SCHULZ:DK

One person – many ideas!

2024

02

May

The curious case of Ad-blockers

Advertisements, pervasive across the internet, not only disrupt user privacy and experience but also slow down browsing. Ad-blockers offer significant benefits such as enhanced privacy, reduced distractions, faster loading times, and bandwidth conservation. A new site feature now prompts visitors without ad-blockers to consider using them, enhancing overall online experience and privacy.

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11

Apr

neovim showing a notes split

Neovim Note-Taking: A Lua Adventure

A quick look at 7-line piece of neovim lua code that has changed my workflow quite a bit. Note-taking simplicity at its best.

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01

Feb

History of computer viruses

Unveiling the Evolution: A Historical Journey through Computer Viruses

Exploring the evolution of computer viruses from the 1970s to present times, where I discuss the continuous battle between ever-evolving cyber threats and advancing cybersecurity. From pioneering malware like Creeper and Brain to the widespread destruction caused by I Love You and SQL Slammer, each era demonstrates escalating sophistication and societal impact, emphasizing the need for proactive security measures, education, and global collaboration to combat and adapt to these persistent cyber threats.

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2023

23

May

Python virus for fun and profit

Can you write a self-replicating virus in python? I gave it a try.

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2022

24

Nov

black android smartphone

Better mobile privacy via FOSS

Android is great but from a privacy perspective there is a lot to be desired.
At least some of it can be fixed by installing FOSS (Free & Open Source Software) alternatives to common apps. Here I have assembled some of my favorites – Enjoy!

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26

Jan

CVE-2021-4034 – my PoC for PwnKit

I made a Proof of Concept exploit (two actually) for the new Polkit CVE posted yesterday. Find a description and code here.

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26

Jan

Using ctrl-z to toggle process in fg/bg

This is just a simple trick to get ctrl-z in bash to toggle a process between foreground and background.
A small but useful idea.

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2021

25

Oct

Using core dumps for Linux privilege Escalation

A new vulnerability has been discovered that makes it possible to get a privilegded process to core dump in a restricted area.
This can via a few nifty tricks be abused to gain root access to a linux system

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01

Sep

Hacking for a job (or just for fun)

The cyber crime unit of the Danish police has put out a boot2root box to find relevant applicants for a job as web specialist.
I could not resit trying it out.

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21

Jun

Free world-wide Wifi for all IPhones (or how to trash the IPhone wifi settings)

What happens if you put a funky format string as SSID for your wifi AP? For IPhones it can have an unexpected outcome.

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