What Is Grader Mac Virus
Grader is an app for Mac that has been detected by anti-malware programs as a PUP or Potentially Unwanted Program. These types of applications have the one and only goal of causing multiple problems for your Mac. The problems that may be caused on your macOS as a result of Grader being installed are mainly related to the advertisements this application could start to display. These ads are made solely to generate profits to the creators of Grader Mac adware. This is the main reason to consider this app risky, because you have no way of knowing if the ads it shows will lead to safe places.
Read this article to learn more about Grader plus how you can remove this nasty app from your Mac.
Grader Summary
| Name | Grader |
| Type | Browser Hijacker / PUP |
| Short Description | Aims to modify the settings on your web browser in order to get it to cause browser redirects and display different advertisements. |
| Symptoms | Your web browser begins to display various types of online advertisements, which results in slowing down of your computer. |
| Distribution Method | Bundled downloads. Web pages which may advertise it. |
| Detection Tool |
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User Experience | Join Our Forum to Discuss Grader. |
Grader Mac PUP – More Information
Grader is the type of application that may show unwanted advertisements on your Mac. To achieve this goal, this app could act in a similar way to other such adware, like WebWatcher, Glims and Macfly Pro.
Grader could end up being installed on your Mac by being optionally included to the setups of other freeware applications. This is known as software bundling. The way it works is you could encounter Grader mac adware to be advertised in one of the installation steps as a “free extra” or “optional offer” that is included in the current install. And it is not easy to detect those steps either, because they are often hidden in the “Custom” or “Advanced” installation options.
The main activity of Grader is focused around the many ads it may display on your Mac. These ads do include the following:
- Search result ads.
- Pop-ups.
- Redirections.
- Ads, embedded in text.
- Banner promotions.
- Push pop-ups.
These ads and Grader itself may drop small objects on your Mac, known as trackers. This includes cookies, tags, geo-location objects and others. Such are used to get information concerning your online activities:
- The web pages you have visited.
- Which sites are your bookmarks.
- Where you click online.
- What is your browsing history.
These trackers may stay for a long time on your Mac and they may often be tricky to delete. But they are not the primary risk that is associated with Grader virus. The main problem why this app is considered a risk is that it may lead to different dangerous websites, such as:
- Virus pages or domains.
- Phishing.
- Survey frauds.
- Scams.
- Fake Tech Support
This is the main reason Grader is indirectly dangerous for your computer and should be removed from it.
Remove Grader from Your Device
Grader is the type of application that can be a bit tricky to delete. One way to do this manually is to follow the removal guide for Mac posted beneath. It is created so that it can help you delete this app from your browsers and macOS, but it takes some experience to follow the steps. If you want an effective and automatic solution, then we would advise what most experts do and that is to download and run a scan of your Mac using an advanced anti-malware software. Such a program has the capability of effectively ensuring that apps, like Grader are completely removed from your Mac and it stays safe from most malware and adware.
Ventsislav Krastev
Ventsislav is a cybersecurity expert at SensorsTechForum since 2015. He has been researching, covering, helping victims with the latest malware infections plus testing and reviewing software and the newest tech developments. Having graduated Marketing as well, Ventsislav also has passion for learning new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management, Network Administration and Computer Administration of System Applications, he found his true calling within the cybersecrurity industry and is a strong believer in the education of every user towards online safety and security.
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Steps to Prepare Before Removal:
Before starting to follow the steps below, be advised that you should first do the following preparations:
- Backup your files in case the worst happens.
- Make sure to have a device with these instructions on standy.
- Arm yourself with patience.
- 1. Scan for Mac Malware
- 2. Uninstall Risky Apps
- 3. Clean Your Browsers
Step 1: Scan for and remove Grader files from your Mac
When you are facing problems on your Mac as a result of unwanted scripts and programs such as Grader, the recommended way of eliminating the threat is by using an anti-malware program. SpyHunter for Mac offers advanced security features along with other modules that will improve your Mac’s security and protect it in the future.
Quick and Easy Mac Malware Video Removal Guide
Bonus Step: How to Make Your Mac Run Faster?
Mac machines maintain probably the fastest operating system out there. Still, Macs do become slow and sluggish sometimes. The video guide below examines all of the possible problems that may lead to your Mac being slower than usual as well as all of the steps that can help you to speed up your Mac.
Step 2: Uninstall Grader and remove related files and objects
1. Hit the ⇧+⌘+U keys to open Utilities. Another way is to click on “Go” and then click “Utilities”, like the image below shows:
2. Find Activity Monitor and double-click it:
3. In the Activity Monitor look for any suspicious processes, belonging or related to Grader:
4. Click on the "Go" button again, but this time select Applications. Another way is with the ⇧+⌘+A buttons.
5. In the Applications menu, look for any suspicious app or an app with a name, similar or identical to Grader. If you find it, right-click on the app and select “Move to Trash”.
6. Select Accounts, after which click on the Login Items preference. Your Mac will then show you a list of items that start automatically when you log in. Look for any suspicious apps identical or similar to Grader. Check the app you want to stop from running automatically and then select on the Minus (“-“) icon to hide it.
7. Remove any leftover files that might be related to this threat manually by following the sub-steps below:
- Go to Finder.
- In the search bar type the name of the app that you want to remove.
- Above the search bar change the two drop down menus to “System Files” and “Are Included” so that you can see all of the files associated with the application you want to remove. Bear in mind that some of the files may not be related to the app so be very careful which files you delete.
- If all of the files are related, hold the ⌘+A buttons to select them and then drive them to “Trash”.
In case you cannot remove Grader via Step 1 above:
In case you cannot find the virus files and objects in your Applications or other places we have shown above, you can manually look for them in the Libraries of your Mac. But before doing this, please read the disclaimer below:
1. Click on "Go" and Then "Go to Folder" as shown underneath:
2. Type in "/Library/LauchAgents/" and click Ok:
3. Delete all of the virus files that have similar or the same name as Grader. If you believe there is no such file, do not delete anything.
You can repeat the same procedure with the following other Library directories:
→ ~/Library/LaunchAgents
/Library/LaunchDaemons
Tip: ~ is there on purpose, because it leads to more LaunchAgents.
Step 3: Remove Grader – related extensions from Safari / Chrome / Firefox
Grader-FAQ
What is Grader on your Mac?
The Grader threat is probably a potentially unwanted app. There is also a chance it could be related to Mac malware. If so, such apps tend to slow your Mac down significantly and display advertisements. They could also use cookies and other trackers to obtain browsing information from the installed web browsers on your Mac.
Can Macs Get Viruses?
Yes. As much as any other device, Apple computers do get malware. Apple devices may not be a frequent target by malware authors, but rest assured that almost all of the Apple devices can become infected with a threat.
What Types of Mac Threats Are There?
According to most malware researchers and cyber-security experts, the types of threats that can currently infect your Mac can be rogue antivirus programs, adware or hijackers (PUPs), Trojan horses, ransomware and crypto-miner malware.
What To Do If I Have a Mac Virus, Like Grader?
Do not panic! You can easily get rid of most Mac threats by firstly isolating them and then removing them. One recommended way to do that is by using a reputable malware removal software that can take care of the removal automatically for you.
There are many Mac anti-malware apps out there that you can choose from. SpyHunter for Mac is one of the reccomended Mac anti-malware apps, that can scan for free and detect any viruses. This saves time for manual removal that you would otherwise have to do.
How to Secure My Data from Grader?
With few simple actions. First and foremost, it is imperative that you follow these steps:
Step 1: Find a safe computer and connect it to another network, not the one that your Mac was infected in.
Step 2: Change all of your passwords, starting from your e-mail passwords.
Step 3: Enable two-factor authentication for protection of your important accounts.
Step 4: Call your bank to change your credit card details (secret code, etc.) if you have saved your credit card for online shopping or have done online activiites with your card.
Step 5: Make sure to call your ISP (Internet provider or carrier) and ask them to change your IP address.
Step 6: Change your Wi-Fi password.
Step 7: (Optional): Make sure to scan all of the devices connected to your network for viruses and repeat these steps for them if they are affected.
Step 8: Install anti-malware software with real-time protection on every device you have.
Step 9: Try not to download software from sites you know nothing about and stay away from low-reputation websites in general.
If you follow these reccomendations, your network and Apple devices will become significantly more safe against any threats or information invasive software and be virus free and protected in the future too.
More tips you can find on our MacOS Virus section, where you can also ask any questions and comment about your Mac problems.
About the Grader Research
The content we publish on SensorsTechForum.com, this Grader how-to removal guide included, is the outcome of extensive research, hard work and our team’s devotion to help you remove the specific macOS issue.
How did we conduct the research on Grader?
Please note that our research is based on an independent investigation. We are in contact with independent security researchers, thanks to which we receive daily updates on the latest malware definitions, including the various types of Mac threats, especially adware and potentially unwanted apps (PUAs).
Furthermore, the research behind the Grader threat is backed with VirusTotal.
To better understand the threat posed by Mac malware, please refer to the following articles which provide knowledgeable details.