* cough * cough * You can embed a port scanner in JavaScript inside a PDF document via /JavaScript tags. And many high-end IDS/IPS/NDS/XNS firewalls look into

* cough * cough * You can embed a port scanner in JavaScript inside a PDF document via /JavaScript tags. And many high-end IDS/IPS/NDS/XNS firewalls look into PDF documents for such things like that. https://opensource.adobe.com/dc-acrobat-sdk-docs/library/samples/Samples_JavaScript.html https://opensource.adobe.com/dc-acrobat-sdk-docs/library/sam...