yes, they broke copywright law by copying part of an existing AV program. From the paragraph directly before the one you quoted: The way how my project worked

yes, they broke copywright law by copying part of an existing AV program. From the paragraph directly before the one you quoted: The way how my project worked is that it was using a thirdparty code from some already existing antivirus and forced that av to register the antivirus in WSC.