Re: Image spam and failing rule

2009-05-02 Thread James Wilkinson
Theo Van Dinter wrote: > It's already been mentioned, but mimeheader is the right way to look > at the headers of MIME parts. Charles Gregory wrote: > Look more closely at my rule. It is checking for TWO headers, > one after the other (separated by \n), identifying a gif with no name. > >>> full /

Re: Image spam and failing rule

2009-05-02 Thread Charles Gregory
On Sun, 26 Apr 2009, Theo Van Dinter wrote: It's already been mentioned, but mimeheader is the right way to look at the headers of MIME parts. Look more closely at my rule. It is checking for TWO headers, one after the other (separated by \n), identifying a gif with no name. full /Content-Typ

Re: Image spam and failing rule

2009-04-27 Thread Karsten Bräckelmann
On Mon, 2009-04-27 at 12:16 +0200, Andy Spiegl wrote: > > It's already been mentioned, but mimeheader is the right way to look > > at the headers of MIME parts. > > How about multiline Content-Types? They appear to be wrapped. $ grep -A 1 image/ dsl.png.msg Content-Type: image/png; n

Re: Image spam and failing rule

2009-04-27 Thread Andy Spiegl
> > While you are at it, you can also scan for > >   full /Content-Type: image\/gif;\n[^a-z]+name=""/ > It's already been mentioned, but mimeheader is the right way to look > at the headers of MIME parts. How about multiline Content-Types? I tried without success: mimeheader NAMELESSGIF_ATTACHME

Re: [sa-list] Re: Image spam and failing rule

2009-04-26 Thread Henrik K
On Sun, Apr 26, 2009 at 04:11:10PM -0400, Dan Mahoney, System Admin wrote: > On Sat, 25 Apr 2009, John Hardin wrote: > >> On Sat, 25 Apr 2009, Gary Forrest wrote: >> >>> We are receiving the same image spam many times, random text within >>> the body. >> >> FuzzyOCR. It seems Spammers are trying i

Re: [sa-list] Re: Image spam and failing rule

2009-04-26 Thread Dan Mahoney, System Admin
On Sat, 25 Apr 2009, John Hardin wrote: On Sat, 25 Apr 2009, Gary Forrest wrote: We are receiving the same image spam many times, random text within the body. FuzzyOCR. It seems Spammers are trying image spam again, after giving up on it for a year or so. Is there a version of FuzzyOCR th

Re: Image spam and failing rule

2009-04-26 Thread Theo Van Dinter
It's already been mentioned, but mimeheader is the right way to look at the headers of MIME parts. The rule of thumb is "if you are using 'full' you're probably doing it wrong". :) On Sun, Apr 26, 2009 at 11:57 AM, Charles Gregory wrote: > On Sat, 25 Apr 2009, Gary Forrest wrote: >> >> We are r

Re: Image spam and failing rule

2009-04-26 Thread Charles Gregory
On Sat, 25 Apr 2009, Gary Forrest wrote: We are receiving the same image spam many times, random text within the body. The only common thing is a image attachment, with the filename in the following format DSL1234.png I have made the following ' RAWBODY ' rule /dsl[0-9]{4}\.png/i You need to

Re: Image spam and failing rule

2009-04-25 Thread RW
On Sat, 25 Apr 2009 16:10:41 -0500 Igor Chudov wrote: > On Sat, Apr 25, 2009 at 02:09:05PM -0700, John Hardin wrote: > > On Sat, 25 Apr 2009, Gary Forrest wrote: > > FuzzyOCR. It seems Spammers are trying image spam again, after > > giving up on it for a year or so. > > > > Why did spammers giv

Re: Image spam and failing rule

2009-04-25 Thread Igor Chudov
On Sat, Apr 25, 2009 at 02:09:05PM -0700, John Hardin wrote: > On Sat, 25 Apr 2009, Gary Forrest wrote: > >> We are receiving the same image spam many times, random text within the >> body. > > FuzzyOCR. It seems Spammers are trying image spam again, after giving up > on it for a year or so. >

Re: Image spam and failing rule

2009-04-25 Thread John Hardin
On Sat, 25 Apr 2009, Gary Forrest wrote: We are receiving the same image spam many times, random text within the body. FuzzyOCR. It seems Spammers are trying image spam again, after giving up on it for a year or so. -- John Hardin KA7OHZhttp://www.impsec.org/~jhardin/

Re: Image spam and failing rule

2009-04-25 Thread James Wilkinson
Gary Forrest wrote: > Hi All > > We are receiving the same image spam many times, random text within the > body. > The only common thing is a image attachment, with the filename in the > following format > > DSL1234.png > > I have made the following ' RAWBODY ' rule > > /dsl[0-9]{4}\.png/i >

Image spam and failing rule

2009-04-25 Thread Gary Forrest
Hi All We are receiving the same image spam many times, random text within the body. The only common thing is a image attachment, with the filename in the following format DSL1234.png I have made the following ' RAWBODY ' rule /dsl[0-9]{4}\.png/i This rule works if the text appears in th