Sounds like you're still infected, and that it got into your System Restore points. Confirm if this is the case by installing Malwarebytes in Safe Mode with Networking to update and run a full scan. If this fails download
Windows Defender Offline, writing to flash stick or burning to CD, booting to update and run a full scan.
If infection is found confirming your Restore points are infected, turn off System Protection and run another full scan with Malwarebytes, then Avast full scan or Boot Scan if available.
System Protection - Change Disk Space Usage
Google the actual virus to see if it requires special tools for removal. Our Security forum experts can consult.
Once it's confirmed removed, run
SFC -SCANNOW Command to check System file integrity.
Serious infections can sometimes require a
Clean Reinstall - Factory OEM Windows 7 following or adapting these steps to get it perfect.