A computer file may be scanned for suspicious words 18 occurring within suspicious contexts 20. Thus, messages embedded by malware authors within their malware may be detected. The detection of such embedded messages may be used to identify otherwise unknown items of malware or as a pre-filtering technique...http://www.google.co.uk/patents/US20030120947?utm_source=gb-gplus-sharePatent US20030120947 - Identifying malware containing computer files using embedded text
