@INPROCEEDINGS{Santos11b, author = {Igor Santos and Borja Sanz and Carlos Laorden and Felix Brezo and Pablo G. Bringas}, title = {Opcode-sequence-based Semi-supervised Unknown Malware Detection.}, booktitle = {Computational Intelligence in Security for Information Systems}, series = {Lecture Notes in Computer Science} volume = {6694} pages = {50--57} isbn = {978-3-642-21322-9}, url = {}, year = {2011} }