There is no stealthing or hidden access to be safe on PSN anymore. If anyone tells you diffrent there lying to just get you on the ban list.
This is what there scanning for:
Currently there is no workaround for this yet. Even MM stealth dont work as its on the list of things there program checks for in order to hand out a ban.
If MM says there is no update even though you know there is one, you can always double check here:
Just put in the game ID you wanna check for updates and away you go ^_^
"Snake. We're not tools of the government, or anyone else. Fighting was the only thing... the only thing I was good at. But... at least I always fought for what I believed in." - Gray Fox