HowTo: Use grep Command In Linux / UNIX [ Examples ] http://www.cyberciti.biz/faq/howto-use-grep-command-in-linux-unix/
Site Compromised Warning on Search Results – Google Groups https://productforums.google.com/forum/#!topic/webmasters/hrCuxbF9vfM/discussion
Spam Hacks, The Pharmacy Hack, The Porn Hack, etc. http://blog.aw-snap.info/2011/02/pharmacy-hack.html
Cleaning your site – Webmaster Tools Help http://support.google.com/webmasters/bin/answer.py?hl=en&answer=163634
Still showing “This site may be compromised” message how to remove. – Google Groups http://productforums.google.com/forum/#!topic/websearch/2Tus4XyBRfQ