Threat Database Mac Malware Trojan.MacOS.Wildfire

Trojan.MacOS.Wildfire

Threat Scorecard

Threat Level: 90 % (High)
Infected Computers: 111
First Seen: January 4, 2021
Last Seen: September 19, 2023

Trojan.MacOS.Wildfire can be classified as a generic detection for a Potentially Unwanted Program (PUP) affecting macOS systems. PUPs often spread out disguised as legit programs that can perform various actions, like system optimization, detection of viruses or other issues, cleaning unnecessary old files, etc. Some PUPs also claim to be browser extensions that can improve user’s online searches, yet, in most cases, tools like Trojan.MacOS.Wildfire end up doing more harm than good to computers on which they have been installed. In the majority of cases, users install PUPs unwillingly through a method known as “bundling” - the undesired scripts are embedded as “optional offers” into the installers of free software.

As the most popular types of PUPs are adware and browser hijackers, Trojan.MacOS.Wildfire most likely aims to alter the browser’s settings, replacing the user’s homepage, new tab URL, and default search provider with a fake search engine’s address. That forces the user to visit the promoted website each time the browser is launched, which redirects traffic and generates advertising revenues for the PUP owner. Displaying countless third-party ads in the form of pop-up messages is the other most common feature of PUPs with adware functionalities.

What the user would not notice, though, is that Trojan.MacOS.Wildfire probably performs other, much more harmful activities in the background. These may include monitoring browsing history, collecting search terms, in extreme cases, even extracting personal details and login credentials stored in the infected browser. PUPs should be removed immediately since many can lead to severe privacy issues and financial losses for unsuspecting Mac users.

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