YYogeshwar PeelaAug 23 · 7 min readBrunnerCTF 2026 : Activating Neurons WriteupSummary The challenge ships a single file, activating_neurons.py, defining a small nn.Module called BrunsvigerNet. The model has two linear layers, but forward() only runs the input through the first exploitnotes.hashnode.dev
YYogeshwar PeelaJul 12 · 4 min readBroncoCTF : Spot the difference WriteupChallenge We're given two files, file1.txt and file2.txt, each containing what looks like a long, random blob of letters, digits, and symbols — one character per line. At a glance the two files look iexploitnotes.hashnode.dev
YYogeshwar PeelaJul 12 · 2 min readBronoCTF : No Laughing MatterChallenge A single file, aha.txt, containing nothing but space-separated 8-letter "words" made up of only two characters: A and H. $ cat aha.txt AHHAAAHA AHHHAAHA AHHAHHHH AHHAHHHA AHHAAAHH AHHAHHHH A11Jexploitnotes.hashnode.dev
YYogeshwar PeelaJul 12 · 7 min readBroncoCTF : Atomic Substitution Theory WriteupChallenge We're given secret.txt, a single line of comma-separated tuples wrapped in what looks like braces and underscores: (4, 17), (2, 16), (2, 15), (4, 9), { , (3, 2, 1), (5, 3), _ , (2, 17), ... 11Aexploitnotes.hashnode.dev
YYogeshwar PeelaJul 12 · 4 min readBronoCTF : LEts a GO WriteupCategory: Forensics / Misc Difficulty: Easy Flag: bronco{3ve4yth1ng_1s_aw3s0me} Challenge We're given lego_bricks_challenge.zip, a 63 KB archive. $ zipinfo lego_bricks_challenge.zip Archive: lego_briexploitnotes.hashnode.dev
MMOHIT SINGH PAPOLAOct 5, 2025 · 1 min readCompressorOVERVIEW So we were given an instance so let’s start it and head to our attacker machine to nc into it Here we can see there is a choosing components functionality in which there is a function to create artifact in the form of zip Seeing this I th...blog.reapsec.com
66NdRAug 23, 2025 · 4 min read[Misc] [Hackropole] - À L'EnversSource et énoncé du CTF https://hackropole.fr/fr/challenges/misc/fcsc2022-misc-a-l-envers Write-up Solution 1 : création d'un canal de communication interactif avec le processus actif du conteneur Docker local via Netcat Script d'inversion de la cha...cybersec-handbook.hashnode.dev
TT-RektJun 26, 2023 · 10 min readGoogle CTF 2023 WriteupThis year's Google CTF, while traveling in Danang, I managed to solve 2 misc problems: npc and symatrix. Both seem like algorithm-flavored problems. Here are the writeups for them: npc Problem description A friend handed me this map and told me tha...thao.pw
MMohammad Emran HasanJul 18, 2015 · 1 min read(Re) start of bloggingIts been some time since I’ve last posted anything in my blog – it would happen that I’d feel like posting something in the blog but never actually write anything. Sometimes I’d log into WP Admin to write, but then I’d feel the pressure of upgrading ...phpfour.hashnode.dev
