Skip to content
/dev/random

/dev/random

"If the enemy leaves a door open, you must rush in." – Sun Tzu

  • About Me
    • About Me
    • Online Presentations
    • PGP Public Key
  • Disclaimer
  • Tools
    • alerts2afterglow
    • hoover
    • inotes.py
    • known_hosts_bruteforcer
    • pastemon
    • oplb
    • ossec_dashboard
    • ossec2dshield
    • twittermon
    • rrhunter
    • syslog2loggly

Tag: Scan

Tor IP Renewal For The Win

November 30, 2021 Pentesting, Security, Software, Websites Leave a comment

I’m using Tor for so long that I can’t remember! The main reasons to use it are to access some websites while preserving my anonymity (after all that’s the main purpose of Tor) but also to access dangerous resources like command & control servers or sites delivering malicious content. The

Continue reading »

What’s Hosted Behind ngrok.io?

January 7, 2021 Security Leave a comment

A few weeks ago I wrote an ISC diary about a piece of malicious code that used ngrok.io to communicate with the C2 server. Just a quick reminder about this service: it provides a kind of reverse-proxy for servers or applications that people need to publish on the Internet. I

Continue reading »

[SANS ISC] Mirai-alike Python Scanner

October 20, 2020 Python, SANS Internet Storm Center, Security Leave a comment

I published the following diary on isc.sans.edu: “Mirai-alike Python Scanner“: Last week, I found an interesting Python script that behaves like a Mirai bot. It scans for vulnerable devices exposing their telnet (TCP/23) interface in the wild, then tries to connect using a dictionary of credentials. The script has been uploaded to

Continue reading »
SANS ISC

[SANS ISC] New Waves of Scans Detected by an Old Rule

April 4, 2019 SANS Internet Storm Center, Security Leave a comment

I published the following diary on isc.sans.edu: “New Waves of Scans Detected by an Old Rule“: Who remembers the famous ShellShock (CVE-2014-6271)? This bug affected the bash shell in 2014 and was critical due to the facts that it was easy to exploit and that bash is a widespread shell

Continue reading »

Show me your SSID’s, I’ll Tell Who You Are!

January 12, 2012 Privacy, Security 33 comments

The idea of this article came from a colleague of mine. He wrote a first version of the script described below. I found it very useful and asked his permission to re-use it and to write this blog article. Thanks to him! In the mean time, during my researches, I

Continue reading »

Suspicious WordPress Plugins Scan

July 8, 2011 Security, Software 6 comments

Here is an interesting example I would like to share with you. It proves how log management is important. If you read my blog, you already know that I’m addicted to logs. They can be very useful to trace incidents or suspicious activities. Today I received several alerts from my

Continue reading »

You said “Goolag”?

February 21, 2008 Security, Software Leave a comment

The Cult of the Death Cow team is back with a new toy called Goolag. One more time, the Google search engine power is diverted to help webmasters to find security breaches in their web site(s). Of course, as a good boy, you will always use Goolag against your own

Continue reading »

Upcoming Events

Here is a list of events that I will attend and cover via Twitter and wrap-ups. Ping me if you want to meet! The list is regularly updated.

SANS Munich 2023

Recent Articles

  • Hack.lu 2023 Wrap-Up
  • [SANS ISC] macOS: Who’s Behind This Network Connection?
  • [SANS ISC] Python Malware Using Postgresql for C2 Communications
  • [SANS ISC] More Exotic Excel Files Dropping AgentTesla
  • [SANS ISC] Have You Ever Heard of the Fernet Encryption Algorithm?

Time Machine

Recent Tweets

  • Error: Could not authenticate you.

RSS NVD Vulnerabilities Feed

Copyright Xavier Mertens © 2003-2023 | Powered by Xameco.
This website uses cookies to improve your experience. By using our services, you agree to our use of cookies. Accept Learn more
Privacy & Cookies Policy

Privacy Overview

This website uses cookies to improve your experience while you navigate through the website. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. We also use third-party cookies that help us analyze and understand how you use this website. These cookies will be stored in your browser only with your consent. You also have the option to opt-out of these cookies. But opting out of some of these cookies may affect your browsing experience.
Necessary
Always Enabled
Necessary cookies are absolutely essential for the website to function properly. This category only includes cookies that ensures basic functionalities and security features of the website. These cookies do not store any personal information.
Non-necessary
Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. It is mandatory to procure user consent prior to running these cookies on your website.
SAVE & ACCEPT