Well, i dont want to remember how many times I've cleaned my Dolphin manually from this iframes... Is like 6-7 times?! And i did'nt knew where this comes from, especially that i have like 3 websites on the same account. And all of them got infected.

And yes, i use SmartFTP to manage my websites and Dreamweaver CS4.

Solution 1: Search in ALL of your files starting with INDEX.HTML , INDEX.PHP , DEFAULT.PHP , HOME.PHP and MAIN.PHP . Even if your page is called index_something.php or default_something.php see more . After you cleaned your files of iframes, change your FTP passwords by using a text editor such as Notepad and Copy/Paste it, because keyloggers can't detect copy/paste.

Solution 2: Backup your data and install a fresh Dolphin if you did'nt made too many customizations to your Dolphin, and change your FTP passwords using the same copy/paste method.

Solution 3: Reinstall your windows :)

I had made some investigations about this iframe injection and it seems that there's no other way for getting rid of this annoying thing.

P.S. : For me the 1st option worked. Good luck to you too!