Puzzling redirect popup

Hey guys,

Finally decided to join because this issue has me stumped. The main question is whether or not the problem is malvertising or an actual virus, and I have explained the situation below:

So in the past week I have started getting the "Firefox-patch.js" popup whilst browsing the interweb using Firefox. I am a very careful browser, with no add-ons at all, and I only go to reputable sites. Sometimes even the most careful user can get a virus, so whenever I have a hint that my machine might have an infection of some sort, I simply reinstall from a system image that I keep on a separate drive. (I create the system image from scratch; I install Windows 7 Pro, completely install all updates, install all my applications, setup/tweak the system how I like it, and then pull the system image down to my external drive). This practice has fixed my problem every time I have ever used it, but this time it didn't.

I reinstalled from the system image, but several hours later the popup happened again. I am now wondering if my system image is itself infected, or if this is just some type of ad-malware. If it is adware, that would explain why it still happens after the re-install, but I am not sure. MSE scanning didn't find anything, nor did Malwarebytes.

Others have suggested using an adblocker and seeing if that helps, and I might give that a try, but I can't help but worry that this might simply mask the problem (if it's a virus), not eliminate it.

So what do you guys think? Is my system image still a safe restore point? I tried to explain the situation as best I could, but ask questions if I need to clarify anything

Adware Cleaner Scan.

Please download AdwCleaner by Xplode onto your desktop.

• Close all open programs and internet browsers.
• Double click on adwcleaner.exe to run the tool.
• Click on Scan button.
• When the scan has finished click on Clean button.
• Your computer will be rebooted automatically. A text file will open after the restart.
• Please post the contents of that logfile with your next reply.
• You can find the logfile at C:\AdwCleaner[S1].txt as well.

JRT Scan.

Please download Junkware Removal Tool and save it on your desktop.

• Shut down your anti-virus, anti-spyware, and firewall software now to avoid potential conflicts.
• Run the tool by double-clicking it. If you are using Windows Vista or Windows 7, right-click it and select Run as administrator.
• The tool will open and start scanning your system.
• Please be patient as this can take a while to complete depending on your system's specifications.
• On completion, a log is saved to your desktop and will automatically open.
• Please post the JRT log.
•  

Adware Removal Tool Scan.

Download Adware removal tool to your desktop, right click the icon and select Run as Administrator.

Hit Ok.

Hit next make sure to leave all items checked, for removal.

The Program will close all open programs to complete the removal, so save any work and hit OK. Then hit OK after the removal process is complete, thenOK again to finish up. Post log generated by tool.

ZHP Scan.

Please download Zhp Cleaner  to your desktop.  Right Click the icon and select run as administrator.

http://ccm.net/download/download-24750-zhpcleaner

2. Once you have started the program, you will need to click the scanner button.

3. Once the scan is completed, the you will want to click the Repair button.

At the end of the process you may be asked to reboot your machine. After you reboot a report will open on your desktop.

Copy and paste the report here in your next reply.

 Zemana Scan

Run a full scan with Zemana AntiMalware!

Install and select deep scan.

Remove any infections found.

Then click on the icon in the pic below.

Double click on the scan log, copy and paste here in your reply