zipped excel spam |
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ImInAfrica
Groupie Joined: 27 June 2006 Location: FL, USA Status: Offline Points: 60 |
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Posted: 29 July 2007 at 11:18am |
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Hi, BIG red letters: Turn $10,000 into $40,000
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Thermo
Newbie Joined: 10 July 2006 Location: Canada Status: Offline Points: 25 |
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I am seeing these, email body is blank as well. This update is in the latest version, maybe it could be made to handle other attachment types with blank email bodies? We could specify the attachment types or use a wildcard for any type.
Thermo {TODO -cNew : SpamFilter will now block emails that contain an empty, blank body and also a PDF attachment, the new setting in the .ini file is on by default: BlockBlankEmailsWithPDFAttachments=true} |
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LogSat
Admin Group Joined: 25 January 2005 Location: United States Status: Offline Points: 4104 |
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We're beta testing a new build which is doing exactly what Thermo suggested. If testing goes well, we'll be releasing it publicly within a few days. Please contact us by email if you wish to test it (licensed users only). Please also include your order number in the email.
The change replaces the option in the SpamFilter.ini file introduced with build 700 (BlockBlankEmailsWithPDFAttachments) with the following: ;SpamFilter can block emails that contain only an empty, blank body and one of the following attachment. Clear the list if you don't want to stop such emails. Specify multiple attachments separated by commas BlockBlankEmailsWithAttachments=*.pdf |
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Stupid
Senior Member Joined: 28 November 2005 Status: Offline Points: 127 |
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Why not just block *.zip? I block all emails with any executable or audio/video or compressed file.
You may not want to go to this extreme, but blocking zip file is a good practice. |
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mbrusl
Groupie Joined: 05 December 2005 Location: Thunder Bay Ont Status: Offline Points: 61 |
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What happens when you need to receive a zip file or some other format from someone and your blocking it? Thats why I quarantine them instead. But then again, I also scan all emails as it enters the gateway. Michael |
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Stupid
Senior Member Joined: 28 November 2005 Status: Offline Points: 127 |
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Don't think we can quarantine attachment based on file type.
Quarantine all executable files is of great risk to me. I actually another 2 lays to catch any executables that may slip through. If someone wants to send me zip file, I just tell them to rename it to zzz instead of zip. I really depends. I am running a company, not an ISP which may have very different need on how to satisfy customers and cannot be so restrictive. For example, Yahoo does not filter our all executables, if I get infected, that would be my problem. However, if my user get infected, that would be my problem because I am not an ISP.
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sgeorge
Senior Member Joined: 23 August 2005 Status: Offline Points: 178 |
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I don't think I understand why you have added additional layers in order to block executables. SpamFilter is capable blocking any pattern of attachments.
I too manage email for an organization, not an entire ISP, so my attachment policy can afford to be more safe and restrictive. If it's handy, here are all the attachments that I block using SpamFilter:
-Stephen |
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Stupid
Senior Member Joined: 28 November 2005 Status: Offline Points: 127 |
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Because in some rare cases, SPI lets some attachments through.
Try this: http://www.gfi.com/emailsecuritytest/ Disclaimer: I don't work for GFI or sell their products. I am just a user who likes their products. Edited by Stupid |
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sgeorge
Senior Member Joined: 23 August 2005 Status: Offline Points: 178 |
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Thanks, that looks like a very handy tool, I will test that out. I usually test for eicar in a few formats, but haven't encountered a tool with such a variety of tests. Nice
Stephen |
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Stupid
Senior Member Joined: 28 November 2005 Status: Offline Points: 127 |
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If you save a msg with an attachment, then attach that msg as an attachment, it will go through.
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