InstallMac malware?

Hi all, I've had Macs for a while without ever experiencing issues with malware or adware or viruses. I've also been using the Chrome browser with default search engine set to Google for ages - again no problems.

A couple of days ago I clicked on a link from Facebook messenger that opened a map in Bing. Looked at the map, closed the tab, but then later when I opened a new tab, my default search engine was Bing. I had no idea how it happened, but I just reset it to Google.

Haven't had any further problems until today. New tabs still open with Google as search engine, but opening the browser fresh brings up a "search engine" called "InstallMac". There is a link below the search field to "Remove InstallMac". I have never downloaded this thing or indeed even visited the website, so I'm pretty sure that "removing" InstallMac will not work! (I am very careful whenever I download or install things to read the fine print and make sure I'm not installing "extras". I don't get tripped up on toolbars!)

I don't really know what's going on or what I should do about it. I find these things pretty scary and I'm worried all of my data is getting passed around right now, if my Chrome has been hacked enough to get strange new search engines appearing randomly.

Help, advice, please?

Thanks,
Julie

 

Thanks! AdwareMedic found about seven or eight things, all related to genieo. They are removed now.

I now realise how I got this, which was downloading a program from SoftTonic on Sunday to open .rar files. (I didn't realise before that SoftTonic was bad!!)

Is there something I need to do now with this application? Will having it as an app reinfect my computer? Should I simply not use it, in case removing it causes more problems than just leaving it there?

Julie

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Unfortunately, I am still getting the same problem. The Adware removal tool clearly found InstallMac related things and supposedly got rid of them, but opening the browser still brings up its "search engine". Running AdwareMedic again says "nothing found".

I guess there is something else I should do, clearing browser cache maybe? I know uninstalling isn't easy to do with Macs, not sure how I would go about rebooting Chrome, if that's what I need to do.

Julie

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Never mind, I have read the help documentation provided with AdwareMedic and it says it doesn't fix the home page reset and to do that manually.

D'oh! Always read the instructions!!

Julie

 

Thank you all!

Any suggestions on what I should do with the .dmg I downloaded and installed that apparently came with the adware? I can trash the download. Will it be enough to do the same with the app?