The last quarter of 2020 is behind us, which means it's time for another look at some of the interesting ports accessible on public IPs. This time however, we will take a look at how the internet changed during the whole of 2020, not just at the past 3 months...

A Diary of mine was published today on the SANS Internet Storm Center. In this one, we take a look at the increse in support of TLS 1.3 by HTTPS servers and the decrease in support of SSL 2.0.

A Diary of mine was published today on the SANS Internet Storm Center. In this one, we take a look a small issue present in many anti-malware tools, which may be used to bypass file system level folder listing permissions.

A Diary of mine was published today on the SANS Internet Storm Center. In this one, we take a look at how many publicly accessible systems are still vulnerable to CVE-2019-19781, AKA Shitrix.

My recent post on the Internet Storm Center website about the surprisingly high number of systems still affected by critical vulnerabilities, which have been patched for a long time, received quite a positive feedback. I have consequently decided to take a look at the issue in a more comprehensive manner and since I didn’t know, which vulnerabilities Shodan was able to detect, I’ve used my TriOp tool to gather data for all of the approximately 190k CVEs ever published. After couple of days the script took to run, I have the results and they are quite interesting…

A Diary of mine was published today on the SANS Internet Storm Center. In this one, we take a look at couple of pre-2020 high-impact vulnerabilities, which still affect surprising number of publicly accessible systems.

A Diary of mine was published today on the SANS Internet Storm Center. In this one, we take a look at the concerning number of machines connected to the internet, that are still not patched for the critical SMBGhost vulnerability.

A Diary of mine was published today on the SANS Internet Storm Center. In this one, we take a look at phishing campaigns spreading BazarLoader malware and the lures which they use.

A Diary of mine was published today on the SANS Internet Storm Center. In this one, we take a look at phishing kits, which are offered on the indexed part of the web.

If you've read any of my posts about open ports on public IP addresses either here or on the SANS Internet Storm Center website, you probably know that I'm interested in how the internet changes over time and I try to gain at least some understanding of it by analyzing data gathered over time from Shodan. Since I'm probably not the only one who finds the changes in numbers of different open ports interesting, I've decided to start publishing quarterly charts for the number of IPs, which have some of the more interesting ports open/services accessible from the internet...