Http Logs For Directory "iqici" Anyone Else?

I have had this before and at the time it seems my site may have actually been infected with something, this time my site is secure and my custom error handling is taking care of the problems.My access logs have a lot of requests for PHP scripts in the directory "mysite.com/iqici/sbtih" originating from different IPs on different subnets, suggesting they could be from a botnet perhaps or some other geographically dispersed network.Is this a well known thing?Like I said, my site is not at risk but it does show a number of clients requesting the same or similar files, so either they are command files for a botnet or they are part of a well known root kit or other exploit that clients are blindly trying to find by hitting every domain out there for those specific files.Any insight?Also had a hit for a wordpress upload URL so there must be an exploit out there for that too considering I dont use WP