Hello, i make programm who use jquery javascripts libraries, and one library have file name jquery.log.js. You antivirus have message (Heur.Dual.Extensions).
Now i have claims from clean-mx.de and from virustotal.com. But i cant rename or delete this file. if i rename this file, antivirus stop block file, but my programm stop working. Please help me. it is not a virus… 
Please, you can check
lib.rar — Yandex.Disk - rar arhiv with jquery
VirusTotal - scan from virustotal.com
Hi cmuphyxa,
Thank you for reporting this.
We’ll check it and get back to you soon.
Regards,
gnaneswaran
Hello, gnaneswaran.
How are we doing?
Hello cmuphyxa,
This False Positive has been fixed. Please check with DB v18229 and confirm.
Best regards,
FlorinG