Chrome Messages and "Dings" virus?

So i've been getting these popping up in chrome at random times:

And i've also been hearing a "ding" noise that sounds sort of like the mario coin sound, but not exactly. It also seems to happen randomly. It happens sometimes with the message, and sometimes without.
I've run MBAM, Defender, ADWCleaner, JRT, and SuperAntiSpyware.

MBAM found nothing.

Defender found nothing.

ADW found: AppData\Local\Google\Chrome\User Data\Default\Local Storage\hxxp_st.chatango.com_0.localstorage
and hxxp_st.chatango.com_0.localstorage-journal

JRT found: Appdata\Local\google\chrome\user data\default\local storage\hxxp_www.azlyrics.com_0.localstorage

Superantispyware found: C:\PROGRAMDATA\INSTALLMATE\{B24BDC69-3C80-4CEC-AE07-74A269A8FE9F}\CUSTOM.DLL
and also a bunch of cookies that are potentially tracking. Suspicious ones include: popads.net, scorecardresearch.com, onclickads.net, sales.liveperson.net, serve.popads.net, Adcash.com
All of which have been deleted.

I don't see any odd extensions in chrome. Only the ones that I use and trust. Same for chrome plugins.
I have tried clearing the chrome cache, cookies, etc.
I have no bad programs installed that I can see.

This all was done yesterday. Today I haven't experienced a popup yet, but I have heard the ding. I'm running procmon hoping to catch it in the act.
Any advice?

Cliff S said:

You could run Ccleaner and Totally nuke everything in Chrome or use Chromes History tool. Make sure you just don't delete you saved passwords. Then download and install MBAE(Malearebytes Anti Exploit) to protect against Zero-Day Exploits. You can turn off the constant toast pop-up in settings app

Thanks for the quick reply :)

I used ccleaner and gave chrome the nuke.
I installed MBAE too. Does it just run in background?

Cliff S said:

Yup with absolutely no negative effects(minimal asset usage)

Alright, so I was on for a few hours today, and nothing!
It must have been one of the many things I tried.
Thanks for your help :)

Cliff S said:

You're welcome.:)

it's back

yesterday a "ding"
and today a popup like the earlier ones in chrome. Popup Blocker Pro caught it and prevented it from being loaded.
Superantispyware finds a ton of "adware tracking cookies". What can I do with these?
After cleaning them, i can do the same scan a little while later and find more. Listen to these:
scorecardresearch.com
sellpoints.com
skimresources.com

these are all cookies being created, when i've never been to these sites...

TairikuOkami said:

Going to 1lrl[dot]com and clicking on 360secure reproduces the popup as well as the sound.
It seems like something is opening popups, check installed software, might be bundled within.

Around the time of the first popups (the screenshotted ones) I installed: Phoenix RC Simulator (i trust it), Auslogics Disk Defrag. I'm skeptical about the second one... Any idea about it?

Update: clearing cookies, checking cookies, seeing that ad cookies are being created fast for sites i've not been to...