niedziela, 15 sierpnia 2021

JS dropper static analysis

From time to time I'm checking Bazaar website to download some samples and try to analyse them in my 'local Lab'. This time I decided to download a file tagged as 'dropper'. Below you'll find the details. Here we go...

piątek, 13 sierpnia 2021

Kernel: Jump into Device

In previous post about kernel I tried to start with some basic kernel modules. Below we'll continue - this time with so called 'devices'. Here we go...

środa, 11 sierpnia 2021

Bounty CORSare

Few days ago someone asked me about CORS-related vulnerabilities. I decided it will be a good idea o try to create a small tool. Below you'll find the whole story. Here we go...

sobota, 7 sierpnia 2021

Kernel: Introduction

Few weeks ago I was invited by one Team to participate as a "guest" during some international CTF competition. Spoiler alert: as I failed strongly during kernel pwn challenges;) (read as: 'mostly all that I tried' ;)) I decided to 'go back' and learn more (to 'try harder' "next time" ;))... Below you'll find few notes from the journey. Here we go...

niedziela, 1 sierpnia 2021

Linux Assembly - Simple shellcode ride

Hi ;) According to our last 'quick intro' with an example of hello_world code in ASM on Linux this time we'll try to create something else. Here we go...

środa, 28 lipca 2021

Quick Intro to Linux Assembly

Some time ago I decided to get back to the ASM on Intel and refresh some of the basics. Below you'll find few notes about it. Here we go... 

wtorek, 13 lipca 2021