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Link for all options : https://beta.shodan.io/search/filters

Negate searches can be done with !

Searching via the API is even more simpler and more powerfull.

Small example of a script to generate IP list + certs of hosts that match CobalStrike JARM signature. It will also output a CSV file with the trusted URLs

Example of really really suspicious Domain names

update03.microsoft-essentials.com,Let’s Encrypt Authority X3
training42.microsoft-essentials.com,Let’s Encrypt Authority X3
*.microsoftupdate.space,Let’s Encrypt Authority X3
awsstreamingservices.xyz,Let’s Encrypt Authority X3

The 1st 3 have been reported to MSRC

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