fsharp @fsharp123
Cybersecurity hobbyist @DeadSecCTF, @malta_ctf and @ctfminions. Mainly interested in reverse engineering and forensics. Joined November 2022-
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I played bi0sCTF 2025 with @DeadSecCTF and got first blood🩸on one of the reverse engineering challenges! This was really fun and I made a writeup on it: hackmd.io/@fsharp/rkD0QG… Thanks to @teambi0s for the cool challenges!
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A week ago, I played IrisCTF 2025 with @DeadSecCTF and solved the hardest reverse engineering challenge (7 solves out of 1064 teams). It really tested my WASM reversing skills! This is my writeup on it: hackmd.io/@fsharp/Hk1cfC… Many thanks to @IrisCTF for hosting a great CTF!
Got through the first half of #flareon11 yesterday, and now I'm stuck trying to understand the goal behind level 6. I think I know what should happen if I did 'the right thing,' but currently I don't see how to figure that out. Is it okay if I asked the author for clarification?
In UIUCTF 2024, I got second blood on a reverse engineering challenge ('tooooo fancy') that was solved by only 6 teams out of 958. It was very interesting and I made a writeup on it: hackmd.io/@fsharp/ryuOxo… Thanks to @sigpwny for hosting a fun CTF and congrats to the winners!
I played @Bugcrowd's CTF alone and placed 4th out of 325 teams! The challenges were interesting and some of them were quite tough, especially the ones in the web and OSINT categories. Congrats to the winners and thanks for the fun CTF!
Has anyone solved flake from #flareon10 the way I did? To bypass the snake length check, I patched the hardcoded high score to a low number. I then bypassed the constants object CRC check during runtime and played the game normally. No need to mess with the config file.
After 27 days, 5 hours and 38 minutes, I've cleared #flareon10. My favourite challenges are FlareSay, kupo and over_the_rainbow. Looking forward to next year's Flare-On CTF!
0x1622 @0x1622
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243 Followers 311 Following DFIR and CTI enthusiast | Opinions are my own and not the views of my employer.Trends for United States
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