>-----Original Message----- >From: Geoff Manning [mailto:[EMAIL PROTECTED] >Sent: Thursday, June 09, 2005 11:45 AM >To: users@spamassassin.apache.org >Subject: RE: Gif-Only spams > > >> Check out the interesting idea at www.rulesemporium.com/forums/ >> >> entitled: Image attachment MD5 footprint RBL > > >My only comment on a system like this is that it could be >easily subverted. >A spammer could use automated image editting tools to randomly >change some >aspect of the file that would give it a totally different MD5 sum. Like >changing the lower right pixel to a different color would >throw the md5 sum >way off.
I completely agree. But I'd like to see it tried. Then maybe combine it with distancing techniques to see how distant one MD5 is to another. Baby steps ;) --Chris
