This indicates an attack attempt to exploit a Buffer Overflow vulnerability in IcoFX.
The vulnerability is due to an error when the vulnerable software handles a malformed ICO file. A remote attacker may be able to exploit this to execute arbitrary code within the context of the application, via a crafted ICO file.
IcoFX 18.104.22.168 and prior
System Compromise: Remote attackers can gain control of vulnerable systems.
Currently we are unaware of any vendor supplied patch for this threat.