Marketplace Membership
Sign in Try free
Setapp logo
Home Marketplace Membership How it works Solve with AI+ Pricing Blog About Setapp
Sign in

Three signs your Mac has a virus

How to check Mac for malware

Only a decade ago, a “Mac virus” didn’t sound like something that existed in the real world. Today, we have Silver Sparrow, ThiefQuest, and other notorious viruses that can seriously affect your Mac’s performance, or worse, make it unusable. 

Anti-malware tools for Mac
Red flags you shouldn’t ignore

Even the trickiest virus can’t hide well. There will be red flags, and the earlier you recognize them, the faster you’ll fix the problem.  

  • Your Mac is slow. We mean painfully slow. If you manage to pour yourself a cup of coffee and check Instagram before the app loads, something is wrong. 

  • You see ads in unexpected places. Adware is a common type of malware that parasitizes the web, earning money on ad clicks. If you fall prey to adware, you’ll see lots of ads and pop-ups both on the web and in apps. 

  • You get weird warnings. If you start getting more and more errors and warning notes that stop you from accessing personal files, this is most certainly malware. 

Run a security check 

Honestly, in most cases, we are at fault. Since not every Mac user is even aware of the good cybersecurity practices, we make mistakes that can cost us our Mac’s health. 

And sometimes, mistakes are unavoidable. For example, developers tend to disable Gatekeeper to be able to install and run certain apps. If they forget to turn it back on, they might get their Mac infected with malware. 

Pareto Security can check your security configurations and quickly identify the weak spots. It will let you know if you need to turn on FileVault, Gatekeeper, or Firewall to protect your Mac from possible cyberattacks. 



Run a malware scan 

CleanMyMac X has a malware removal tool that not only finds malware, it can help you delete it immediately. So if your Mac gets into trouble, no worries, it’s not the end of the world. Open Malware Removal in CleanMyMac X and run a quick scan. If you’re used to running smart scans with CleanMyMac X — great! These scans check for malware, too. 



Hope this use case will help you solve tasks faster, and enjoy solving them, too! Check out more use cases picked for you below. 

More reads for you

Cybersecurity checklist
How to keep your Mac safe and sound
Monterey privacy perks
Do we really get a built-in VPN?
Setapp logo

Company

  • Home
  • All apps
  • How it works
  • Pricing
  • About Setapp
  • Download Setapp
  • Getting started with Setapp
  • Uninstall Setapp

Helpful

  • Support
  • Trust center
  • Join as a developer
  • Setapp reviews
  • Affiliate program
  • Blog

Inside the blog

  • Editorial process
  • How we evaluate apps
  • Human writing
  • Write for us

Best apps

  • VPN for Mac
  • YouTube downloader for Mac
  • Screen recorder for Mac
  • Recovery software for Mac
  • Password manager for Mac
  • Video editing software for Mac
  • Note–taking app for Mac
  • Terminal for Mac
  • Calendar app for Mac
  • Remote desktop for Mac
  • Cloud backup for Mac
  • Screenshot tool for Mac
  • Antivirus for Mac
  • Browser for Mac

Our best content

  • All macOS versions
  • All iOS versions
  • MacBook generations in order
  • iPhone releases in order
  • iPad generations in order
  • AirPods generations in order

How to's

  • View clipboard history on Mac
  • Change folder icon or color on Mac
  • Recover deleted iPhone photos
  • Access unrecognized external drive
  • Access your Mac remotely
  • Use recovery mode on Mac
  • View and kill processes on Mac
  • Stop Mac from sleeping
  • Check MacBook temperature
  • Fix frozen Mac
  • Reset iPhone
  • Reset iPad

Our tools

  • Apple serial number
  • iPhone serial number
  • Mac serial number
  • iPad serial number
  • AirPods serial number
  • Apple Watch serial number
  • Apple warranty number
  • Mac warranty checker
  • iPad warranty checker
  • HEIC to JPG
  • HEIC to PNG
  • HEIC to PDF
  • GPTs for Mac

Updates from our team, written with love

Love is coming your way, soon. This doesn’t look right, please try again. Try once more, our server fell asleep for a bit.
I agree to receive emails from Setapp as per this Privacy Notice.
Please select the checkbox to continue.
Need help? Terms of Use Privacy Notice
© 2026 MacPaw Way Ltd., 25 Serifou, Allure Center 11, Office No. 11-12, 2nd Floor, 3046 Zakaki, Limassol, Cyprus
Sweet, let’s get you started
or sign in with
Apple icon
Google icon
Create a strong password
Come up with a unique password for your Setapp account:
  • 8 characters minimum.
  • At least 1 uppercase letter.
  • At least 1 lowercase letter.
What should we call you?
Continue with new account:
Captcha is required