Modern antivirus software universally flags these tools as malware (Trojan.FakeAV or Malware.Generic). Furthermore, even if you generate a number that lets you install the game, the online activation server will almost certainly reject it because EA’s database only recognizes pre-sold batches of keys.
While product activation and serial numbers helped to curb piracy, they also raised concerns among gamers. Some of the challenges associated with product activation include: Crysis 2 Product Activation Serial Number