OpenAntivirus Project provides several tools for virus scanning, and includes patches to squid and samba. Gentoo Linux users could could benefit from it. Please consider adding it to portage. Thank you.
No progress here for 1 year; closing WONTFIX. Feel free to reopen with an ebuild.
According to their current status page, they're still in pre-alpha state (just like year ago), so I'd rather not add this to portage just yet.