Quote Originally Posted by JollyJim
G

Check your images folder. I had a similar problem and found a PHP file had been uploaded into the images folder and this was being called by a virus which in turn propgated itself into other computers. I suspect the initial virus arrives by email and when you connect by FTP it uploads itself to the active directory on the server. From there it infects any computer which loads the site into a browser.

Have a look at the DO NOT IGNORE POST I made some weeks ago in the hacks forum warning people about this.

Hope this helps

JJ
Thanks Jim,
Just checked and there are no php files in the "images" folder on the server. I doubt if any e-mails would have slipped past my defences anyway. I've been doing a bit of research and the indicators are that there's a vulnerability on the server side. Probably a rogue script there that's inserting the wilful code into lines of coding in programmes located on the server. I only hope that it's only done it once in the one file otherwise I've got a mess on my hands. I'm waiting for the server staff to come back to me with some info.

I could really do without this

G