[clamav-users] Hint for creating signatures

Hajo Locke Hajo.Locke at gmx.de
Mon Sep 8 14:16:24 UTC 2014


Hello,

sorry for links to my translator. I thought thunderbird is removing this 
when choosing pure-text-format.
now it is readable:

Am 08.09.2014 um 16:04 schrieb Hajo Locke:
> Hello,
>
> from time to time  i create some signatures from what i found in 
> php-code of my users.
> Now i found some malware that worries me. Its obfuscated php-code to 
> execute all which was sent by POST (mostly spammails). If i unencrypt 
> the code, so i always find the same malwarecode. But code how it can 
> be found in php-page is always variable.
>
> samples can be found here for next 2 weeks: http://pastebin.com/9VAW8FKK
>
> What should i do now? Is there a trick to find a signature which fits 
> for all samples or i have to create a different signature for every 
> sample?
> What  is  your  view  on this  subject?
>
> Thanks,
> Hajo
>
>
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