Cannot locate malware

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At some point my browser started to randomly forward me to a wrong site when clicking link or open pop-up ads. I figured I've gotten adware from somewhere accidentally. First I checked there wasn't any unwanted extensions in browsers and removed if there was weird ones. I use mainly Chrome but the problem exists also when using Firefox.

Problem maintained. I installed BitDefender Virus Scanner and ClamXav and ran both of them with updated malware databases. They didn't find anything. Next I installed Private Eye application so that I could maybe get a hint of what's happening just when the malfunctional behaviorism occurred. I don't, everything seems normal to me.

Clearly there's something unwanted on my computer. What would you suggest I do next? I have a Macbook Pro Retina 13"/2.4 GHz/8 GB/250 GB running OS X 10.9.5.
 

Slydude

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Download AdwareMedic and give that a try. If it were me I'd probably delete BitDefender but others may disagree.
 
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Well I don't Sly. BitDefender is a resource hog and if you MUST run AV software coming from a Windows background, stick with ClamXAV.
 

chscag

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I agree with Harry. BitDefender works great in Windows but this ain't Windows! ;P
 
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Thank you. AdwareMedia found Spigot and I removed it (although I thought I had removed it already by removing Safari's extensions).

I also removed BitDefender and I guess I'm also removing ClamXav for now since I don't think there's need for an antivirus software in my use.
 
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I was impressed with adwareMedic. Found a number of malware. Got most when I downloaded the latest version of adobe. I always trusted adobe but now???
 
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At some point my browser started to randomly forward me to a wrong site when clicking link or open pop-up ads.

So quit clicking pop-up ads. Good way to get malware.
 
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Now it is clean Ralph download and run AdBlockPlus and Ghostery to control these monsters, and keep away from CNET and softonic downloads.
 

Slydude

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I was impressed with adwareMedic. Found a number of malware. Got most when I downloaded the latest version of adobe. I always trusted adobe but now???

Make sure that when you download updates you manually go to the Adobe site. Don't go there by following links from another site.
 
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Interestingly enough the problem recurred after awhile and now neither Adaware or ClamXav are able to find anything. Browser randomly sends me to a strange site or opens a pop-up in everyday use. And I might have been unclear before - my normal web use is very safe, no clicking pop-up ads or such. Any further ideas what I should do?

Also I'm wondering at what point I should start to worry from the data protection point. In addition that I'm using electronic bank services etc. with the computer, it also contains quite a lot of private work-related files (sound, text, spreadsheet). Am I already there?
 
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Check your browser extensions. Anything new there?
Check your hosts file in /etc/hosts. Shouldn't be much there.
Check your DNS settings, in System Prefences/Networking.
 
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In addition to what cradom suggests try clearing your browser data wouldn't hurt either.

In Chrome -> settings -> history -> clear browser data.

I don't use firefox so I can't suggest how to, but clear the browser history in it too.

Lisa
 
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Problem persists, hugely annoying.

I have removed and reinstalled all browsers except Safari which I have cleared from additional extensions. Nothing strange in hosts file or DNS settings.

_Any_ ideas?
 
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Copy and paste your hosts file here.
Anyone else have access to your computer?
 

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