Steganography Detection on the Internet Finding Images To exercise our steganalysis, we need images that might contain hidden messages. Analyze images from eBay auctions as indicated by news reports. Analyze images from the USENET archives of the Internet Archvie. To obtain images from eBay auctions, we developed a web crawler that saves JPEG images. No open-source, image capable web crawler available. Match images and web page URLs against regular expressions. Specify minimum and maximum image size. Restricted search to images between 20 KByte and 400 KByte. Downloaded more than two million images linked to eBay auctions. Output of crawler directly piped into Stegdetect for automation.