here's to hoping everyone is enjoying the summer so far with temperatures not (yet) as extreme as June. Safe and enjoyable travel wishes go out to everyone who decided to leave Vienna over the summer (i can't blame you). So what's in store for this month? Well we have our first A/D CTF of the year!
2026-07-18: ENOWARS join us for some Attack/Defense CTF fun, meeting at 13:00 at SBA ideally, CTF starts at 14:00.
2026-07-25: D^3CTF for our dose of Chinese CTF. Unfortunately this one starts at 14:00 and runs for 24h. We won't go for the full 24h (allegedly), but maybe lets meet at SBA for lunch and then CTF?
2026-08-01: L3akCTF back to our usual time of 10:00 at SBA.
2026-08-03: Next monthly meetup monday, 18:30 at SBA
Some general reminders:
We have all our events in a calendar, check it out at, you can also get a subscription link.
We typically follow low LLM policies at CTFs (using LLMs as glorified search engines at best)
SBA is at Floragasse 7, 5th Floor, 1040 Wien, all meeting times in current Vienna timezone
Where: @SBA Research (Floragasse 7, 1040 Wien, 5th Floor) When: Monday, 05.08.2018, 18:30 (CEST) What: Plans for upcoming CTFs Reviewing challenges of past CTFs $YOUR_TOPIC_HERE$ and of course Socializing ;)...
This time we don't have anything planned in particular, but if you're curious about CTFs you can just come and hang out with us. We might work on some OverTheWire Advent Calendar challenges as well. Where: @FH4, TU Wien (Wiedner Hauptstraße 8-10, 1040 Wien, Yellow Area) When: Thursday, 06.12.2018, 18:30 (CET) What: Nothing planned in particular Casual CTF discussion/challenge solving...
With this meetup we'll give another angr introduction, presenting the tutorial here. This introduction makes it a lot easier to solve the ragequit lab challenge and we will also be answering questions about said challenge. Where: @FH4, TU Wien (Wiedner Hauptstraße 8-10, 1040 Wien, Yellow Area) When: Thursday, 29.11.2018, 18:30 (CET) What: angr Introduction Q&A and Hints about the Lab Challenge...
Back on track after RuCTF, and we'll start with an overview of the AVR architecture, which is relevant for the current lab exercise of Advanced Internet Security. We'll also show how the gnuradio challenge can be solved without actually using gnuradio and afterwards we're gonna pick one CTF challenge and work on it. Where: @FH4, TU Wien (Wiedner Hauptstraße 8-10, 1040 Wien, Yellow Area) When: Thursday, 15.11.2018, 18:30 (CET) What: AVR Architecture Overview Working on the signal.dump without gnuradio Reviewing/Working on...
Today we'll be giving a walkthrough of the first lab challenge of Advanced Internet Security, botnet-takedown, and we're gonna talk about the (Russian) elephant in the room: RuCTF. The CTF will happen on Saturday and we'll meet up at 10:00 CET, let us know if you want to join in. Where: @FH4, TU Wien (Wiedner Hauptstraße 8-10, 1040 Wien, Yellow Area) When: Thursday, 08.11.2018, 18:30 (CET) What: botnet-takedown Walkthrough RuCTF: Gameplay and Infrastructure...
Because we decided on the meetup date on relatively short notice, we'll give an overview of the tools we regularly use. If requested, we can go into detail into certain topics. Where: @FH4, TU Wien (Wiedner Hauptstraße 8-10, 1040 Wien, Yellow Area) When: Thursday, 18.10.2018, 18:30 (CEST) What: Tooling overview...
We've been collaborating with LosFuzzys (https://hack.more.systems) for Google CTF and managed to solve a few challenges. This meetup, we'll go over some of those challenges. Where: @EI3A, TU Wien (Gußhausstraße 25, 1040 Wien, 2nd Floor) When: Thursday, 28.06.2018, 17:30 (CEST) What: Google CTF Recap...
Wargames by the OverTheWire Community (http://overthewire.org/wargames/) are a set of challenges to practice basic security concepts. Where: @EI3A, TU Wien (Gußhausstraße 25, 1040 Wien, 2nd Floor) When: Thursday, 21.06.2018, 17:30 (CEST) What: Wargames...