Is Your Mac Infected? Remove Malware And Viruses On Mac

author avatarIvelin Krastev Hours Posted on Hours Updated on

Before we dive in

Before we dive in, let's make sure you stay safe online. We created SpyHunter because your security matters to us.

Protect your computer today — download SpyHunter right here! Check out our top tips below to keep your computer safe and secure.

Download SpyHunter

Discovering that your Mac may be infected can be alarming. This article serves as a guide to identifying signs of malware and virus infections on your Mac and outlines practical steps for their removal.

Whether you’ve noticed unusual behavior in your system or want to ensure it remains secure, we’ll walk you through detecting and eliminating these threats.

Stay tuned to learn how to safeguard your Mac and keep it running smoothly, free from harmful software.

This Article Contains:

Signs your Mac has a virus

Recognizing the signs of a virus on your Mac is crucial for taking timely action to protect your system.

Despite Macs’ reputation for security, they are not immune to malware and viruses. This section will highlight key indicators that your Mac may be compromised, from sudden performance slowdowns to unexpected pop-up ads.

Understanding these signs will empower you to address potential threats before they escalate, ensuring your Mac remains safe and efficient.

Unexpected slow performance

A noticeable decline in your Mac’s performance serves as a clear and concerning signal that your system might be harboring malware.

When your once-responsive Mac starts exhibiting sluggish behavior, with applications taking an eternity to open or tasks hanging in the middle of execution, it’s time to investigate, as these symptoms often point to suspicious software covertly operating in the background.

slow mac computer moving with snail pace

The slowdown in performance results from malicious programs siphoning off your system’s resources for their activities.

These resource-hungry invaders can monopolize your CPU, RAM, and storage, causing a strain on your Mac’s capabilities. As a result, even routine tasks that used to be executed seamlessly may now feel like laborious chores.

Recurring crashes or error messages

Should your system frequently show the rainbow-colored spinning wheel, or if there are regular unexpected reboots, these could indicate that a virus is interfering with your system’s normal function.

Error messages that appear without reason can similarly suggest something is amiss.

Unusual fan activity

Unusual fan activity can be a sign of malware or a virus on your Mac. If your computer’s fans suddenly speed up or make constant noise without heavy use, this could mean malicious software is using your system’s resources.

Malware works in the background, causing your fans to work harder to cool down the increased heat from the extra activity.

Paying attention to this sign and acting quickly can help prevent further damage and keep your Mac running smoothly.

Annoying pop-ups and unrequested applications

If you notice a sudden surge in annoying pop-up ads, or if advertisement windows pop up on your desktop seemingly unrelated to any browsing you’re doing or any programs running, it could be the work of a virus.

Similarly, if you find new toolbars on your browser that you didn’t install or are redirected to spam advertising pages, these could be symptoms of a malware infection.

How to check for viruses on a Mac

If you are experiencing any of the symptoms mentioned above, it’s crucial to check your Mac for possible virus infections. One of the easiest ways to do this is using reliable anti-malware software.

You can manually monitor suspicious applications using the Activity Monitor or clear your browser’s cache to remove any harmful cookies or cache memory.

Utilize anti-malware software

An anti-malware software like SpyHunter for Mac is crucial for protecting your Mac from various threats. Using a legitimate antivirus app makes Mac virus removal accessible to any user.

SpyHunter specializes in detecting and removing Mac malware, including viruses, spyware, adware, and potentially unwanted programs (PUPs). It runs a deep virus scan on your system to find and isolate or delete malware.

remove malware, trojans, and other threats with spyhunter

With its real-time protection, the SpyHunter virus scanner monitors your system for suspicious activities, offering an active defense against new threats and helping to keep your Mac secure and performing well. Download SpyHunter and scan your Mac for malware now!

Monitor suspicious apps via Activity Monitor

The Activity Monitor on your Mac is a critical tool for spotting potential malware. It gives you a real-time look at all running processes and applications, making it easier to spot unusual behavior.

Malicious programs often use more CPU power as they run in the background. By checking the CPU, memory, and energy usage, you can identify any process using too much power, which might be a sign of malware.

the activity monitor app on macos on the cpu tab

If you find any process that looks suspicious or uses a lot of resources, it’s worth investigating further.

Keep an eye out for processes with names that are trying to mimic legitimate ones, and don’t hesitate to look them up if you’re unsure.

Check for suspicious browser extensions

Malware attacks can take less malicious forms and come packaged as browser hijackers and adware.

Suspicious extensions can hijack your searches, cause bad redirects and alter your home page or default search engine.

Check the extensions tab or sub-menu in your browser of choice and scan the list of installed extensions for any unfamiliar names or entries you don’t remember approving or installing. Those will usually be malicious browser extensions functioning as hijackers or adware.

An antivirus program should be able to detect not only Mac viruses but also similar unwanted browser extensions.

Clearing the browser’s cache

If you encounter frequent pop-up ads or redirection to unwanted websites, clearing your browser’s cache might be a good idea.

Viruses can often burrow into your browser’s cache memory to perform malicious activities. Removing your browser’s cache and cookies can help eliminate these unwanted threats.

How to remove malware from a Mac for free

Once you have identified that your Mac is infected with a virus, the next step is removing malware already discovered.

Some of these measures are deleting suspicious files permanently, restoring an old version of your Mac using Time Machine, or factory resetting your Mac.

Remember, ensuring the virus is wholly eliminated is crucial to prevent unwanted consequences like data or financial theft, ransomware, and malware spreading to other devices.

Delete suspicious files permanently

After detecting a virus, it’s essential to permanently delete all suspicious and malicious files.

Use trusted antivirus software like SpyHunter for Mac to scan your system thoroughly and locate these harmful files.

To perform a complete anti-malware scan, follow these steps:

remove malware, viruses, and potentially unwanted programs with spyhunter for mac

Additionally, you could manually search for them through Finder. But proceed cautiously, as deleting essential system files might cause severe issues to your Mac.

Restore from a backup

If you regularly back up your Mac using Time Machine, you can restore an old version of your system to eradicate all traces of the virus.

Be aware that this option will revert any changes you’ve made since the last backup, which may lead to losing some data.

Though it’s a relatively quick and easy method, it’s only recommended if the infection is severe or complex to remove manually.

Restore the Mac to factory settings

In worst-case scenarios, when the virus has deeply infiltrated your system, it might be necessary to factory reset your Mac.

This approach should ideally be your last resort after all other failed methods. It involves completely wiping your Mac and reinstalling MacOS, eliminating all possible virus traces.

However, back up any essential files or data before proceeding, as this step will erase everything on your Mac.

What to do if your Mac has a virus

When you realize that your Mac has been infected with a virus or malware, it is essential to take quick action to remove the infection and prevent any potential damage. Mac malware removal is not as complicated as you might think.

Here are several steps you can take to mitigate any possible harmful consequences:

  • Limit your internet connection: When your Mac is infected, it’s advisable to stay offline as much as you can. This action is intended to prevent the malware from communicating with its command and control server or spreading to other devices connected to the same network. It also reduces the chances of data leakage to the malware server or further system compromise.
  • Boot your Mac in Safe Mode: Booting your Mac in Safe Mode can also be beneficial. Safe Mode is a diagnostic mode designed for troubleshooting purposes. It starts your Mac in a basic state with only necessary services running and can often prevent the virus or malware from getting activated.
  • Avoid typing sensitive information: You should immediately stop inputting passwords, login details, or any other sensitive information into your Mac until the threat has been appropriately addressed. This precautionary measure prevents the malware from recording and transmitting your data to cybercriminals.
  • Inform your bank and financial institutions: Alert your financial institutions about the infection and follow their advice on how to proceed. They often have protocols to handle such situations and can provide you with the necessary guidance and support for safeguarding your accounts and financial data.
Share this post on your favorite social media
author avatar

Ivelin is a Mac security expert who works hard to keep computers safe. He helps develop SpyHunter for Mac, a tool that fights off new cyber threats. With a lot of experience, Ivelin knows a lot about keeping Macs safe and makes sure people can use their computers without worry.

Keep Your Mac Fast and Secure
Optimize your Mac and stay malware-free with SpyHunter
Download SpyHunter For Free

For a better understanding of our policies, please review our Free Trial Offer below, EULA, and Privacy/Cookie Policy.

SpyHunter Free Trial: Important Terms & Conditions

The SpyHunter Trial version includes, for one device, a one-time 7-day Trial period for SpyHunter 5 Pro (Windows) or SpyHunter for Mac, offering comprehensive malware detection and removal functionality, high-performance guards to actively protect your system from malware threats, and access to our technical support team via the SpyHunter HelpDesk. You will not be charged upfront during the Trial period, although a credit card is required to activate the Trial. (Prepaid credit cards, debit cards, and gift cards are not accepted under this offer.) The requirement for your payment method is to help ensure continuous, uninterrupted security protection during your transition from a Trial to a paid subscription should you decide to purchase. Your payment method will not be charged a payment amount upfront during the Trial, although authorization requests may be sent to your financial institution to verify that your payment method is valid (such authorization submissions are not requests for charges or fees by EnigmaSoft but, depending upon your payment method and/or your financial institution, may reflect on your account availability). You can cancel your Trial by contacting EnigmaSoft’s payment processor (identified in your confirmation email) or EnigmaSoft directly no later than two business days before the 7-day Trial period expires to avoid a charge coming due and being processed immediately after your Trial expires. If you decide to cancel during your Trial, you will immediately lose access to SpyHunter. If, for any reason, you believe a charge was processed that you did not wish to make (which could occur based on system administration, for example), you may also cancel and receive a full refund for the charge any time within 30 days of the date of the purchase charge. See FAQs.

At the end of the Trial, you will be billed upfront immediately at the price and for the subscription period as set forth in the offering materials and registration/purchase page terms (which are incorporated herein by reference; pricing may vary by country per purchase page details) if you have not timely canceled. Pricing typically starts at $72 for 3 months (SpyHunter Pro Windows) and $42 for 3 months (SpyHunter for Mac). Your purchased subscription will be automatically renewed in accordance with the registration/purchase page terms, which provide for automatic renewals at the then applicable standard subscription fee in effect at the time of your original purchase and for the same subscription time period, provided you’re a continuous, uninterrupted subscription user. Please see the purchase page for details. Trial subject to these Terms, your agreement to EULA/TOS, Privacy/Cookie Policy, and Discount Terms. If you wish to uninstall SpyHunter, learn how.

For payment on the automatic renewal of your subscription, an email reminder will be sent to the email address you provided when you registered before your next payment date. At the onset of your trial, you will receive an activation code that is limited to use for only one Trial and for only one device per account. Your subscription will automatically renew at the price and for the subscription period in accordance with the offering materials and registration/purchase page terms (which are incorporated herein by reference; pricing may vary by country per purchase page details), provided that you are a continuous, uninterrupted subscription user. For paid subscription users, if you cancel, you will continue to have access to your product(s) until the end of your paid subscription period. If you wish to receive a refund for your then current subscription period, you must cancel and apply for a refund within 30 days of your most recent purchase, and you will immediately stop receiving full functionality when your refund is processed.

For CALIFORNIA CONSUMERS, please see the notice provisions:
NOTICE TO CALIFORNIA CONSUMERS: Per the California Automatic Renewal Law, you may cancel a subscription as follows:

  1. Go to www.enigmasoftware.com and click the "Login" button at the top right corner.
  2. Log in with your username and password.
  3. In the navigation menu, go to "Order/Licenses." Next to your order/license, a button is available to cancel your subscription if applicable. Note: If you have multiple orders/products, you will need to cancel them on an individual basis.

Should you have any questions or problems, you can contact our EnigmaSoft support team by phone at +1 (888) 360-0646 (USA Toll-Free) / +353 76 680 3523 (Ireland/International) or by email at support@enigmasoftware.com.
How do you cancel a SpyHunter Trial? If your SpyHunter Trial was registered via MyCommerce, you can cancel the trial via MyCommerce by logging into the MyAccount section of MyCommerce (see your confirmation email for further details). You can also contact MyCommerce by phone or email to cancel. To contact MyCommerce via phone, you can call +1-800-406-4966 (USA Toll-Free) or +1-952-646-5022 (24x7x356). You can contact MyCommerce by e-mail at ordersupport@mycommerce.com. You can easily identify if your trial was registered via MyCommerce by checking the confirmation emails that were sent to you upon registration. Alternatively, all users may also contact EnigmaSoft Limited directly. Users can contact our technical support team by emailing support@enigmasoftware.com, opening a ticket in the SpyHunter HelpDesk, or calling +1 (888) 360-0646 (USA) / +353 76 680 3523 (Ireland/International). You can access the SpyHunter HelpDesk from SpyHunter's main screen. To open a support ticket, click on the "HelpDesk" icon. In the window that appears, click the "New Ticket" tab. Fill out the form and click the "Submit" button. If you are unsure of what "Problem Type" to select, please choose the "General Questions" option. Our support agents will promptly process your request and respond to you.

———

SpyHunter Purchase Details
You also have the choice of subscribing to SpyHunter immediately for full functionality, including malware removal and access to our support department via our HelpDesk, typically starting at $42 for 3 months (SpyHunter Basic Windows) and $42 for 3 months (SpyHunter for Mac) in accordance with the offering materials and registration/purchase page terms (which are incorporated herein by reference; pricing may vary by country per purchase page details). Your subscription will automatically renew at the then applicable standard subscription fee in effect at the time of your original purchase subscription and for the same subscription time period, provided you’re a continuous, uninterrupted subscription user and for which you will receive a notice of upcoming charges before the expiration of your subscription. Purchase of SpyHunter is subject to the terms and conditions on the purchase page, EULA/TOS, Privacy/Cookie Policy and Discount Terms.

———

General Terms
Any purchase for SpyHunter under a discounted price is valid for the offered discounted subscription term. After that, the then applicable standard pricing will apply for automatic renewals and/or future purchases. Pricing is subject to change, although we will notify you in advance of price changes.
All SpyHunter versions are subject to your agreeing to our EULA/TOS, Privacy/Cookie Policy, and Discount Terms. Please also see our FAQs and Threat Assessment Criteria. If you wish to uninstall SpyHunter, learn how.