You have the source IP, port, and time. What more do you need to determine who's doing it?
I'm assuming you're NATing customers at the router in question. ----- Mike Hammett Intelligent Computing Solutions Midwest Internet Exchange The Brothers WISP ----- Original Message ----- From: "Christopher Tyler" <ch...@totalhighspeed.net> To: "AnimalFarm Microwave Users Group" <af@af.afmug.com> Sent: Friday, June 19, 2020 10:59:30 AM Subject: [AFMUG] Issue with Google So the other day we got an email (excerpt below) from Google's automated tool... We are seeing automated scraping of Google Web Search from a large number of your IPs. Automated scraping violates our /robots.txt file and also our Terms of Service. We request that you terminate this traffic immediately. Failure to do so may cause your network to be blocked by our abuse systems. To allow you to identify the traffic, we are providing a list of your IPs they used today (Source field), as well as the most common destination (Google) IP and port and a timestamp of a recent request (in UTC) to aid in your identification. Note that this list may not be exhaustive, and we request that you terminate all such traffic, not just traffic from IPs in this list. All of the destination ports (to Google) are either 80 or 443, so they at least appear to be legit web traffic on the surface. They are obviously spoofed IP address as there are network addresses in the list and the IP belongs to a router that doesn't appear to be compromised in any way. The initial letter included 700+ IP addresses from our network. It's now affecting our customers as they are now getting Captcha's for every couple of Google searches that they perform. Does anyone know of a good way to track the perpetrator(s) down and/or know of a way to mitigate this? -- Christopher Tyler Senior Network Engineer MTCRE/MTCNA/MTCTCE/MTCWE Total Highspeed Internet Solutions 1091 W. Kathryn Street Nixa, MO 65714 (417) 851-1107 x. 9002 www.totalhighspeed.com -- AF mailing list AF@af.afmug.com http://af.afmug.com/mailman/listinfo/af_af.afmug.com
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