IDP.Generic in setup-x86_64.exe

[Fausto Arinos de A. Barbuto]

Hi,
Attempts to update my Cygwin installation with the new setup-x86_64.exeended up in failure. Avast Free Antivirus says the file has a IDP.Genericmalware and moved it promptly to the virus vault, where setup-x86_64.exeis kept "prisoner". I might ask Avast to release it and let it run, butI'm afraid of inflicting damages to my computer. A previous version ofsetup-x86_64.exe had the same fate, this time because of IDP.ALEXA.52.
In the meantime, I cannot update.
What should I do?
Fausto