Avast accusing viruses on JPG image sites generated by Adobe Photoshop and Fireworks

I am having a serious problem, AVAST started to accuse viruses on my site related to "VBS malware-gen" this is a false positive because it occurs because the fireworks image editing program is including a malformed code before xmpmeta / exif so I would like to know how to remove this from the images and disable so that Adobe programs do not add this to the code:

NOTE: The same does not occur in PNG images only JPG

An example follows:

ŸØÿà? JFIF ??? H H ÿá2 "http://ns.adobe.com/xap/1.0/ <? Xpacket begin =" ï "id =" W5M0MpCehiHzreSzNTczkc9d "?>

<X: xmpps xmlns: x = "adobe: ns: meta /" x: xmptk = "Adobe XMP Core 5.3-c011 66.145661, 2012/02 / 06-14: 56: 27"

   <Rdf: RDF xmlns: rdf = "http://www.w3.org/1999/02/22-rdf-syntax-ns#">

      <Rdf: Description rdf: about = ""

            Xmlns: xmp = "http://ns.adobe.com/xap/1.0/">

         <Xmp: CreatorTool> Adobe Fireworks CS6 (Windows) </ xmp: CreatorTool>

         <Xmp: CreateDate> 2017-02-22T15: 09: 36Z </ xmp: CreateDate>

         <Xmp: ModifyDate> 2017-02-22T15: 09: 57Z </ xmp: ModifyDate>

      </ Rdf: Description>

      <Rdf: Description rdf: about = ""

            Xmlns: dc = "http://purl.org/dc/elements/1.1/">

         <Dc: format> image / jpeg </ dc: format>

      </ Rdf: Description>

   </ Rdf: RDF>

</ X: xmpmeta>