Win32:Evo-gen [b][Susp], [/b] and don't lets me to ignore this false positive alert.
i would not Call it False Positive as it is detected as Suspicious ;)

You can upload and report FP to avast here: http://www.avast.com/contact-form.php

you can also use mail

send to virus@avast.com in a password protected zip file
mail subject: False Positive
zip password: infected

or you can send files from avast chest
how to use the chest. http://www.avast.com/faq.php?article=AVKB21