Tiscali / TalkTalk User

bazzer · 21-11-2006, 01:26 PM

Hi
I get loads of this kind of spam http://www.igotspam.com/50226711/gif_spam_again.php
and I'm wondering if I can set the spam filters on the servers to automatically junk anything that's got a gif attachment. There's a field called 'Field Name' that doesn't give any more clues, can I fill this with something? If so what?

TIA
Baz

bazzer · 02-12-2006, 03:18 PM

er... bump....

DavidC · 02-12-2006, 04:57 PM

I wish I could too.

atsw · 03-12-2006, 08:57 AM

We've seen a massive increase in these types of SPAM at work over the last few months (not F2S connection or e-mail). We use SpamAssassin running on the mail gateway which works very well, but failed to tag a lot of the GIF based spam. However, one of our IT bods found a GIF reader plugin which can read the content of the GIF using an OCR technique and installed that - dramatic improvement, almost all GIF based spam is now tagged.

Of course the spammers are trying to stay one step ahead, I see that they are now using 'wobbly' text in their GIF spam to try and defeat the OCR reader

.

Andrew

John · 03-12-2006, 02:27 PM

Why not just do as we have done and block GIFs? If you are needing to email photos jpegs are an alternative format, and since we blocked GIFs in general our spam levels have reduced, fine they are still high but it has stopped one type of spam we get.

atsw · 03-12-2006, 04:17 PM

Quote:

Originally Posted by John

Why not just do as we have done and block GIFs?

Yep, that was, in fact, our first approach. However, our tech guys like to try and get one-up on the spammers if they can, so thought they would have a go with the plug-in

, if nothing else, just to see how good it was

(and it was/still is very good).

Andrew

jillj28 · 03-12-2006, 09:32 PM

Please may I ask how you block spam gif emails? They're driving me nuts!

I use Thunderbird.

Thank You

John · 03-12-2006, 09:45 PM

I think its more a thing to do on the Server / using other 3rd party software rather than in the mail client, so you may be out of luck.

bazzer · 04-12-2006, 08:03 AM

Would I be able to put 'Content-Type' and filter for 'multipart/related' safely?

21-11-2006, 01:26 PM	#1
bazzer Tiscali User Member Join Date: Jun 2006 Posts: 13 Thanks: 0 Thanked 0 Times in 0 Posts	GIF Spam Hi I get loads of this kind of spam http://www.igotspam.com/50226711/gif_spam_again.php and I'm wondering if I can set the spam filters on the servers to automatically junk anything that's got a gif attachment. There's a field called 'Field Name' that doesn't give any more clues, can I fill this with something? If so what? TIA Baz

03-12-2006, 08:57 AM	#4
atsw Tiscali User Member Join Date: Feb 2005 Location: Oxfordshire Posts: 750 Thanks: 0 Thanked 0 Times in 0 Posts	We've seen a massive increase in these types of SPAM at work over the last few months (not F2S connection or e-mail). We use SpamAssassin running on the mail gateway which works very well, but failed to tag a lot of the GIF based spam. However, one of our IT bods found a GIF reader plugin which can read the content of the GIF using an OCR technique and installed that - dramatic improvement, almost all GIF based spam is now tagged. Of course the spammers are trying to stay one step ahead, I see that they are now using 'wobbly' text in their GIF spam to try and defeat the OCR reader . Andrew __________________ NEWNET - HOME M (Previously Freedom2Surf - Cascade Lite)

03-12-2006, 02:27 PM	#5
John Tiscali User Team Join Date: Oct 2004 Location: Yorkshire Dales Posts: 688 Thanks: 1 Thanked 0 Times in 0 Posts	Why not just do as we have done and block GIFs? If you are needing to email photos jpegs are an alternative format, and since we blocked GIFs in general our spam levels have reduced, fine they are still high but it has stopped one type of spam we get. __________________ John Tiscali User Team Netgear DG834G v2 Wifi-Router Sync'd at 6.0MBit 20GB Capped F2S Cascade Custom Built Lian-Li Fish Tank powered PC! *********************************** Life is greener now were Tiscali User.**

03-12-2006, 09:45 PM	#8
John Tiscali User Team Join Date: Oct 2004 Location: Yorkshire Dales Posts: 688 Thanks: 1 Thanked 0 Times in 0 Posts	I think its more a thing to do on the Server / using other 3rd party software rather than in the mail client, so you may be out of luck. __________________ John Tiscali User Team Netgear DG834G v2 Wifi-Router Sync'd at 6.0MBit 20GB Capped F2S Cascade Custom Built Lian-Li Fish Tank powered PC! *********************************** Life is greener now were Tiscali User.**

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02-12-2006, 03:18 PM	#2
bazzer Tiscali User Member Join Date: Jun 2006 Posts: 13 Thanks: 0 Thanked 0 Times in 0 Posts	er... bump....

02-12-2006, 04:57 PM	#3
DavidC Tiscali User Member Join Date: Apr 2005 Posts: 303 Thanks: 0 Thanked 0 Times in 0 Posts	I wish I could too.

03-12-2006, 09:32 PM	#7
jillj28 Tiscali User Member Join Date: Feb 2006 Posts: 63 Thanks: 0 Thanked 0 Times in 0 Posts	Please may I ask how you block spam gif emails? They're driving me nuts! I use Thunderbird. Thank You

04-12-2006, 08:03 AM	#9
bazzer Tiscali User Member Join Date: Jun 2006 Posts: 13 Thanks: 0 Thanked 0 Times in 0 Posts	Would I be able to put 'Content-Type' and filter for 'multipart/related' safely?

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