ExplorerIndex

Threat Scorecard

Threat Level: 20 % (Normal)
Infected Computers: 11
First Seen: September 23, 2021
Last Seen: March 26, 2022

ExplorerIndex targets Mac users with the goal of delivering unwanted and intrusive advertisements to them. Naturally, applications with this particular behavior are classified as adware. Users should be careful as adware, browser hijacker, and PUPs (Potentially Unwanted Programs) are almost never distributed via normal methods. Instead, these annoying applications are spread via questionable tactics. For example, ExplorerIndex was discovered to be pushed by untrustworthy websites claiming that the users' Adobe Flash Player is out of date and needs to be updated as soon as possible.

Once established on the Mac, ExplorerIndex will start running an advertising campaign that could severely impact the user experience. The advertisements may prove to be a constant distraction. More importantly, the advertisements delivered by such dubious sources are unlikely to be for legitimate products or services. On the contrary, users could be presented with advertisements for various online tactics, fake giveaways, suspicious adult pages, questionable online betting platforms, etc.

Another important fact that users should keep in mind is that most PUPs are equipped with additional functionalities as well. These applications may silently collect browser-related data and continuously transmit it to their operators. However, the exfiltrated information also could include device details or even sensitive information (account credentials, banking details, credit/debit card numbers, etc.) extracted from the browsers' autofill data.

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