Remove Heur.JS.Downloader effectively and permanently

I believe my desktop computer is infected and that it is now spreading to my other devices via my home network. Heur.JS.Downloader was found by Emisoft. Scans by both Avast Anti-virus and Malwarebytes showed nothing. MS Malicious Software Removal Tool showed 11 infected files while the scan was running, but when it ended it said no infections were found and no list of those 11 files were shown.

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Trojan Horse Exploit.swf_c.APS Removal Instruction - Get Rid of Trojan Horse Exploit.swf_c.APS Effectively

Trojan Horse Exploit.swf_c.APS Could be Really Troublesome

Trojan Horse Exploit.swf_c.APS is a malicious program allowing cyber hackers to access you computer system remotely. It will let those bad guys wreck havoc and mess up your PC via modifying files, stealing personal information and installing more unwanted software. This trojan horse can be sent to you by someone or carried by another program. Thanks to unwanted downloads on infected websites or installed with online games or other internet-driven applications, Trojan Horse Exploit.swf_c.APS may also arrive on your computer.