To remove this, open System Preferences, then click the Profiles icon. It looks like you have an adware-related configuration profile installed, which is preventing you from changing your home page setting.
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Their customer service department was able to help out about how to fix the browser issue once the other files were quarantined. Malwarebytes was able to quarantine it but that didn't fix the browser issue.
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This is easy to miss, since the homepage entry can be left untouched, making it appear that something is still installed if you're not observing carefully.I was running Malwarebytes when my Mac got infected.
One is to add a bookmark and change Safari's settings to load "tabs for" that bookmark item at startup. You'll want to reset Chrome sync.įor Safari, there are a variety of techniques being used to change the settings. If you're using it, you could end up syncing malicious changes right back onto your device, or onto other devices. You also need to think about Chrome sync. If you have Chrome bookmarks you don't want to lose, export those first and import them after reinstalling. Then reinstall a fresh copy of Chrome, and set it up from scratch. Even if the changes made by the adware were trivial, poking at the contents of undocumented Chrome-related files could potentially cause Chrome-related data loss, so it's not the sort of thing currently done by Malwarebytes for Mac.Ĭurrently, my advice is to completely delete Chrome and all Chrome data files from the computer. The changes to the Chrome profile are non-trivial to reverse, and as a representative of Malwarebytes, I would not recommend relying on Malwarebytes to fix those settings. The adware behind this has gotten very sneaky about how these changes are made. I recommend following some of the other pieces of advice in this thread, ie definitely do a malware scan too. The changes will not take effect until you restart Chrome. If you're infected, it should be very obvious as the half-dozen or so policies changed by weknow will be displayed.Īll I had to do then was use the command line to delete / modify the affected policies:ĭefaults write HomepageIsNewTabPage -bool falseĭefaults write NewTabPageLocation -string " "ĭefaults write HomepageLocation -string " "ĭefaults delete DefaultSearchProviderSearchURLĭefaults delete DefaultSearchProviderNewTabURLĭefaults delete DefaultSearchProviderName You can see your current Chrome policies by typing chrome://policy/ into your URL bar. "weknow.ac" changes a group of Chrome policies so as to set a new default homepage, new tab behavior, etc. I was finally able to fix this for chrome after having no luck with anything posted here. Can anyone here recommend a more permanent solution to my problem? Is there a third-party malware removal product that's both effective and trustworthy? Thanks in advance for any help. However, I don't want my (still relatively new) iMac to go through the rest of its life with this alien entity ticking away in its innards. The "good" news is that Safari (so far) shows no sign of the infestation - so I'm using that as my only browser. However, the bug still keeps coming back. (Although there are only a few that deal specifically with Chrome on Mac.) Uninstalled Chrome application, including trashing all its support folders from Library. I've tried three long phone troubleshooting sessions with Apple Help, including downloading and scanning with Malwarebytes, which read my computer as "clean." Also pursued other remedial steps I've seen suggested in other websites. The main only noticeable effect is that my homepage, tab option, and search engine in the Chrome browser now default to this alien "weknow.ac" search engine, which produces results very different from Google's.
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While browsing with Chrome two days ago, I made the idiotic mistake of clicking on a Flash download popup and immediately noticed signs of infection by this malware. For a variety of reasons, Chrome is my default browser, and Google is my default search engine and homepage.
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