[clamav-users] FP Heuristics.Phishing.Email.SpoofedDomain with amazon

[Al Varnell]

I'm not very good at regex, but I'm surprised that this current X record doesn't already take care of this:

X:.+\.amazon\.(at|ca|co\.uk|co\.jp|com|de|fr)([/?].*)?:.+\.amazon\.com([/?].*)?

-Al-

On Tue, Nov 14, 2017 at 01:19 AM, Hajo Locke wrote:
> Hello List,
> 
> i think i found an fp in incoming mail.  I cant submit mail as FP on website, because it contains private data.
> I can provide debug output which leads to match:
> 
> LibClamAV debug: Phishcheck:URL after cleanup: https://sellercentral-europe.amazon.com- <https://sellercentral-europe.amazon.com-/>>http://www.amazon.de <http://www.amazon.de/>
> LibClamAV debug: Phishing: looking up in whitelist: https://sellercentral-europe.amazon.com:http://www.amazon.de <https://sellercentral-europe.amazon.com:http://www.amazon.de>; host-only:0
> LibClamAV debug: Looking up in regex_list: https://sellercentral-europe.amazon.com:http://www.amazon.de/ <https://sellercentral-europe.amazon.com:http://www.amazon.de/>
> LibClamAV debug: Lookup result: not in regex list
> LibClamAV debug: Phishcheck:host:.www.amazon.de <http://www.amazon.de/>
> LibClamAV debug: Looking up in regex_list: www.amazon.de/ <http://www.amazon.de/>
> LibClamAV debug: calc_pos_with_skip: skip:15, 7 - 20 "http://www.amazon.de <http://www.amazon.de/>","www.amazon.de/ <http://www.amazon.de/>"
> LibClamAV debug: calc_pos_with_skip:
> LibClamAV debug: calc_pos_with_skip: skip:4, 7 - 20 "http://www.amazon.de <http://www.amazon.de/>","www.amazon.de/ <http://www.amazon.de/>"
> LibClamAV debug: calc_pos_with_skip:amazon.de <http://amazon.de/>
> LibClamAV debug: Got a match: www.amazon.de/ <http://www.amazon.de/> with /ed.nozama
> LibClamAV debug: Before inserting .: .www.amazon.de <http://www.amazon.de/>
> LibClamAV debug: Lookup result: in regex list
> LibClamAV debug: Phishcheck:host:.sellercentral-europe.amazon.com <http://sellercentral-europe.amazon.com/>
> LibClamAV debug: Phishing: looking up in whitelist: .sellercentral-europe.amazon.com <http://sellercentral-europe.amazon.com/>:.www.amazon.de <http://www.amazon.de/>; host-only:1
> LibClamAV debug: Looking up in regex_list: sellercentral-europe.amazon.com <http://sellercentral-europe.amazon.com/>:www.amazon.de/ <http://www.amazon.de/>
> LibClamAV debug: Lookup result: not in regex list
> LibClamAV debug: Phishcheck: Phishing scan result: URLs are way too different
> LibClamAV debug: found Possibly Unwanted: Heuristics.Phishing.Email.SpoofedDomain
> 
> Mail contains a link https://sellercentral-europe.amazon.com/nms/redirect <https://sellercentral-europe.amazon.com/nms/redirect>..... which redirects to http://www.amazon.de/gp/help/survey?p <http://www.amazon.de/gp/help/survey?p>....
> These are default links from amazon to rate seller/product and should be an allowed combination of redirects.
> It is possible to do a global update of this combination within heuristics?
> Otherwise i had to whitelist by wdb file:
> 
> X:.+sellercentral-europe\.amazon\.com:.+amazon\.de
> 
> Thanks,
> Hajo
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