The folk from ModMyiPhone are alerting iPhone users about a malicious install that might mess up your units.
Apparently if you have jmwiki.com in your list of sources in Installer, an app called “113 prep” that purports to be an update of Erica Sadun’s utilities and implies that it prepares your unit for the 1.1.3 firmware is actually malware. When installed, the app will just say “shoes”, and when you uninstall it it takes with it important files from the /bin directory, and breaks other working apps like utilities from Ms. Sadun, and apps like sendfile.
Please do not install 113 prep and remove the JMCO source jmwiki.com from Installer.
(Via MMi)
