Hi,
This just popped up into my Wordfence alerts:
Critical Problems:
* File contains suspected malware URL: /home/theaizzi/public_html/production/wp-content/plugins/w3-total-cache/readme.txt
http://www.sitesketch101.com/best-wordpress-plugins
Looks like perhaps the URL has been compromised, and should be removed to prevent future false positive results?