When downloading standalone "exclusive" trainers from older forums, always ensure you: Use tools like VirusTotal before execution.
Finding a specific version of a game trainer, like the Far Cry 3 Trainer 0101 Exclusive far cry 3 trainer 0101 exclusive
Most high-end trainers for Far Cry 3, including older "exclusive" builds, provide a similar suite of game-altering commands: including older "exclusive" builds