An Alternative to Shodan, Censys with User-Agent CensysInspect/1.1
I have well over 2 years of honeypot logs and only started seeing CensysInspect user-agent in my logs about 2 months ago. Most of us are familiar with Shodan and often use it to find what is or was exposed to the Internet. This is an alternative site to search the same data with 3 available search options, by IPv4, websites and certificates.
This is an example of what can be seen in webserver logs:
20201024-071114: 192.168.25.9:80-167.248.133.52:54072 data 'GET / HTTP/1.1\r\nHost: 70.50.xx.xx\r\nUser-Agent: Mozilla/5.0 (compatible; CensysInspect/1.1; +https://about.censys.io/)\r\nAccept: */*\r\nAccept-Encoding: gzip\r\n\r\n'
Planning to do more than 10 queries per day, you need to register, it is free and check this page that show examples on how to to query de data.
This scanner works by grabbing banner and collecting all information being leaked by insecure devices which get categorized and stored for "research" purposes. According to their FAQ, it uses Zmap which "[...] can scan the entire public IPv4 address space in under 45 minutes." and uses "ZGrab can perform a TLS connection and collect the root HTTP page of all hosts ZMap finds on TCP/443." The information captured is like what Shodan provides:
This is an alternative to find Internet-facing systems, finding open ports and services that listen on a port. Censys probes for more than just the standard known ports. This is some of the ports starting with the top (total in 2 months > 1000 ports).
IP Ranges included in the probes:
74.120.14.33-74.120.14.52
162.142.125.23-162.142.125.57
167.248.133.33-167.248.133.52
192.35.168.193-192.35.168.251
[1] https://censys.io
[2] https://www.shodan.io
[3] https://censys.io/ipv4/help
[4] https://support.censys.io/hc/en-us/articles/360038378552-Frequently-Asked-Questions-FAQ
[5] https://zmap.io
[6] https://isc.sans.edu/ipinfo.html?ip=167.248.133.52
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Guy Bruneau IPSS Inc.
My Handler Page
Twitter: GuyBruneau
gbruneau at isc dot sans dot edu
Comments
www
Nov 17th 2022
6 months ago
EEW
Nov 17th 2022
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qwq
Nov 17th 2022
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mashood
Nov 17th 2022
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isc.sans.edu
Nov 23rd 2022
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isc.sans.edu
Nov 23rd 2022
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isc.sans.edu
Dec 3rd 2022
5 months ago
isc.sans.edu
Dec 3rd 2022
5 months ago
<a hreaf="https://technolytical.com/">the social network</a> is described as follows because they respect your privacy and keep your data secure. The social networks are not interested in collecting data about you. They don't care about what you're doing, or what you like. They don't want to know who you talk to, or where you go.
<a hreaf="https://technolytical.com/">the social network</a> is not interested in collecting data about you. They don't care about what you're doing, or what you like. They don't want to know who you talk to, or where you go. The social networks only collect the minimum amount of information required for the service that they provide. Your personal information is kept private, and is never shared with other companies without your permission
isc.sans.edu
Dec 26th 2022
5 months ago
isc.sans.edu
Dec 26th 2022
5 months ago