Trojans are really Malware and so not always in the remit of antivirus software.
Download
MalwareBytes' AntiMalware using the BLUE button for the FREE version.
* Double-click
mbam-setup.exe and follow the prompts to install the program.
* At the end, be sure a checkmark is placed next to the following:
o Update Malwarebytes' Anti-Malware
o Launch Malwarebytes' Anti-Malware
* Then click
Finish
If an update is found, it will download and install the latest version.
* Once the program has loaded, select > Perform Quick Scan, then click > Scan.
* When the scan is complete, click > OK, then > Show Results to view the results.
* Be sure that everything is checked, and click > Remove Selected.
* When completed, a log will open in Notepad. Save this log to My Documents in case it is needed for reference.
Reboot as required.
Run a scan with the program that found the virus/trojan and report back.