Author Archives: SebastianB

About SebastianB

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Controls to prevent Petya Outbreak and harden your environment in the future

A quick post with a collective list of measures that can be undertaken to harden your environment to prevent a Petya outbreak. Backups, Backups, Backups and Restore! With the current Ransomeware threats a working backup and even more important a … Continue reading

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Ewwww SCSI (EwSkuzzy @vulnhub)

Another Vulnhub VM: EwSkuzzy form @vortexau So last evening I decided its time for another Vulnhub. Luckily someone in #vulnhub was discussing EwSkuzzy! As the vulnhub.com description warned that it might be problematic in VMware I was glad that VMware Fusion imported … Continue reading

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BND Forensic Challenge – Cyber all the things

When the German Intelligence Service: Bundesnachrichtendienst (short BND) releases a hacking challenge as job application all bad media storm breaks lose: “Solve this challenge to become a spy” I did not care much for the RE challenge a couple of months … Continue reading

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vulnhub: flickII – to the root – walkthrough part2

This Post continues Part 1 of my flickII walkthrough! In the last post I showed how I was able to get a reverse shell using the flick-check-dist.apk and its API. In this post I will conclude the walkthrough by demonstrating how … Continue reading

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vulnhub: flickII – a different approach – walkthrough part1

Hey, Another vulnhub walkthrough, however this time a special one for me, because it required new special knowledge I just acquired. Flick II on vulnhub: https://www.vulnhub.com/entry/flick-2,122/ Introduction to FlickII I first grabbed FlickII when it was fresh in August 2015. I loved … Continue reading

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2016 SANS Holiday Hack Challenge Writeup (Walkthrough)

Its my favorite time of the year again: SANS Holiday Hack Challenge Time: https://holidayhackchallenge.com/2016/ So lets start with the Writeup: Part 1: A Most Curious Business Card Oh noes! Santa got kidnapped! But he lost his business card:   But … Continue reading

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Johnny – I hack Stuff – Cash?!

                On A Monday I bought myself a modem (Uh Huh) On A Tuesday I scanned the worldwide web (Oh Boy) On A Wednesday my wordlist was cre-ated On A Thursday Hydra said … Continue reading

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2015 SANS Holiday Hack Challenge Writeup (Walkthrough)

This year I learned of the SANS Holiday Hack Challenge for the first time and i’m glad i did! It was a totally awesome experience and must have been really time consuming to create. I especially liked it because the … Continue reading

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vulnhub: sickos 1.1 walkthrough

I just spotted a vm on Vulnhub that promised to be like OSCP. So i had to grab it: https://www.vulnhub.com/entry/sickos-11,132/ It was quite easy but still a lot of fun! As I managed to root it in roughly 45 minutes and the exploitation … Continue reading

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vulnhub.com writeup: Darknet

Hello, This is my writeup of the Darknet boot2root VM from vulnhub.com. I enjoyed Darknet as it was a VM focused on Linux System configuration and WebApp flaws. Lately there have been a lot of application exploitation and reverse engineering challenges … Continue reading

Posted in boot2root, InfoSec, miscellaneous, vulnhub | 1 Comment