SANS ISC: InfoSec Handlers Diary Blog

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InfoSec Handlers Diary Blog

Nathan reported today that he has been seeing a new trend of web scanning against his webservers looking for /info/whitelist.pac. The scanning he has observed is over SSL. He has been observing this activity since the 22 Aug.

[22/Aug/2014:18:55:32 -0500]    xx.12.93.178    GET /info/whitelist.pac HTTP/1.1   Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)
[...]
[14/Sep/2014:11:10:05 -0500]    xx.216.137.7    GET /info/whitelist.pac HTTP/1.1   Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)
[14/Sep/2014:13:16:19 -0500]    xx.174.190.254 GET /info/whitelist.pac HTTP/1.1   Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)
[14/Sep/2014:14:03:48 -0500]    xx.252.188.49   GET /info/whitelist.pac HTTP/1.1   Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)
[14/Sep/2014:17:10:40 -0500]    xx.17.199.47     GET /info/whitelist.pac HTTP/1.1   Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)
[14/Sep/2014:21:10:26 -0500]    xx.13.136.13     GET /info/whitelist.pac HTTP/1.1   Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)
[16/Sep/2014:06:30:15 -0500]    xx.10.51.74       GET /info/whitelist.pac HTTP/1.1   Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)
[16/Sep/2014:14:03:54 -0500]    xx.240.174.203  GET /info/whitelist.pac HTTP/1.1   Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)

Is anyone else seeing similar activity against their webservers?

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Guy Bruneau IPSS Inc. gbruneau at isc dot sans dot edu