t is not present in XMB (not present in /dev_hdd0/game/*)
Each time the /app_home (* Install Package Files) gets different TITLE ID and TITLE NAME
Every time you load a game it will change the TITLE of /app_home thus not looking suspicious
You can use mM while your XMB looks totally OFW (with no homebrew installed which may be detected)
Once you booted stealth mM at least once you can safely delete the 'regular' mM from XMB if you wish.
You can delete the standalone [* Install Package Files] application from XMB if you wish.
Installing multiMAN Stealth:
After the download has completed, rename report_data.txt to anyFileName.self and Copy to a USB Storage Device or PS3 HDD