You open your Mac and notice that your homepage has been changed, and you don’t remember changing it. Or suddenly, you see an avalanche of popups in your browser. These are some signs that your Mac may be infected with browser hijacker malware.
When a Mac is infected with a browser hijacker, a malicious program has taken over control of the web browser and changed its settings without your consent. While getting your computer infected by malware is not uncommon, it is something that you need to address immediately. You can either remove the malware yourself or get the help of a computer professional in your area.
Malware can cause harm in many ways, and if you run an online business, this is not a risk you want to take. Let us understand what a browser hijacker is, its risks, and how to remove it from your Mac.
What is a browser hijacker?
A browser hijacker is a malicious software that modifies a web browser’s settings without the user’s consent. Once installed, a browser hijacker can change the affected browser’s homepage, search engine, and default search engine, redirect the user to unwanted websites, display unwanted ads, and collect personal information.
The effects of a browser hijacker infection can include the following:
- Changes to the homepage and search engine: The browser hijacker may change the default homepage and search engine to a different one, usually a fake search engine that displays irrelevant or malicious search results.
- Redirects to unwanted websites: The browser hijacker may redirect the user to websites they didn’t intend to visit, often ones with malicious content or popup ads.
- Slow browsing and crashes: The browser hijacker may slow down the browsing experience and cause the browser to crash frequently.
- Popup ads: The browser hijacker may display popup ads on the web pages, often for fake software updates or other malicious downloads.
- Tracking and data theft: Some browser hijackers may track the user’s online activities and steal personal information, such as login credentials, credit card numbers, or browsing history.
Browser hijackers are often bundled with free software, and users may unknowingly agree to install them when they install the software. They can also be installed through social engineering techniques, such as fake update messages or popup ads.
Small businesses, in particular, are at risk of getting browser hijackers. They may be considered high-value targets by attackers because they often have access to sensitive customer and financial data.
They often have limited resources to devote to cybersecurity measures, making them more vulnerable to attacks. They may need more dedicated IT staff or the budget to invest in security software. They are also more likely to use outdated software, which can have security vulnerabilities that attackers can exploit.
If they have employees, small businesses may be unable to provide adequate training on preventing getting malware. Small businesses may not train their employees to identify and avoid potential threats, such as clicking on suspicious links or downloading malicious software.
Small businesses may need more resources to monitor their systems for potential threats, making it easier for attackers to go undetected.
Overall, small businesses need to be aware of the risks associated with browser hijackers and take steps to protect themselves, such as implementing security software, providing employee training, and keeping software up to date.
Risks of getting infected with a browser hijacker
Browser hijackers can be a nuisance. More than that, they are a security risk that can compromise the user’s privacy and security. It is essential to remove them as soon as they are detected.
There are several risks associated with getting a browser hijacker:
- Privacy risks: Browser hijackers can track your online activity, including search queries, browsing history, and personal information. They can then use this information for targeted advertising or sell it to third parties.
- Security risks: Some browser hijackers can install additional malware or viruses on your computer, which can compromise your system’s security and lead to data theft or loss. The malware can introduce security vulnerabilities into your computer, making it more vulnerable to attacks from other types of malware.
- Performance issues: Browser hijackers can slow down your browser and even your computer’s overall performance, making it difficult to use.
- Unwanted changes: Browser hijackers can change your browser’s settings, such as your homepage, default search engine, and bookmarks, without your consent. The experience of dealing with malware can be frustrating and make it difficult to use your browser as you usually would.
- Financial risks: Some browser hijackers can redirect you to fake or fraudulent websites, which can trick you into entering personal or financial information. This action can lead to identity theft or financial loss.
- Difficulty in removal: Hackers sometimes design browser hijackers to be difficult to remove, making it challenging for users to get rid of them. They can reinstall themselves even after being removed or leave behind traces that can continue to cause problems.
Steps to remove a browser hijacker
Overall, getting a browser hijacker can have serious consequences, and taking steps to prevent and remove them is essential.
If you believe your Mac has been infected with a browser hijacker, here are the steps you can follow to remove it:
- Quit the affected browser: The first step is to quit the affected browser, whether Safari, Chrome, or Firefox. Doing so can help prevent the hijacker from causing further damage to your system.
- Clear the browser cache and cookies: Open the browser again and clear its cache and cookies. This action will remove any unwanted extensions or add-ons that might have been installed without your knowledge.
- Check browser extensions and plugins: Go to the Extensions or Add-ons manager. Look for suspicious extensions you do not remember installing that might have been added to your Mac. Disable or remove them.
- Run a malware scan: Use reputable anti-malware software to scan your Mac for any malware or other harmful programs. Run a full system scan with your antivirus program to check for any malware or viruses that might be causing the problem. Running an anti-malware scan can help identify and remove any additional threats.
- Reset browser settings: If the problem persists, reset the browser settings to their default state. This will remove any unwanted settings, extensions, and plugins.
- Uninstall suspicious applications: Check your Applications folder for any suspicious applications that might have been installed without your knowledge. Uninstall them.
- Restart your Mac: Restart your Mac to ensure all changes take effect.
- Change all passwords: If you suspect the hijacker may have obtained your login credentials, change your passwords for any affected accounts, especially those that may have been compromised during the infection.
By following these steps, you should be able to remove any browser hijacker from your Mac.
Preventing browser hijacker infections on a Mac involves practicing safe browsing habits, such as avoiding suspicious websites, not clicking on suspicious links or popup ads, and only downloading software from trusted sources. Keeping the operating system and web browser up to date with the latest security patches can also help to prevent these types of infections.
