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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

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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

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[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

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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

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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

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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

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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

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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

  • Botconf 2023 Wrap-Up Day #3
  • Botconf 2023 Wrap-Up Day #2
  • Botconf 2023 Wrap-Up Day #1
  • [SANS ISC] A Backdoor with Smart Screenshot Capability
  • This Blog Has 20 Years!

Time Machine

Popular Articles

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Recent Tweets

  • Any Follower who could share a Win11 USB boot image with me? I've trouble building one :( #PleaseRT

    June 1, 2023 08:06

  • Marketing & processes will kill me. I received a letter today confirming that my *digital* access has been set up...

    May 31, 2023 13:20

  • And meet plenty of Handlers! twitter.com/johullrich/status/…

    May 30, 2023 17:11

  • The preferred super-hero of malware analysts… #80s pic.twitter.com/Y0F7mNRtVi

    May 28, 2023 16:37

  • On my way back to ! Thanks to the #BSidesDublin2023 crew for the great event!

    May 28, 2023 03:43

RSS NVD Vulnerabilities Feed

  • CVE-2023-2933 (chrome) May 30, 2023
    Use after free in PDF in Google Chrome prior to 114.0.5735.90 allowed a remote attacker to potentially exploit heap corruption via a crafted PDF file. (Chromium security severity: High)
  • CVE-2023-2934 (chrome) May 30, 2023
    Out of bounds memory access in Mojo in Google Chrome prior to 114.0.5735.90 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)
  • CVE-2023-2941 (chrome) May 30, 2023
    Inappropriate implementation in Extensions API in Google Chrome prior to 114.0.5735.90 allowed an attacker who convinced a user to install a malicious extension to spoof the contents of the UI via a crafted Chrome Extension. (Chromium security severity: Low)
  • CVE-2023-2932 (chrome) May 30, 2023
    Use after free in PDF in Google Chrome prior to 114.0.5735.90 allowed a remote attacker to potentially exploit heap corruption via a crafted PDF file. (Chromium security severity: High)
  • CVE-2023-2936 (chrome) May 30, 2023
    Type Confusion in V8 in Google Chrome prior to 114.0.5735.90 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)
  • CVE-2023-2931 (chrome) May 30, 2023
    Use after free in PDF in Google Chrome prior to 114.0.5735.90 allowed a remote attacker to potentially exploit heap corruption via a crafted PDF file. (Chromium security severity: High)
  • CVE-2023-2937 (chrome) May 30, 2023
    Inappropriate implementation in Picture In Picture in Google Chrome prior to 114.0.5735.90 allowed a remote attacker who had compromised the renderer process to spoof the contents of the Omnibox (URL bar) via a crafted HTML page. (Chromium security severity: Medium)
  • CVE-2023-2930 (chrome) May 30, 2023
    Use after free in Extensions in Google Chrome prior to 114.0.5735.90 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)
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