Return of the Penguin – BSides London 2016 [Part 1]

–[ Introduction ]

Hello all! It has been some time since my last post, so I thought I’d write about something fun that I came across!

Return of The Penguin is the first reversing challenge from B-Sides London 2016, brought to us by the creator of last year’s Toxic PDF. In this challenge we are given an unknown binary and a number of guiding questions to answer!

Penguins, can't trust them!
Penguins, can’t trust them!

Continue reading “Return of the Penguin – BSides London 2016 [Part 1]”

Return of the Penguin – BSides London 2016 [Part 1] #14 – JVM/.Net Assembly

-[ Introduction ]

This is a very quick post about a challenge I just solved and found interesting. It’s a Java “what’s this code doing?” type of challenge, and since I haven’t touched Java bytecode in a while I thought I’d give it a go!

The original challenge can be found here, and many many more can be found here!

Continue reading “ #14 – JVM/.Net Assembly” #14 – JVM/.Net Assembly

FLARE-ON Challenge – Part 3


Hello and welcome to Part 3 of the FLARE-ON challenges (here are parts 1 and 2 in case you need to catch up!) This challenge started with the following message:

Nice job, you’re really knocking these out! Here’s the next binary. The password to the zip archive is “malware” again.
Keep up the good work, and good luck!

By the way get used to this; the password will be ‘malware’ for the future zips. There’s nothing in this welcoming message that hints to what we should do for this level (like in the previous one for example), so off we go!

Continue reading “FLARE-ON Challenge – Part 3”

FLARE-ON Challenge – Part 3