Xbox 360 softmod?

I've been hearing about an Xbox 360 softmod that runs off a flash drive. I have an Xbox 360, and I have an iPhone, and an Android phone, and I have Macs, so it should be enough to put the softmod on a flash drive and stick it in the 360, right? Well, the instructions I'm finding (on various YouTube videos about it) all say I have to run a .EXE file (in Windows). The only access I have to Windows is at work, and we can't bring flash drives in, or run executable files there (that aren't approved). All this sounds real sketchy anyway. So, is there any truth to this softmod or are various YouTubers (none of them well known, trustworthy sources) just trying to get people to install ransomware on Windows machines?

Is there an actual package that can simply be extracted to the flash drive?

Just wondering if anyone here knows anything about it.

Edit: For what it's worth, my interest isn't even piracy, per se. The disc drive on the 360 took a shit on me, so I figure I can load the games we have on the flash drive. We're actually only concerned about one, Rockband 3, because we have a shit ton of custom songs for it. We could play via the disc if the disc drive worked. So I'm thinking we find the disc image online, if the one already on the flash drive isn't good enough (it was "ripped" or whatever using the Xbox itself, you know where it lets you copy a disc to the internal drive or a flash drive, and play it off that, but it checks the disc first. Furthermore, there's a mod for Rockband 3 called Rockband Deluxe that adds some nice QoL features. So basically we're thinking of making it a dedicated Rockband player.

Any other Xbox games I'd just play on my fully working Series X. Rockband 3, however, is not backwards compatible, and Rockband 4, which was released for the XB1, doesn't support custom songs. So the hundreds we've bought are in there and playable on the XSX. We really just want the 360 for customs. Though, I suppose it would be cool to find a download with all the DLC ever released, and just sort out the stuff we don't want.