Writeups for the challenges from DownUnderCTF 2021

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

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

Patrice Lopez 5 Oct 18, 2022
Official code for Next Check-ins Prediction via History and Friendship on Location-Based Social Networks (MDM 2018)

MUC Next Check-ins Prediction via History and Friendship on Location-Based Social Networks (MDM 2018) Performance Details for Accuracy: | Dataset

Yijun Su 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

yolov5-opencv-cpp-python Example of performing inference with ultralytics YOLO V

183 Jan 09, 2023
PyTorch - Python + Nim

Master Release Pytorch - Py + Nim A Nim frontend for pytorch, aiming to be mostly auto-generated and internally using ATen. Because Nim compiles to C+

Giovanni Petrantoni 425 Dec 22, 2022
A Pytorch implementation of CVPR 2021 paper "RSG: A Simple but Effective Module for Learning Imbalanced Datasets"

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

120 Dec 12, 2022
SplineConv implementation for Paddle.

SplineConv implementation for Paddle This module implements the SplineConv operators from Matthias Fey, Jan Eric Lenssen, Frank Weichert, Heinrich Mül

北海若 3 Dec 29, 2021
Learning Chinese Character style with conditional GAN

zi2zi: Master Chinese Calligraphy with Conditional Adversarial Networks Introduction Learning eastern asian language typefaces with GAN. zi2zi(字到字, me

Yuchen Tian 2.2k Jan 02, 2023
Source code for our Paper "Learning in High-Dimensional Feature Spaces Using ANOVA-Based Matrix-Vector Multiplication"

NFFT4ANOVA Source code for our Paper "Learning in High-Dimensional Feature Spaces Using ANOVA-Based Matrix-Vector Multiplication" This package uses th

Theresa Wagner 1 Aug 10, 2022
Ansible Automation Example: JSNAPY PRE/POST Upgrade Validation

Ansible Automation Example: JSNAPY PRE/POST Upgrade Validation Overview This example will show how to validate the status of our firewall before and a

Calvin Remsburg 1 Jan 07, 2022
Modeling CNN layers activity with Gaussian mixture model

GMM-CNN This code package implements the modeling of CNN layers activity with Gaussian mixture model and Inference Graphs visualization technique from

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

SLAMcore 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

Open Business Software Solutions 2.3k Jan 04, 2023
Patch-Diffusion Code (AAAI2022)

Patch-Diffusion This is an official PyTorch implementation of "Patch Diffusion: A General Module for Face Manipulation Detection" in AAAI2022. Require

H 7 Nov 02, 2022
(IEEE TIP 2021) Regularized Densely-connected Pyramid Network for Salient Instance Segmentation

RDPNet IEEE TIP 2021: Regularized Densely-connected Pyramid Network for Salient Instance Segmentation PyTorch training and testing code are available.

Yu-Huan Wu 41 Oct 21, 2022
Automatic voice-synthetised summaries of latest research papers on arXiv

PaperWhisperer PaperWhisperer is a Python application that keeps you up-to-date with research papers. How? It retrieves the latest articles from arXiv

Valerio Velardo 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

Multimedia Research 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.

stereoEEG2speech We provide code for a seq2seq architecture with Bahdanau attention designed to map stereotactic EEG data from human brains to spectro

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。

说明 机器学习、深度学习、自然语言处理基础知识总结。 目前主要参考李航老师的《统计学习方法》一书,也有一些内容例如XGBoost、聚类、深度学习相关内容、NLP相关内容等是书中未提及的。

Peter 445 Dec 12, 2022