Although not as common a target as computers running Windows, Macs are not as secure as expected. An example of this is new OSX-specific malware. It has been spread through an image disguised as an advertisement on web pages.
When the image was loaded, the code of the so-called VeryMal was executed. A scan was then made on the computer for Apple fonts. It verifies that the machine was running OSX. If it was on a PC, the code would terminate its activity right there.
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Confirming the machine as a Mac, the code proceeded with its process. It redirected the user to update Adobe Flash. This is quite common on Windows computers. But because it’s not often seen on Apple computers, it has affected a lot of people. According to security firm Confiant, the financial impact of the attack was more than $ 1.2 million (approximately R $ 4.5 million).
This is because when you install the malicious package, the computer starts running a bot in the background. It clicks on ads without the user’s consent to generate income for its creators. A good way to avoid VeryMal, beyond common sense, is to use adblocker extensions in your browser.