How to Remove Malware on a Mac

While most viruses do not affect Macintosh computers, malware can cause problems on your computer if accidentally downloaded while browsing the Internet. Malware, also known as malicious software, is a program that can record your Internet activity (spyware), bombard your screen with advertisements (adware) or hide the installation of other dangerous programs onto your computer (rootkits). In order to remove malware on your Macintosh computer you'll need to purchase or download an anti-spyware program and complete a full system scan to detect and erase the malware. Two common anti-spyware programs are iAntivirus and ProtectMac AntiVirus.

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Remove Malware with iAntivirus

Step

Click the "iAntiVirus Free Edition" link, and click "Download Now" to download the application at CNET.com.

Step

Open your "Downloads" folder and double-click the "iantivirus.pkg" file to run the installation wizard. Click "Continue," "Agree" and "Install" to install the software.

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Open your "Applications" folder and double-click "iAntiVirus" folder and double-click "iAntiVirus" icon.

Step

Click the "Scan My Mac" button. Check the box next to "Normal Scan" and click "Start Scan." Once the scan is complete, check the boxes next to the found malware and click the "Remove Selected" button.

Remove Malware with ProtectMac AntiVirus

Step

Download "ProtectMac" from the Apple.com link in Resources.

Step

Double-click the downloaded file in your downloads folder and follow the onscreen instructions to install the software.

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Click "Finder," "Applications" and double-click the "ProtectMac Antivirus" folder and icon to run the application.

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Click the hard drive you wish to scan on the left side of the application window.

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Click the "Scan" button to begin. Once the download is complete, click on the malware found in the search results section to highlight it, and click "Delete File" to remove the malware.