransomware
  • Spyware
  • Trojans
  • Adware
  • Key loggers
  • And more

The longer that malware sits on your system unchecked, the more damage it can do. Most forms of malware have a directive built in to spread to as many systems as possible. So, if not caught and removed right away, one computer could end up infecting 10 more on the same network in no time.

Early detection is key so you can disconnect an infected device from your network and have it properly cleaned by a professional. 

Keep an eye out for these key warning signs of malware infection so you can jump into action and reduce your risk.

STRANGE POPUPS ON YOUR DESKTOP

Some forms of malware can take on the disguise of being an antivirus app or warranty notice that pops up on your screen. Hackers try to mimic things that users may have seen from a legitimate program, so they’ll be more apt to click without thinking.

If you begin to see a strange “renew your antivirus” subscription alert or a warranty renewal that doesn’t quite make sense, these could be signs that your PC has been infected with adware or another type of malware.

NEW SLUGGISH BEHAVIOR

Computers can become sluggish for a number of reasons, including having too many browser tabs open at once or running a memory-intensive program. But you’ll typically know your computer and the types of things that slow it down.

If you notice new sluggish behavior that is out of the ordinary, this could be an infection. One example would be if you don’t have any programs open except notepad or another simple app, and yet you experience freezing.

When malware is running in the background, it can often eat up system resources and cause your system to get sluggish.

APPLICATIONS START CRASHING

Applications should not just crash out of the blue. There is always a reason. Either the software is faulty, there’s been an issue with an update, or something else may be messing with that application’s files.

If you suddenly experience apps crashing, requiring you to restart the app or reboot your system, this is another telltale sign that a virus, trojan, or other malicious code has been introduced.

YOUR BROWSER HOME PAGE IS REDIRECTED

If you open your browser and land on a homepage that is not the one you normally see, have your PC scanned for malware right away. Redirecting a home page is a common ploy of certain types of malware.

The malware will infect your system and change the system setting for your default browser home page. This may lead you to a site filled with popup ads or to another type of phishing site.

Just trying to change your homepage back in your settings won’t fix the situation. It’s important to have the malware removed.

SUDDEN REBOOTS

Another annoying trait of certain types of malicious code is to make your system reboot without warning. 

This can cause you to lose the work you’ve just done and can make it difficult to get anything done. This may happen when malware is changing core system files behind the scenes. With files corrupted, your system becomes unstable and can often reboot unexpectedly.

YOU’RE MISSING HARD DRIVE SPACE

If you find that a good deal of your hard drive space that used to be open is now gone, it could be a malware infection taking up your space. Some types of malware may make copies of files or introduce new files into your system.

They will cleverly hide, so don’t expect to see the word “malware” on a file search. Instead, the dangerous activities will usually be masked by a generic-sounding name that you mistake for a normal system file.

YOU RUN ACROSS CORRUPTED FILES

If you open a file and find it corrupted, this could be a red flag that ransomware or another form of malware has infected your system. 

While files can occasionally become corrupt for other reasons, this is a serious issue that deserves a thorough malware scan if you see it. 

PC “PROCESSING SOUNDS” WHEN THERE SHOULDN’T BE

Most of us are familiar with those “thinking sounds” when our computer is processing something memory intensive. You’ll usually hear a type of whirring that will go away once you finish that activity.

If you begin hearing this processing sound when you’re not doing anything particularly intense on your computer, this could be a sign that malware is running in the background and it should be checked out.

GET EXPERT MALWARE SCANNING & REMOVAL

Free online malware and virus scans aren’t very reliable. Instead, come to a professional that can ensure your entire system is cleaned properly.  If you suspect your computer may be infected with Malware, contact TN Techs.


Featured Image Credit

This Article has been Republished with Permission from The Technology Press.

Categories
Cybersecurity

Which Form of MFA Is the Most Secure? Which Is the Most Convenient?

Credential theft is now at an all-time high and is responsible for more data breaches than any other type of attack. 

With data and business processes now largely cloud-based, a user’s password is the quickest and easiest way to conduct many different types of dangerous activities.

Being logged in as a user (especially if they have admin privileges) can allow a criminal to send out phishing emails from your company account to your staff and customers. The hacker can also infect your cloud data with ransomware and demand thousands of dollars to give it back.

How do you protect your online accounts, data, and business operations? One of the best ways is with multi-factor authentication (MFA).

It provides a significant barrier to cybercriminals even if they have a legitimate user credential to log in. This is because they most likely will not have access to the device that receives the MFA code required to complete the authentication process.

WHAT ARE THE THREE MAIN METHODS OF MFA?

When you implement multi-factor authentication at your business, it’s important to compare the three main methods of MFA and not just assume all methods are the same. There are key differences that make some more secure than others and some more convenient.

Let’s take a look at what these three methods are:

SMS-BASED

The form of MFA that people are most familiar with is SMS-based. This one uses text messaging to authenticate the user.

The user will typically enter their mobile number when setting up MFA. Then, whenever they log into their account, they will receive a text message with a time-sensitive code that must be entered. 

ON-DEVICE PROMPT IN AN APP

Another type of multi-factor authentication will use a special app to push through the code. The user still generates the MFA code at login, but rather than receiving the code via SMS, it’s received through the app.

This is usually done via a push notification, and it can be used with a mobile app or desktop app in many cases.

SECURITY KEY

The third key method of MFA involves using a separate security key that you can insert into a PC or mobile device to authenticate the login. The key itself is purchased at the time the MFA solution is set up and will be the thing that receives the authentication code and implements it automatically.

The MFA security key is typically smaller than a traditional thumb drive and must be carried by the user to authenticate when they log into a system.

Now, let’s look at the differences between these three methods.

MOST CONVENIENT FORM OF MFA?

Users can often feel that MFA is slowing them down. This can be worse if they need to learn a new app or try to remember a tiny security key (what if they lose that key?).

This user inconvenience can cause companies to leave their cloud accounts less protected by not using multi-factor authentication.

If you face user pushback and are looking for the most convenient form of MFA, it would be the SMS-based MFA

Most people are already used to getting text messages on their phones so there is no new interface to learn and no app to install.

MOST SECURE FORM OF MFA?

If your company handles sensitive data in a cloud platform, such as your online accounting solution, then it may be in your best interest to go for security.

The most secure form of MFA is the security key.

The security key, being a separate device altogether, won’t leave your accounts unprotected in the event of a mobile phone being lost or stolen. Both the SMS-based and app-based versions would leave your accounts at risk in this scenario.

The SMS-based is actually the least secure because there is malware out there now that can clone a SIM card, which would allow a hacker to get those MFA text messages.

A Google study looked at the effectiveness of these three methods of MFA at blocking three different types of attacks. The security key was the most secure overall.

Percentage of attacks blocked:

  • SMS-based: between 76 – 100% 
  • On-device app prompt: between 90 – 100%
  • Security key: 100% for all three attack types

WHAT’S IN BETWEEN?

So, where does the app with an on-device prompt fit in? Right in between the other two MFA methods.

Using an MFA application that delivers the code via push notification is more secure than the SMS-based MFA. It’s also more convenient than needing to carry around a separate security key that could quickly become lost or misplaced.

LOOKING FOR HELP SETTING UP MFA AT YOUR COMPANY?

Multi-factor authentication is a “must-have” solution in today’s threat climate. Let’s discuss your barrier points and come up with a solution together to keep your cloud environment better secured. TN Techs has helped many customers successfully setup and streamline MFA, contact us today to discuss further!


Featured Image Credit

This Article has been Republished with Permission from The Technology Press.

Categories
Cybersecurity

6 Ways to Combat Social Phishing Attacks

Phishing is the number one method of attack delivery for everything from ransomware to credential theft. We are very aware of it coming by email, but other types of phishing have been growing rapidly.

In recent years, phishing over social media has skyrocketed by 500%. There has also been a 100% increase in fraudulent social media accounts.

Phishing over social media often tricks the victims because people tend to let their guard down when on social platforms like Facebook, Instagram, Twitter, and LinkedIn. They’re socializing and not looking for phishing scams.

However, phishing scammers are out there looking for you and will reach out via friend requests and direct messages. Learn several ways you can secure your social media use to avoid these types of covert attacks.

MAKE YOUR PROFILE PRIVATE ON SOCIAL PLATFORMS

Phishing scammers love public profiles on social media because not only can they gather intel on you to strike up a conversation, but they can also clone your profile and put up a fake page for phishing your connections.

Criminals do this in order to try to connect with those on your friends or connections list to send social phishing links that those targets will be more likely to click because they believe it’s from someone they know.

You can limit your risk by going into your profile and making it private to your connections only. This means that only someone that you’ve connected with can see your posts and images, not the general public.

For sites like LinkedIn where many people network for business, you might still want to keep your profile public, but you can follow the other tips below to reduce your risk.

HIDE YOUR CONTACTS/FRIENDS LIST

You can keep social phishing scammers from trying to use your social media profile to get to your connections by hiding your friends or connections list. Platforms like LinkedIn and Facebook both give you this privacy option. 

Just be aware that this does not keep scammers from seeing you as a friend or connection on someone else’s profile unless they too have hidden their friends list.

BE WARY OF LINKS SENT VIA DIRECT MESSAGE & IN POSTS

Links are the preferred way to deliver phishing attacks, especially over social media. Links in social posts are often shortened, making it difficult for someone to know where they are being directed until they get there. This makes it even more dangerous to click links you see on a social media platform.

A scammer might chat you up on LinkedIn to inquire about your business offerings and give you a link that they say is to their website. Unless you know the source to be legitimate, do not click links sent via direct message or in social media posts. They could be leading to a phishing site that does a drive-by download of malware onto your device.

Even if one of your connections shares a link, be sure to research where it is coming from. People often share posts in their own feeds because they like a meme or picture on the post, but they never take the time to check whether the source can be trusted.

DON’T PARTICIPATE IN SOCIAL MEDIA SURVEYS OR QUIZZES

While it may be fun to know what Marvel superhero or Disney princess you are, stay away from quizzes on social media. They’re often designed as a ploy to gather data on you. Data that could be used for targeted phishing attacks or identity theft.

The Cambridge Analytica scandal that impacted the personal data of millions of Facebook users did not happen all that long ago. It was found that the company was using surveys and quizzes to collect information on users without their consent.

While this case was high-profile, they’re by no means the only ones that play loose and fast with user data and take advantage of social media to gather as much as they can.

It’s best to avoid any types of surveys or quizzes on any social media platform because once your personal data is out there, there is no getting it back.

AVOID PURCHASING DIRECTLY FROM ADS ON FACEBOOK OR INSTAGRAM

Many companies advertise on social media legitimately, but unfortunately, many scammers use the platforms as well for credit card fraud and identity theft.

If you see something that catches your eye in a Facebook or Instagram ad, go to the advertiser’s website directly to check it out, do not click through the social ad.

RESEARCH BEFORE YOU ACCEPT A FRIEND REQUEST

It can be exciting to get a connection request on a social media platform. It could mean a new business connection or connecting with someone from your Alma mater. But this is another way that phishing scammers will look to take advantage of you. They’ll try to connect to you which can be a first step before reaching out direct via DM.

Do not connect with friend requests without first checking out the person on the site and online using a search engine. If you see that their timeline only has pictures of themself and no posts, that’s a big red flag that you should decline the request.

CAN YOUR DEVICES HANDLE A PHISHING LINK OR FILE?

It’s important to safeguard your devices with things like DNS filtering, managed antivirus, email filtering, and more. This will help protect you if you happen to click on a phishing link.

Contact TN Techs to find out how we can help!


Featured Image Credit

This Article has been Republished with Permission from The Technology Press.