If this is something that you want to implement on an ongoing basis, may I suggest you look into the Symantec Scan Engine? It may be the solution you are looking for.
As Pete said, CSP will protect you from Viruses and other threats, but there is no "Scanning" for nefarious things like with a AV product, so if the end result is using AIX as a file transfer service, then CSP will not really do much.
CSP locks down a machine so Malware cannot run (actually, it prevents the malware from being able to touch protected resources), but it will not prevent malware from being temporarily stored on an AIX machine, only to be later downloaded by a client machine from the AIX server. So if this is some sort of file transfer gateway, and you want to scan all the items as they arrive, you should look in to the in-line capability of the Scan Engine.