''We are aware of his comments and let me reiterate the ICC has a zero-tolerance approach to corruption in sports,'' an ICC spokesman told local media.
Yesterday, Shoaib disclosed on a Pakistan news channel that he was offered money to underperform and rejected many such offers made to him.
''It happened in Johannesburg and India but I never accepted them as I can't betray my country,'' Shoaib said in an interview to Geo TV.
''And what do I get in return - a five-year ban the example of which you don't get anywhere in the cricket world. Even players who were fined and found involved in match-fixing issues didn't get such bans,'' he added.
However, Pakistan team manager Talat Ali, denied Shoaib's claims and said, ''He didn't report anything to me. This is the first I have heard about it.''
The ICC Code of Conduct states that players are required to report any approach made to them by a bookmaker or any other corrupt approach to their captain, team manager, a senior board official or to the Anti-Corruption and Security Unit.