UIUCTF WriteUp
Raymonds Recovery forensics challenge writeup from UIUCTF 2020. Continue reading UIUCTF WriteUp
Power Toys for Windows 10
Installation and Features Introduction Power Toys is a free utility provided by Microsoft for Windows 10 users without any customer support. This utility was once given for Windows 95 and Windows XP. But the Power Toys are back again for Windows 10 after many years. Installation Power Toys is not provided to Windows 10 users by default. So, we have to download it from the … Continue reading Power Toys for Windows 10
SEC-T CTF 2019 Forensics Challenge Writeup
1 . My Cat In this challenge, we are provided with a PDF file in “mycat.tar.xz” which shows the text as shown in the below image. There is nothing in the PDF except the above text. Then I used a tool called peepdf to analyse this given PDF. Then I loaded the given PDF into the peepdf tool as shown in the below image. Then … Continue reading SEC-T CTF 2019 Forensics Challenge Writeup
HackCon CTF 2019 Writeups
Stego Challenges 1. Small Icon much wow In this challenge we are provided with an image named stego.jpg which can be seen below. Now, I checked whether this image contains something embedded within using “binwalk” tool. The output is as follows. I found that there is another JPEG image inside the given image at the offset “202”. Then I extracted it using “foremost” tool and … Continue reading HackCon CTF 2019 Writeups
Redpwn CTF 2019 Writeup
Misc Category 1 .Tux Trivia Show This challenge is nice since I like python automation. This is a pretty programming challenge. In this challenge, when we run “nc chall.2019.redpwn.net 6001” we will be asked the capital of any country in the world or the capital of a state in the USA. We will have only less time to answer the question. If we answer wrong … Continue reading Redpwn CTF 2019 Writeup
ISITDTU-CTF Quals ’19 Write Ups
1. Do you know math? First of all, I thank my teammate Jaswanth (@_f4lc0n) for helping me in solving this challlenge. In this challenge we have to do netcat to the given IP address and the respective port. Then we will be displayed something as shown below. Then, we have to enter the answer to the question. But we have a time limit of just … Continue reading ISITDTU-CTF Quals ’19 Write Ups
Security Fest CTF ’19 Writeup
Misc Challenges 1. Signal In this challenge, we are given a PDF file whose screenshot is shown below. In this image, we can find the keyboard looks too strange. So, I thought , it might be a morse. Hence, I decoded it using an online morse code decoder. The Morse Code is: … – .-. .- -. –. . .-.-.- -.- . -.– -… — … Continue reading Security Fest CTF ’19 Writeup
Aero CTF Quals ’19 Writeup
1.Undefined Protocol In this challenge , we are given a packet capture file. It is also told that some kind of strange protocol is also used over TCP. So, I analysed all the TCP streams of the given packet capture. Each TCP stream in wireshark looks similar to the below pictures. By analysing all the streams, I found that the first line in the raw … Continue reading Aero CTF Quals ’19 Writeup
Ace Bear Security Contest ’19 Writeup
Miscellaneous 1. Welcome While trying to solve this challenge, initially I clicked the link named ‘Free Flag’ and searched in the redirected web page and also in the ‘facebook’ and ‘twitter’ pages of AceBear team whose links are present in the ‘Free Flag’ link. I tried a lot to find the flag in all those web pages but my attempt was futile. Then I casually … Continue reading Ace Bear Security Contest ’19 Writeup
Swamp CTF ’19 Writeup
Miscellaneous 1. Last Transmission In this challenge,we are given a PNG image which is shown below. When we use stegoveritas tool to analyse the image. We can find the flag in Blue plane 0 which is shown below. Hence , the flag is ‘flag{B34M_M3_UP_SC077Y}’. 2. NIT In this challenge, we are given with some kind of weird text as shown below. A7]^gF*(u(BkVO)1MV#U/oPWADf.4LBQ&)IE+j2TD.GLe2e4XS@q%-(3+b!&3+=g#AMcDXAMuMZ@:V/M2e4jY This is base85 … Continue reading Swamp CTF ’19 Writeup
Saran's Blog 