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Hack.lu 2015: Creative Cheating

Write-up of Hack.lu 2015’s Creative Cheating challenge. The first challenge I solved on Hack.lu 2015, hosted by FluxFingers, was Creative Cheating. The challenge Mr. Miller suspects that some of his students are cheating in an automated computer test. He captured some traffic between crypto nerds Alice and Bob. It looks mostly like garbage but maybe […]

in websec | Comment

V – For Victor

In celebration of the birth of my godson Victor in July 2014, I composed a small piece for piano. Click the image above to download the sheet music, and listen to a somewhat messy recording below.

in Music | Comment

How to set up a Wifi captive portal

This post describes how an attacker can set up a fake Wifi network and prompt a login screen on the user’s device when a victim tries to connect. Goals The objective of this Wifi captive portal is to mimic the behaviour of a legitimate access point protected by a portal login page for demonstrational purposes. […]

in websec | Comment

Grab password with XSS

Automatic completion of passwords in web forms allows attackers to grab your password if an XSS vulnerability exists. We don’t usually associate XSS vulnerabilities with compromised passwords, but it is sometimes possible to steal login credentials through XSS vulnerabilities on a website. Take a look at the example attack below.

in websec | Comment

HTTP Auth Phishing

HTTP Auth offers attackers easy phishing. This post describes how it is done and how the attacker could circumvent the constant reappearing of the authentication prompt.

in websec | Comment

“I Love Her So”, Arranged for trombone quartet.

Excerpt from I Love Her So

As a present to my girlfriend who’s studying abroad for 5 months, I decided to write an arrangement of Ray Charles’ “I Love Her So” for trombone quartet.

The sheet music is available here and a recording can be found on SoundCloud or below.

in Music | 1 Webmention | 5 Comments

Ik Weet Het Niet

Omdat ik wel eens kan lachen met het lied “Mystery” van Hugh Laurie, besloot ik een eigen Nederlandstalige versie te maken. Dat klinkt als volgt. Ik Weet Het Niet Ik weet het niet Heel mijn leven al weet ik het niet Waarom het nooit gelukt is, mijn cherie Jij en ik, mijn schat, ik weet […]

in Music, Words | Comment

Ubuntu Playing No Sound and Speeded Video

Having trouble with audio and video playing too speedy in Ubuntu after an upgrade? Here’s a very easy solution I finally found after much of needless deleting, reinstalling and replacing software packages. If your problem is the same as mine, meaning Youtube plays movies too fast and no sound can be heard, the problem are […]

in Computers | 1 Comment

“Sanomme”

It’s been a while since I wrote this music. It was 2008 when I first composed the piece for trombone and piano, while I later arranged it for trombone and full harmony band. I decided I wanted to put the music on this little blog for the world to see, use and share. So here […]

in Music | Comment

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