How to detect RARs/EXEs hidden in JPGs?
April 19, 2009 5:23 PM Subscribe
I recently noticed a few poor-quality image files with suspiciously large file sizes that were uploaded to my public FTP server quite some time ago. They ended up being readable as WinRAR archives and contained some highly illegal content as well as what I suspect are viruses. The instructions for how to hide archives within JPGs is pretty well documented but I would like to know if there is some utility I can run that would scan all the files on my server and detect if any of them are more than they appear to be. Linux or Windows utilities would both work. Thanks