Seems that the site detection status is somewhere “in limbo” as no detection was being found during the last seven days, there is still the potential warning: http://www.avgthreatlabs.com/sitereports/domain/aegoes.com.br → http://siteinspector.comodo.com/public/reports/14359060
Url:Mal warnings could be shield blocks for a general block of the IP the domain is on, so if there is other bad webhosting on that IP avast! analysts may have set a general block for that particular IP, and that is what I think it is. As you have send the FP report did you include a link to the support forum link, because that can be important to avast! team members to reconsider the blcking.
This malware has been taken down in the meantime (malware from another domain on that IP) → Down: NA LACNIC BR regcom at locaweb.com dot br 187.45.195.29 to 187.45.195.29 difusaocientifica.com dot br htxp://www.difusaocientifica.com.br/
This might have been the detection the domain block rested on: http://minotauranalysis.com/search.aspx?q=68347dc86cc8abe654e1e0f1bdfd566f
and you see avast still gives the detection: https://www.virustotal.com/nl/file/19cbc88b78d7d8e36bb35082b817981048ee9a98d716453a480614c310cab120/analysis/
polonus