This source (jmwiki.com) adds an app in installer that pretends to be an update of erica's utilities. The app appears in installer as 113 prep.

Once installed all this app does is it says "shoes." When uninstalled this app removes a lot of files from the /bin directory on the iphone, breaking valid apps like sendfile and other erica utilities.

Do not try installing the 1.1.3 iPhone Prep, it will do nothing on install, and on uninstall it will remove 20+ binaries (mostly those of Erica Sadun's utilities) from your iPhone's /bin/ dir.

Thanks!

Edit:
Credit to-
http://www.modmyifone.com/forums/showthread.php?t=24323

You can follow the main thread here

http://hackint0sh.org/forum/showthread.php?t=21925