Remove ManagementMark
ManagementMark is an annoying application, which might show up on your Mac out of nowhere. It is designed to work in the background and manipulate the configuration of your Web browser. The changes it introduces are not dangerous, but they may ruin your Web browsing experience. Typically, users who encounter ManagementMark report that their browser takes them to random pages unexpectedly.
It seems that ManagementMark is a Potentially Unwanted Program (PUP) that also possesses browser hijacking capabilities. It can replace the default system browser's new tab page and search engine. While there is nothing malicious about this, it is certainly not something that you will enjoy. Furthermore, legit tools and programs will never mess with your system and browser configuration without your approval.
Trying to undo the changes that ManagementMark introduces will not work. This PUP will continuously check your browser configuration, and modify it according to its own preferences. This is why the best way to resolve this issue permanently is to remove ManagementMark entirely. Although you might be tempted to do this manually, we advise you to use the services of an up-to-date Mac security tool. This will ensure that there will be no leftover files to deal with.
Avoid future encounters with apps like ManagementMark by using trustworthy Mac security software. Also, try to be more careful with the websites you visit and files you download. PUPs like ManagementMark often pose as fake updaters and installers, hosted on low-quality sites.