Once the game has fully loaded, start the ped-dropper executable. For Steam you may need to run it "As Administrator", depending on how Steam was started.
Find a good spot to stand still for a while without any roof over your head. The pier, close to the "do not cross" wooden fence has proven to be an excellent spot, since most of the day a lot of human NPCs are spawned by the game.
To start the hack, press Numpad+. This will start/increase the max rate of peds dropped per second. Numpad- will decrease the maximum rate. There are currently 13 steps, ranging from limiting up to 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 10, 20, 40, 80, 320 peds/second max.
Just stand still at the same spot and receive all the money falling from the sky. Most money pickups will add 2500 to your bank account. Since the mod is external, not all peds may teleport correctly and some will die elsewhere and some will not spawn any money pickup. (Alternatively you could start walking around and grab the money pickups after they have fallen on the floor behind you.)
Press Numpad- key a couple of times to stop money from dropping.
The executable will close itself once GTA5 is no longer running.
Changelog: v1.0.6 - Use Shop Cash hash for money pickups, so the 60k limit is no longer an issue anymore (until R* updates that!). - Increase default money value to 2500. - By default, disable kick-prevention (for being kicked after too many failing transactions) - Remove money limitations, the game itself will enforce these limitation when online, otherwise you can drop 2B in single player if you want to.