He didn’t, I was just referencing Mimecast to indicate it was probably larger than Charter’s DNS. Given the reports that someone else gave from Virustotal, it seems it’s more widespread than first reported. Greg Dickinson, CCNA Network Engineer [mid:ac0798f5d04aec2c4c40f9c44056646c8ba72bfb332f7f64d451d99665886e29@getboxer.com/image001.png@01D2DDE3.06E76B70] From: NANOG <nanog-bounces+greg.dickinson=bryantbank.com@nanog.org> On Behalf Of Bryan Fields Sent: Wednesday, October 25, 2023 2:51 PM To: nanog@nanog.org Subject: Re: Charter DNS servers returning invalid IP addresses This Message originates from outside Bryant Bank. Please use caution when opening this correspondence, attachments or hyperlinks (URLs). If you have questions, please contact IT Support. Thank you. On 10/25/23 2:41 PM, Greg Dickinson wrote:
If it helps troubleshooting, when I click the domain in the email Mimecast tells me:
“We checked the website you are trying to access for malicious and spear-phishing content and found it likely to be unsafe.”
I saw nothing referencing Mimecast in the original email. Where did you see this? bonesinjars.com<https://secure-web.cisco.com/1QQZVslnfiRjBtYsKz_oXFZ_6WtTz9sVZ_f0uvfIVeQ2J1pIidIRXn6_jdq-yZOHUogW_K6VK7D0Z1XlMCU582_TcZAVhTdpiq9JxixxYbkJfGT49HwTOslxUlMJyF7N2kN6HGX2LhEGO9n3mr5OwxMrdseSfDjdEqt8CduYaiS4G2LDlbe8Dg2l0amB-7s_zlqczuasnjL0pQdK7KvyQKqUHW_aEjlr6tbm-Ot4IBuFYyVgFvyCt4ELqnUS74BeHrFwprUthd9Gs2KHJTNoJubcCC3u5rmijvsEmteQDOe-1FIdONODBxWbubyjpRccL/https%3A%2F%2Fprotect-usb.mimecast.com%2Fs%2FFF75CB1GO7fVEN2TNemvK%3Fdomain%3Dbonesinjars.com> is not signed with DNSSEC. This is trivial to setup and might prevent some of this. Probably not a good idea for your customers to rely on $BIGCABLE DNS servers. -- Bryan Fields 727-409-1194 - Voice http://bryanfields.net<https://secure-web.cisco.com/1IMgbVJ8gycWN6tw-46nbbWjKIELzO75mx5XvOPS1W9lFcp-t5iPb6Z6pom_P03J9roVyNep9lT5w4tQ38iAYBobJI4sey3-XZisw2KcRArZXNJsOQZ0GEd0TR2wOdJLQqdU170lylzPwbJ6UWgjTvMlPaCE_u7WdxOX9gCG7M20OzhYTA0TRtif-nRWHyCQKT7sBiFlPcItRDX_CLbnsg4NIjnn-NlUpGkbnCUe2x_MG5y8ed6IODpcaiWvjb4-1NPVharBH-SfJW3KRxmxaOtf-uxLSK2fZH91teBZ6v6HkeoLdoyWaprqZAWMuY_dd/https%3A%2F%2Fprotect-usb.mimecast.com%2Fs%2F76FZCDwK67fBgZGHZQHy_%3Fdomain%3Dbryanfields.net> NOTICE: This electronic mail message and any files transmitted with it are intended exclusively for the individual or entity to which it is addressed. The message, together with any attachment, may contain confidential and/or privileged information. Any unauthorized review, use, print, save, copy, disclosure or distribution is strictly prohibited. If you have received this message in error, please immediately advise the sender by reply email and delete copies. Thank you.