-
November 23rd, 2006, 03:29 PM
#1
PNG attachments??
OK
As of late ( new ISP and email service) we have been receiving alot of spam with .png attachments....
as I understand it these are image files similare to gif, jpeg etc
They are coming as an attachment.
body of the message is
Hi,
your document is here.
Then random text
aerial under the glass. A handle stuck out one side.
I am getting 4 of these a day ...rightly so identified as Junk....(still tweaking the new spam filters...)
My question is...can this .PNG file be malicious??? :shock:
My symantec isnt finding anything...defs Nov 22 rev 19
Just curious...
MLF
How people treat you is their karma- how you react is yours-Wayne Dyer
-
November 23rd, 2006, 03:55 PM
#2
It could be related to this one:
http://www.microsoft.com/technet/sec.../ms05-009.mspx
It could also be they're just using another approach besides gif and jpg
Oliver's Law:
Experience is something you don't get until just after you need it.
-
November 23rd, 2006, 04:14 PM
#3
The short answer is no, if the PNG file is actually a PNG image. The reason they are doing this (spammers) is because many of the spam engines are wise to the same approach will common image formats such as BMP, JPG, GIF, etc. It's just another attempt at beating the logic of your filters/appliances.
--TH13
Last edited by thehorse13; November 23rd, 2006 at 04:17 PM.
Our scars have the power to remind us that our past was real. -- Hannibal Lecter.
Talent is God given. Be humble. Fame is man-given. Be grateful. Conceit is self-given. Be careful. -- John Wooden
-
November 23rd, 2006, 07:22 PM
#4
Many thanks....I think I am just seeing more spam then before til I get these new filters set.
Least its not a new exploit....all systems should be patched......
MLF
How people treat you is their karma- how you react is yours-Wayne Dyer
-
November 28th, 2006, 06:07 PM
#5
You aren't seeing more spam due to any filter action. There's a massive global increase in spam at the moment. Read:
http://www.theregister.co.uk/2006/10...et_spam_surge/
-
November 28th, 2006, 06:18 PM
#6
actually I was seeing more spam....because we had no filtering on our new mail server.
The filters are now at full tilt...now instead of 3 average spam per mailbox per hour...I get maybe 3 a day that get through.
And yes I was aware of the increase in the last while.
My concern is that I was seeing stuff that was usually filtered before.....and was just curious as to the nature of these types of attachments....encase on of our users clicked on it.....
Our SPAM filter is working just fine now.....not much squeaking through at all.
Thanks for the info
MLF
How people treat you is their karma- how you react is yours-Wayne Dyer
-
November 28th, 2006, 06:44 PM
#7
Originally Posted by morganlefay
actually I was seeing more spam....because we had no filtering on our new mail server.
That might cause an increase in spam, yes
It's a real pain - there must be genuine messages I'm missing because the choice is either aggressive filtering or your inbox filled up with rubbish at a rate of knots.
-
November 28th, 2006, 07:27 PM
#8
It's a real pain - there must be genuine messages I'm missing because the choice is either aggressive filtering or your inbox filled up with rubbish at a rate of knots.
This is where spam appliances come in. They have a wealth of tuning options.
Post Thanksgiving you will *always* see huge increases in spam/phishing. The criminals are out Christmas shopping too.
Our scars have the power to remind us that our past was real. -- Hannibal Lecter.
Talent is God given. Be humble. Fame is man-given. Be grateful. Conceit is self-given. Be careful. -- John Wooden
-
November 28th, 2006, 07:29 PM
#9
Even so .... everyone I know has commented on the massive increase in spam lately. I don't remember such an increase this time last year, but yes, it is thought to be seasonally related.
-
November 29th, 2006, 09:13 PM
#10
Originally Posted by Moira
Even so .... everyone I know has commented on the massive increase in spam lately. I don't remember such an increase this time last year, but yes, it is thought to be seasonally related.
Interesting. I have seen spam spikes each year post Thanksgiving. Nothing new from my vantage point. The creativity and quality of some of the junk is certainly getting better. Amazing how nice of a job one can do when the motivation is to steal. lol.
Volume is up exponentially simply because more and more people are coming online. I forget the statistic for growth ATM but the real problem is that many of them are criminals in third world countries looking to cash in on the biggest crime bonanza in the history of man kind.
--Th13
Our scars have the power to remind us that our past was real. -- Hannibal Lecter.
Talent is God given. Be humble. Fame is man-given. Be grateful. Conceit is self-given. Be careful. -- John Wooden
Posting Permissions
- You may not post new threads
- You may not post replies
- You may not post attachments
- You may not edit your posts
-
Forum Rules
|
|