一句话查找PHP木马

# find ./ -name "*.php" |xargs egrep "phpspy|c99sh|milw0rm|eval(gunerpress|eval(base64_decoolcode|spider_bc"> /tmp/php.txt
 
# grep -r --include=*.php  '[^a-z]eval($_POST' . > /tmp/eval.txt
 
# grep -r --include=*.php  'file_put_contents(.*$_POST[.*]);' . > /tmp/file_put_contents.txt
 
# find ./ -name "*.php" -type f -print0 | xargs -0 egrep "(phpspy|c99sh|milw0rm|eval(gzuncompress(base64_decoolcode|eval(base64_decoolcode|spider_bc|gzinflate)" | awk -F: '{print $1}' | sort | uniq

查找最近一天被修改的PHP文件

#   find -mtime -1 -type f -name *.php

修改网站的权限

# find -type f -name *.php -exec chmod 444 {} ;
 
# find ./ -type d -exec chmod 555{} ;

转自：http://www.xtgly.com/2011/11/21/linux-shell%E5%BF%AB%E9%80%9F%E6%9F%A5%E6%89%BEphp%E6%9C%A8%E9%A9%AC.htm