The “powered by WordPress” phrase along with keywords from the most commont types of hidden spam links,
can get you a long list of compromised WordPress blogs. Some of these blogs have been cleaned since the last
Google index updates, but most of them are still infected.
Copy and paste the search strings into the google search box or click the link
next to each query to search in a new window/tab.
Note: These searches can only reveal certain types of hidden spam links. Other types of hidden links cannot be revealed this way.
Google also can’t be used to find other types of potentially harmful content such as iframes, malicious scripts and redirects.