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

Video Contrastive Learning with Global Context

Video Contrastive Learning with Global Context (VCLR) This is the official PyTorch implementation of our VCLR paper. Install dependencies environments

143 Dec 26, 2022

Graph Convolutional Neural Networks with Data-driven Graph Filter (GCNN-DDGF)

Graph Convolutional Gated Recurrent Neural Network (GCGRNN) Improved from Graph Convolutional Neural Networks with Data-driven Graph Filter (GCNN-DDGF

21 Dec 18, 2022

Code for STFT Transformer used in BirdCLEF 2021 competition.

STFT_Transformer Code for STFT Transformer used in BirdCLEF 2021 competition. The STFT Transformer is a new way to use Transformers similar to Vision

69 Sep 29, 2022

Implementation of SegNet: A Deep Convolutional Encoder-Decoder Architecture for Semantic Pixel-Wise Labelling

Caffe SegNet This is a modified version of Caffe which supports the SegNet architecture As described in SegNet: A Deep Convolutional Encoder-Decoder A

1.1k Jan 02, 2023

An original implementation of "Noisy Channel Language Model Prompting for Few-Shot Text Classification"

Channel LM Prompting (and beyond) This includes an original implementation of Sewon Min, Mike Lewis, Hannaneh Hajishirzi, Luke Zettlemoyer. "Noisy Cha

92 Jan 07, 2023

Python implementation of the multistate Bennett acceptance ratio (MBAR)

pymbar Python implementation of the multistate Bennett acceptance ratio (MBAR) method for estimating expectations and free energy differences from equ

169 Dec 02, 2022

License Plate Detection Application

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4 Oct 10, 2022

UMich 500-Level Mobile Robotics Course

MOBILE ROBOTICS: METHODS & ALGORITHMS - WINTER 2022 University of Michigan - NA 568/EECS 568/ROB 530 For slides, lecture notes, and example codes, see

393 Dec 29, 2022

"Projelerle Yapay Zeka Ve Bilgisayarlı Görü" Kitabımın projeleri

"Projelerle Yapay Zeka Ve Bilgisayarlı Görü" Kitabımın projeleri Bu Github Reposundaki tüm projeler; kaleme almış olduğum "Projelerle Yapay Zekâ ve Bi

4 Aug 03, 2022

Some experiments with tennis player aging curves using Hilbert space GPs in PyMC. Only experimental for now.

NOTE: This is still being developed! Setup notes This document uses Jeff Sackmann's tennis data. You can obtain it as follows: git clone https://githu

1 Jan 20, 2022

验证码识别深度学习 tensorflow 神经网络

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5 Apr 28, 2022

SEJE Pytorch implementation

SEJE is a prototype for the paper Learning Text-Image Joint Embedding for Efficient Cross-Modal Retrieval with Deep Feature Engineering. Contents Inst

0 Oct 21, 2021

Self-driving car env with PPO algorithm from stable baseline3

Self-driving car with RL stable baseline3 Most of the project develop from https://github.com/GerardMaggiolino/Gym-Medium-Post Please check it out! Th

7 Dec 22, 2022

Official implementation of DreamerPro: Reconstruction-Free Model-Based Reinforcement Learning with Prototypical Representations in TensorFlow 2

DreamerPro Official implementation of DreamerPro: Reconstruction-Free Model-Based Reinforcement Learning with Prototypical Representations in TensorFl

22 Nov 01, 2022

Export CenterPoint PonintPillars ONNX Model For TensorRT

CenterPoint-PonintPillars Pytroch model convert to ONNX and TensorRT Welcome to CenterPoint! This project is fork from tianweiy/CenterPoint. I impleme

149 Dec 13, 2022

Inverse Rendering for Complex Indoor Scenes: Shape, Spatially-Varying Lighting and SVBRDF From a Single Image

Inverse Rendering for Complex Indoor Scenes: Shape, Spatially-Varying Lighting and SVBRDF From a Single Image (Project page) Zhengqin Li, Mohammad Sha

209 Jan 05, 2023

Generic image compressor for machine learning. Pytorch code for our paper "Lossy compression for lossless prediction".

Lossy Compression for Lossless Prediction Using: Training: This repostiory contains our implementation of the paper: Lossy Compression for Lossless Pr

84 Jan 02, 2023

[NeurIPS 2020] Code for the paper "Balanced Meta-Softmax for Long-Tailed Visual Recognition"

Balanced Meta-Softmax Code for the paper Balanced Meta-Softmax for Long-Tailed Visual Recognition Jiawei Ren, Cunjun Yu, Shunan Sheng, Xiao Ma, Haiyu

65 Dec 21, 2022

pytorch, hand(object) detect ,yolo v5，手检测

YOLO V5 物体检测，包括手部检测。项目介绍手部检测手部检测示例如下：视频示例：项目配置作者开发环境： Python 3.7 PyTorch = 1.5.1 数据集手部检测数据集该项目数据集采用 TV-Hand 和 COCO-Hand (COCO-Hand-Big 部分) 进

11 Dec 20, 2022

[NeurIPS 2021] "Drawing Robust Scratch Tickets: Subnetworks with Inborn Robustness Are Found within Randomly Initialized Networks" by Yonggan Fu, Qixuan Yu, Yang Zhang, Shang Wu, Xu Ouyang, David Cox, Yingyan Lin

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12 Dec 11, 2022