Untrusted Network

SSL version 2.0 support on web servers in the Czech Republic

📅 Jun 8, 2023 · ☕ 1 min read

Last week, I published an article discussing the weakening support for SSLv2 on web servers on the global internet. While I was writing it, it occurred to me that it might also be interesting to look specifically at the situation as it relates to web servers in the Czech Republic...

SANS ISC Diary - After 28 years, SSLv2 is still not gone from the internet... but we're getting there

📅 Jun 1, 2023 · ☕ 1 min read

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 SSLv2 support on web servers connected to the internet is slowly “dying off”…

SANS ISC Diary - Ongoing Facebook phishing campaign without a sender and (almost) without links

📅 May 15, 2023 · ☕ 1 min read

A new Diary of mine was published today on the SANS Internet Storm Center website. In this one, we’ll take a look at an interesting, long-term phishing campaign targeting Facebook users…

SANS ISC Diary - 'Passive' analysis of a phishing attachment

📅 May 1, 2023 · ☕ 1 min read

A new Diary of mine was published today on the SANS Internet Storm Center website. In this one, we’ll take a look at a “passive”, OPSEC-friendly approach to the analysis of HTML phishing attachments…

SANS ISC Diary - The strange case of Great honeypot of China

📅 Apr 17, 2023 · ☕ 1 min read

A new Diary of mine was published today on the SANS Internet Storm Center website. In this one, we’ll take a look at a sharp increase of Shodan’s detections of honeypots in China…

SANS ISC Diary - Use of X-Frame-Options and CSP frame-ancestors security headers on 1 million most popular domains

📅 Mar 31, 2023 · ☕ 1 min read

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 use of security-related HTTP headers that are able to prevent “framing attacks” on one million most commonly visited domains…

SANS ISC Diary - IPFS phishing and the need for correctly set HTTP security headers

📅 Mar 15, 2023 · ☕ 1 min read

A new Diary of mine was published today on the SANS Internet Storm Center website. In this one, we’ll take a look at several phishing pages hosted on a disributed file system IPFS and shortly dicuss the potential of HTTP security headers to serve as a defense against phishing…

SANS ISC Diary - HTML phishing attachment with browser-in-the-browser technique

📅 Feb 16, 2023 · ☕ 1 min read

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 use of “browser-in-the-browser” technique in a generic phishing campaign…

SANS ISC Diary - SPF and DMARC use on 100k most popular domains

📅 Jan 19, 2023 · ☕ 1 min read

A new Diary of mine was published today on the SANS Internet Storm Center website. In this one, we’ll take a look at SPF and DMARC use on world’s most popular domains…

SANS ISC Diary - Passive detection of internet-connected systems affected by vulnerabilities from the CISA KEV catalog

📅 Jan 11, 2023 · ☕ 1 min read

A new Diary of mine was published today on the SANS Internet Storm Center website. In this one, we’ll take a look at a new function of my TriOp tool and its use for passive identification of systems affected by vulnerabilities listed in the CISA KEV Catalog…