From the doc: 'Overwritting Virus Construction Toolkit is a virus source generator program designed for makeing overwritting virii... Every guy who wants to become a virus writter MUST make at least one overwritting virus. This is the beginning for everyone. The code made by OVCT is 100percent working comented assembler code.'
Constructor.DOS.OVCT [Kaspersky]Daemon.332 [Panda]OVCT.kit [McAfee]virus construction tool [F-Prot]
constructor.dos.ovct.exe