User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:66.0) Gecko/20100101 Firefox/66.0
Steps to reproduce:
I was trying to search for a virus named Win32.Adposhel.BS@487219106 and typed it in the adress bar.
Entering any string that is random.stuff@randomstring reproduces the issues at hand.
Entering a string that is random.stuff@something between 1 to 10 characters produces an URL suggestion of an ip adress that changes at every character input, while typing 11 characters after the @-sign displays the string youre typing.
You'll get a Random ip suggestion if you write random.string@1-10 characters, and if you write 11 characters after the @-sign it changes from a suggestion of email@example.com to firstname.lastname@example.org
Typing in Win32.Adposhel.BS@487219106 (and also several other random strings for some reason) leads you to an ip adress in the DoD range.
I got directed to several random ip adresses including ip adresses that starts with 0.0.. and Fort Motors, and the Department of Defence using different random strings.
Also see the screenshots from my findings that i uploaded to: https://imgur.com/a/JKIswrf
Appearantly i can only provide One screenshot using this form.
Also, if my english is bad its because im a non native speaker and im really tired so ill wrap this up now.
Wrote about the issue on https://support.mozilla.org/en-US/questions/1253987
Whichever search engine i have chosen to use should have searched for the string i put in the adress bar.