553277 Remove malware from my blogs

I need someone who knows what they are doing when it comes to removing malware from my server. I have several sites infected and have manually removed the malware but they have managed to have the same files pop back up and change my htaccess file to redirect traffic. Please PM me if you have malware removal experience and know exactly how to find and remove malware from the server. Please PM 1st before bidding, so I can show you problem and please do not bid some outrageous amount as I will just delete your bid. Thanks