If this phenomenon were to spread like the plague, you can bet your ass that no-one would want a cure. Random players in GTA Online are reporting a surprise deposit of GTA$ 250,000 in their in-game accounts with no indication as to why, and some are even getting the bonus multiple times.

Rockstar has held special events and promotions which rewarded players with the same amount for logging into GTA Online at a certain time, most recently during the game's third anniversary. When initial reports of the "random 250k" began popping up, most people assumed it was that amount arriving late.
However as this became more and more frequent, players who already got their anniversary cash started receiving this bonus as well. It was seemingly random, with players who partook in such promotions before getting cash sometimes, sometimes not, and entirely new players also occasionally getting the bonus while others remained broke.