Warning: New Undetectable DNS Hijacking Malware Targeting Apple macOS Users

in #technology7 years ago

"OSX/MaMi isn't particularly advanced - but does alter infected systems in rather nasty and persistent ways," Patrick said.

"By installing a new root certificate and hijacking the DNS servers, the attackers can perform a variety of nefarious actions such as man-in-the-middle'ing traffic (perhaps to steal credentials, or inject ads)" or to insert cryptocurrency mining scripts into web pages.

Besides this, the OSX/MaMi macOS malware, which appears to be in its initial stage, also includes below-mentioned abilities, most of which are not currently activated in its version 1.1.0:

Take screenshots

Generate simulated mouse events

Perhaps persist as a launch item

Download and upload files

Execute commands

The motive, author(s) behind the malware, and how it is spreading are currently unknown.

However, Patrick believes that the attackers could be using lame methods like malicious emails, web-based fake security alerts/popups, or social-engineering type attacks to target Mac users.

To check if your Mac computer is infected with MaMi malware, go to the terminal via the System Preferences app and check for your DNS settings—particularly look for 82.163.143.135 and 82.163.142.137.


According to VirusTotal, a multi-engine antivirus scanner, none of 59 popular antivirus software is detecting this malware at this moment, so you are advised to use a 3rd-party tool such as a firewall that can detect and block outgoing traffic.

You can also install a free open-source firewall for macOS named 'LuLu,' created by Patrick and available at GitHub, which blocks suspicious traffic and prevents OSX/MaMi's from stealing your data.

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