My misunderstanding of the translation, my comment relates to the "Until today the scanner does not recognize this virus." In this context to me it means something different, today avast now detects this virus. With me not grasping what you meant, "avast! still doesn't detect this virus."
If you are not getting a virus warning that and you believe it is a new, undetected virus, then if you can zip and password protect ('virus', will do for password) the suspect file and send it to virus @ avast.com (no spaces).
Give a brief outline of the problem (possibly a link to this thread), the fact that you believe it to be a either a new, undetected virus or false positive and include the password in the body of the email. Some info on the avast version and VPS number (see about avast {right click avast icon}) will also help.
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