This indicates an attack attempt against a buffer-overflow vulnerability in Acoustica Beatcraft.
The vulnerability is caused by an error when the vulnerable software handles an overly long string in .BCPROJ files. It allows a remote attacker to execute arbitrary code.
Acoustica Beatcraft 1.02 Build 19.
System Compromise: Remote attackers can gain control of vulnerable systems.
Do not open untrusted Beatcraft Project files.