Hello and welcome.
The problem is actually based in your router and that in turn is infecting all the other computers on your network.
Here is the entire fix(from the beginning) that you will need to run on each PC.
Please download Malwarebytes' Anti-Malware from Here
Next disconnect your system from the internet, and your router, then…
Double Click mbam-setup.exe to install the application.
- Launch Malwarebytes' Anti-Malware, then click Finish.
- Once the program has loaded, select "Perform Quick Scan", then click Scan.
- The scan may take some time to finish,so please be patient.
- When the scan is complete, click OK, then Show Results to view the results.
- Make sure that everything is checked, and click Remove Selected.
- When disinfection is completed, a log will open in Notepad and you may be prompted to Restart.(See Extra Note)
- The log is automatically saved by MBAM and can be viewed by clicking the Logs tab in MBAM.
- Copy&Paste the entire report in your next reply.
Extra Note:If MBAM encounters a file that is difficult to remove,you will be presented with 1 of 2 prompts,click OK to either and let MBAM proceed with the disinfection process,if asked to restart the computer,please do so immediatly.
Next you must reset the router to its default configuration. This can be done by inserting something tiny like a paper clip end or pencil tip into a small hole labeled "reset" located on the back of the router. Press and hold down the small button inside until the lights on the front of the router blink off and then on again (usually about 10 seconds). If you don’t know the router's default password, you can look it up HERE
However, if there are other Zlob-infected machines using the same router, they will need to be cleared with the above steps before resetting the router. Otherwise, the malware will simply go back and change the router's DNS settings. You also need to reconfigure any security settings you had in place prior to the reset. Check out this site here
for video tutorials on how to properly configure your router's encryption and security settings. You may also need to consult with your Internet service provider to find out which DNS servers your network should be using.
Once you have ran Malwarebytes' Anti-Malware on the infected system, and reset the router to its default configuration you can reconnect to the internet, and router. Then return to this site to post your logs.