Re: Win.Backdoor.Joanap

[Y M via Snort-sigs <snort-sigs () lists snort org>]

I certainly didn’t know this! Excellent research and good call not including the rule.

Thanks Alex.
YM
________________________________
From: Alex McDonnell <amcdonnell () sourcefire com>
Sent: Thursday, June 7, 2018 3:03:01 PM
To: Y M
Cc: snort-sigs
Subject: Re: [Snort-sigs] Win.Backdoor.Joanap

Yaser, we looked at the User-Agent: DavClnt rule and found there was no distinction between the malicious traffic and 
traffic from word. Looking at 
blog.didierstevens.com/2017/11/13/webdav-traffic-to-malicious-sites/<http://blog.didierstevens.com/2017/11/13/webdav-traffic-to-malicious-sites/>
 it seems to be expected fallback behavior. We have decided not to publish this rule.

thanks
Alex McDonnell
TALOS

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