A new Diary of mine was published today on the SANS Internet Storm Center website. In this one, we’ll take a look at the number of Industrial Control Systems accessible from the internet…

A new Diary of mine was published today on the SANS Internet Storm Center website. In this one, we’ll take a look at how HTTP favicon hashes may be used to identify IP addresses hosting phishing websites…

The first 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 as a whole changed during the past 3 months, but also at specific changes related to support of different versions of SSL and TLS...

A Diary of mine was published today on the SANS Internet Storm Center website. In this one, we’ll take a look at changes in the number of web servers, which support TLS 1.0 and TLS 1.1…

I’ve published version 1.1 of TriOp today. I’ve added CVEs for the recent Exchange vulnerabilities to the vulnerability search list, since Shodan is now capable of detecting systems affected by them. In response to a request from the CSIRT community, I’ve also added the option for use of arbitrary filter along with a list of parameters...

A Diary of mine was published today on the SANS Internet Storm Center. In this one, we take a look at TriOp - my recently published tool, which enables anyone to periodically gather interesting data from Shodan.

TriOp is a tool for quickly gathering information from Shodan.io about the number of IPs which satisfy large number of different queries. Generally, it may be useful to security researchers who wish to use data gathered from Shodan over time as a part of their research (e.g. to show how number of systems exposing remote access protocols to the internet changed as a reaction to new movement restrictions connected to the Covid-19 pandemic) and to CSIRTs, especially national ones, that wish to monitor their constituencies for changes and/or vulnerabilities, but lack the technical tooling that would enable them to periodically scan all of their external IP ranges.

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 at how many publicly accessible systems are still vulnerable to CVE-2019-19781, AKA Shitrix.