> Chris, did you maybe see something like this recently? I 
> got a fresh new (undetected) virus last night that did this.
>
> Oct  5 18:05:42 sf8 amavis[6312]: (06312-04) 
> do_executable/do_unzip failed, ignoring: format error:
> bad signature: 0x00905a4d at offset 0 in file
> /var/lib/amavis/amavis-20051005T165720-06312/parts/p004
>
> Oct  5 18:05:50 sf8 amavis[6312]: (06312-04) Blocked 
> BANNED (multipart/mixed | 
> application/octet-stream,.zip,pword_change.zip | 
> .exe,.exe-ms,PW_Klass.Pic.packed-bitmap.exe | 
> PW_Klass.Pic.packed-bitmap.exe), LOCAL [10.10.10.13]
> [213.165.64.20] <[EMAIL PROTECTED]> -> <[EMAIL PROTECTED]>,
> quarantine: [EMAIL PROTECTED], Message-ID: 
> <[EMAIL PROTECTED]>, mail_id: 
> twvrh8bxFLNq, Hits: -, 8331 ms

Yeah I've gotten similar ones.  This was a recent thread on
postfix-users as well.  

I don't block zip, but I block windows executables within compressed
archives.  amavisd-new picks up executables within encrypted zips as
well.  I also block message/partial message/external-body RFC2046 MIME
types.  I'm debating whether or not to ban zip - some users use .zip to
send large files.

I've noticed a lot of our business partners don't allow .zip either out
of extreme caution or because of primitive filters which can't inspect
zip content.  What do you on these lists do?

---
Chris Covington
IT
Plus One Health Management
75 Maiden Lane Suite 801
New York, NY 10038
646-312-6269
http://www.plusoneactive.com


-------------------------------------------------------
This SF.Net email is sponsored by:
Power Architecture Resource Center: Free content, downloads, discussions,
and more. http://solutions.newsforge.com/ibmarch.tmpl
_______________________________________________
AMaViS-user mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/amavis-user
AMaViS-FAQ:http://www.amavis.org/amavis-faq.php3
AMaViS-HowTos:http://www.amavis.org/howto/

Reply via email to