I would like to help you get to the bottom of this. I would guess that this is due to malware interference that is causing JavaScript errors. The best way for me to help you with this is for you to email me your WP Admin login.
Thanks for sending me all the login info for your server. I discovered two new threats that had infected all your themes, these were causing the 500 errors on your site. I was able to add these new threats to my definition update and my plugin has now removed them from 36 files on your site that were found to be infected.
Your site loads fine now and is no longer flagged as infected by sucuri. Please let me know if there is anything else you need.
Aloha, Eli
I put that warning in my plugin because a lot of malicious code I find adds malicious content to the infected site by hijacking the output buffer. There are legitimate uses for adding a callback function to the output handler, but ZM5j2q0shf_callback sounds malicious to me.
If my plugin is not finding the malicious code I can look for it for you. This may be a new threat that is not yet in my definitions.
It was in post 2336. I could see the malicious javascript redirect in plain text entered into the post content area.
Because this is the second time you have gotten infected with the same code, and you have already changed your password, I would suspect that this hacker has got another means of infecting your site. Is this a shared hosting account? Do you have any other sites on this server? It is possible that this hacker is using a vulnerability on another site to infect your DB directly.
It looks as though koumbit.net has disabled you site for now. I suspect they are aware of your infection and have probably contacted you about clearing it up. If you can get them to re-enable the site I can help you clean it up again and see if I can figure out how this hack is getting in.
Thanks for the login. I Checkout your site and it all looks fine. None of those Potential Threat are malicious and I don’t see those ads on your website. It may be your PC that is infected and causing your browser to display ads on websites where there really are none.
Can you send me a screenshot of the ads you are seeing?
Also, try viewing your site from another computer to see if the ads show up there.
Did you download the latest definition updates?
Potential Threats are usually not malicious, especially .js files. The Automatic Fix button is for Known Threats (in red).
If my plugin does not find and fix the threat that is causing these ads to show up on your site then I can look for the malicious code myself. Just email me a WP Admin login for your site and I’ll take a look.
Well I found it right away because it was not hidden in the code at all, it was actually inserted into a post in plain text. I removed it manually. I didn’t see any other issues on your site.
Let me know if you need more help.
You can email me directly: eli AT gotmls DOT net
This looks like a type of infection that is not in my definitions yet. I can see it on your home page but cannot tell where it is coming from.
If you send me your WP Admin login I’d love to track this down for you and add it to my definition update so that it can be automatically removed.
Ryan,
If you quarantined the threat in the header than you probably got the bad guy already. Your site looks clean to me.
If you have any reason to believe your site is still infected then send me your login info and I’ll take a look.
Aloha, Eli
Thanks for the heads-up!
Wordfence is a great plugin but we all have trouble determining nature of suspicious code from time to time 
Anyway, I have fixed this in my newest release so that file should not be flagged any more if you have upgraded it.
Thanks again for pointing this out and please let me know if there’s anything else.
Aloha, Eli
Hey Chris,
Thanks for sending me you login info. I just ran a Quick Scan on your themes and it found the malicious ‘b_goes’ function used to handle output buffers. This code was added to the functions.php file in all 7 of your themes. I applied the Automatic Fix which successfully removed the malicious code from all 7 infected files and now this site is clean.
This type of infection usually gets in from a vulnerability on another site on the same shared hosting server. Most shared hosting plans have no cross contamination security at all such that a single site’s weakness can be exploited by hackers to infect other sites on your account and sometimes even other accounts on the same server.
I am running a Complete Scan now on all the sites in the html directory. There are a lot of sites in this account so it looks like it will take about an hour to Scan them all but it has already found and fixed infected files on another site. I will follow-up with you directly via email when the scan is complete.
The sucuri.net scan results are cached, so it will not automatically update to reflect the changes you have made to your site. The “Force a Re-scan” link is at the bottom of the scan results, just above the heading “Scan Another Site”.
The backdoor was probably used to infect all your themes, but I can’t be sure how that plugin file got a back door in it.
You should remove all those threats and the click the small link on securi to “Force Re-scan” just to make sure we got them all.
Let me know if you find more problems that you need help with.
Aloha, Eli
This looks like an old threat. I’m surprised my plugin did not find it. Have you downloaded the latest Definition Updates?
If you want me to take a look at this for you I’ll need you to send me your WP Admin login. You email me directly: eli AT gotmls DOT net
Aloha, Eli
