recsell on "Someone inject script, they create file gz causes web error"

Hi,

Please help me, all my web under my vps going down, someone has been inject malware script, this script infected and make some files gz under wp-admin and wp-includes, they create wp-setting.gz and wp-login.gz, automatically my web can't running normally. I has been reinstall WP, but still infected. Anyone can help me...thanks