I got a virus when downloading VB???

[Hexify]

I just downloaded vb 2.3.11 and while extracting the file 'db_mysql.php' caused my virus scanner (avast) to pop up, said it was a worm? What's this all about? I logged into the members section, and downloaded it from there as well...

Also, is there any risk of hosting an old version like 2.x.x?

Edit: Issue resolved through support.