remove virus and mailware from the site

hi all any expert is here i needed to remove mailware and virus and other effected code from my site i had tried many thing but is not removing earlier it was effected with the virus and i had clean up and its was working fine... but now again its effected my site... so needed one expert who can fix this permanently without any more issues it would be half an hour for the expert its hourly rate project so i will pay after the work is done and will check for two or three days the site than pay you happy bidding