Web Application Firewall

This transfer is blocked by a Web Application Firewall.

This transfer is blocked.
URL http://www.matriznet.dgpc.pt/MatrizNet/Entidades/~/CommonServices/FileDownloader.axd?fileId=447841&IdReg=40512&TipoReg=3&fileIsToDownload=true&fileName=ancora_iniciais.bmp&fileType=
Event ID 90300017
Event Type signature