WIN32:malware-gen

hello, my AVAST antivirus highlights an infection from WIN32:malware-gen (see screenshot attached)

what do you know about ?

i tried to remove it by installing malwarebytes, but it doesn’t find any threats

can you help ?
![](https://d2r1vs3d9006ap.cloudfront.net/s3_images/1501002/RackMultipart20161024-73387-14qadaf-Screenshot 3 inline.png?1477308283)an