Writeups for the challenges from DownUnderCTF 2021

Last update: Dec 31, 2022

Related tags

Deep Learning Challenges_2021_Public

Overview

cloud

Challenge	Author	Difficulty	Release Round
Bad Bucket	Blue Alder	easy	round 1
Not as Bad Bucket	Blue Alder	easy	round 1
Lost n Found	Blue Alder	medium	round 1
Whale Blog	Blue Alder	medium	round 2

crypto

Challenge	Author	Difficulty	Release Round
Substitution Cipher I	joseph#8210	beginner	round 1
Break Me!	2keebs	easy	round 1
OTWhat 1	nullableVoid*#7225	easy	round 2
Substitution Cipher II	joseph#8210	easy	round 1
treasure	joseph#8210	easy	round 1
OTWhat 2	nullableVoid*#7225	medium	round 2
Secuchat	nullableVoid*#7225	medium	round 1
1337crypt v2	joseph#8210	hard	round 2
power sign	joseph#8210	hard	round 1
Substitution Cipher III	joseph#8210	hard	round 1
yadlp	joseph#8210	hard	round 1

forensics

Challenge	Author	Difficulty	Release Round
Retro!	QUTWH	beginner	round 1
Do the loop!	QUTWH	easy	round 1
How to pronounce GIF	[email protected]	easy	round 1
That's Not My Name	Conletz#5420	easy	round 1
The File is Lava	TheDon*#2152	medium	round 2
Want to Play a Game?	Conletz#5420	medium	round 1

misc

Challenge	Author	Difficulty	Release Round
Discord	Crem	none	round 1
Twitter	Crem	none	round 1
Builder	BearArms (Cybears)	beginner	round 1
General Skills Quiz	Crem	beginner	round 1
The Introduction	Crem	beginner	round 1
Floormat	todo#7331	easy	round 1
GammaSafe	nullableVoid*#7225	easy	round 2
rabbit	Crem + z3kxTa	easy	round 1
Canary	247CTF.com	medium	round 1
i-pee fs	dot	medium	round 2
Flying Spaghetti Monster	hypersphere (Cybears)	hard	round 1

survey

Challenge	Author	Difficulty	Release Round
Survey	DUCTF	none	round 3

OSINT

Challenge	Author	Difficulty	Release Round
Who goes there?	[email protected]	beginner	round 1
(back) On the rails	[email protected]	easy	round 2
Get over it!	QUTWH	easy	round 1
The Internet is Written in Ink	Crem	easy	round 1
Apartment Views	[email protected]	medium	round 2
eyespy	[email protected]	medium	round 2
Heart of the nation	[email protected]	medium	round 1
Sharing is Caring	[email protected]	hard	round 2

pwn

Challenge	Author	Difficulty	Release Round
deadcode	[email protected]	beginner	round 1
Leaking like a sieve	[email protected]	beginner	round 1
babygame	grub	easy	round 1
outBackdoor	[email protected]	easy	round 1
write what where	joseph#8210	easy	round 2
Oversight	B3NNY	medium	round 1
ready, bounce, pwn!	joseph#8210	medium	round 2
DUCTFnote	grub	hard	round 1
encrypted note	joseph#8210	hard	round 1

reversing

Challenge	Author	Difficulty	Release Round
no strings	joseph#8210	beginner	round 1
flag loader	joseph#8210	easy	round 1
Juniperus	nullableVoid*#7225	easy	round 2
bullet hell	joseph#8210	medium	round 2
connect the dots	joseph#8210	medium	round 1
flag printer	joseph#8210	medium	round 1
gamer	joseph#8210	medium	round 1
flag checker	joseph#8210	hard	round 1

web

Challenge	Author	Difficulty	Release Round
Cowboy World	Crem	beginner	round 1
Inside Out	Solopie	beginner	round 1
Chainreaction	n00bmaster	easy	round 1
Farsight	todo#7331	easy	round 2
Secret Bin	todo#7331	easy	round 2
Ezmail	todo#7331	medium	round 1
JWT	247CTF.com	medium	round 1
x1337 Sk1d R3p0rt3r	xesh	medium	round 2
Zap	todo#7331	medium	round 1
Jasons Proxy	xesh	hard	round 2
Notepad	todo#7331	hard	round 1

Owner

DownUnderCTF

DownUnderCTF

DownUnderCTF

GitHub Repository https://downunderctf.com

Arxiv harvester - Poor man's simple harvester for arXiv resources

Poor man's simple harvester for arXiv resources This modest Python script takes

5 Oct 18, 2022

Official code for Next Check-ins Prediction via History and Friendship on Location-Based Social Networks (MDM 2018)

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3 Oct 09, 2022

City Surfaces: City-scale Semantic Segmentation of Sidewalk Surfaces

City Surfaces: City-scale Semantic Segmentation of Sidewalk Surfaces Paper Temporary GitHub page for City Surfaces paper. More soon! While designing s

14 Nov 10, 2022

Yolov5-opencv-cpp-python - Example of using ultralytics YOLO V5 with OpenCV 4.5.4, C++ and Python

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183 Jan 09, 2023

PyTorch - Python + Nim

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425 Dec 22, 2022

A Pytorch implementation of CVPR 2021 paper "RSG: A Simple but Effective Module for Learning Imbalanced Datasets"

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120 Dec 12, 2022

SplineConv implementation for Paddle.

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3 Dec 29, 2021

Learning Chinese Character style with conditional GAN

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2.2k Jan 02, 2023

Source code for our Paper "Learning in High-Dimensional Feature Spaces Using ANOVA-Based Matrix-Vector Multiplication"

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1 Aug 10, 2022

Ansible Automation Example: JSNAPY PRE/POST Upgrade Validation

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Modeling CNN layers activity with Gaussian mixture model

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3 Aug 05, 2022

🛠️ SLAMcore SLAM Utilities

slamcore_utils Description This repo contains the slamcore-setup-dataset script. It can be used for installing a sample dataset for offline testing an

7 Aug 04, 2022

A vision library for performing sliced inference on large images/small objects

SAHI: Slicing Aided Hyper Inference A vision library for performing sliced inference on large images/small objects Overview Object detection and insta

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7 Nov 02, 2022

(IEEE TIP 2021) Regularized Densely-connected Pyramid Network for Salient Instance Segmentation

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41 Oct 21, 2022

Automatic voice-synthetised summaries of latest research papers on arXiv

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124 Dec 20, 2022

The fastest way to visualize GradCAM with your Keras models.

VizGradCAM VizGradCam is the fastest way to visualize GradCAM in Keras models. GradCAM helps with providing visual explainability of trained models an

58 Nov 19, 2022

Learning Spatio-Temporal Transformer for Visual Tracking

STARK The official implementation of the paper Learning Spatio-Temporal Transformer for Visual Tracking Hiring research interns for visual transformer

484 Dec 29, 2022

Code for a seq2seq architecture with Bahdanau attention designed to map stereotactic EEG data from human brains to spectrograms, using the PyTorch Lightning.

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15 Nov 11, 2022

机器学习、深度学习、自然语言处理等人工智能基础知识总结。

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445 Dec 12, 2022