Malware, Cats and Cryptography
@maldevcc
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cocomelonc's notes about maldev cryptography and math
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Malware, Cats and Cryptography
1.71K subscribers
Malware, Cats and Cryptography
Hack.lu 2025 1 talk + 1 workshop, thank you for invitation again! β™₯️
https://x.com/cocomelonckz/status/1945495533885288463
#conferences #trainings #research #malware #hacking #programming #book #purpleteam #maldev #cybercrime #apt
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Malware, Cats and Cryptography
https://pretalx.com/hack-lu-2025/talk/review/EEYYLLP7WPHBLHT7RFFJLEVUF8XMSYT9
Pretalx
Malware Development for Ethical Hackers (Windows, Linux, Android) Hack.lu 2025
Whether you are a Red Team or Blue Team specialist, learning the techniques
and tricks of malware development gives you the most complete picture of
advanced attacks. Also, due to the fact that most (classic) malwares are written
under Windows, as a rule…
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Malware, Cats and Cryptography
https://cocomelonc.github.io/malware/2025/07/16/malware-cryptography-43.html next one from my blog. Mars is one of those β€œlegendary but niche” block ciphers you only see in CTFs, #crypto #research, or when someone wants to confuse the hell out of an analyst

Thanks to ANY.RUN for API β™₯️!

twitter: https://x.com/cocomelonckz/status/1945737232788144305
#hacking #malware #maldev #cryptography #research #programming #purpleteam #book
cocomelonc
Malware and cryptography 43 - encrypt/decrypt payload via Mars cipher. Simple C example.
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Malware, Cats and Cryptography
https://cocomelonc.github.io/macos/2025/07/18/malware-mac-6.html next one from my blog. Everything works perfectly as expected =^..^=

But we have some caveats. Once we get to writing shellcode, we want to avoid any null-bytes. For this reason I will show you source code for this examples that does not contain any null-bytes in the next few blog posts.

twitter: https://x.com/cocomelonckz/status/1947148527546626306

#cybersecurity #hacking #malware #programming #apple #assembly #research #arm #m1 #maldev #shellcode #payload #redteam #blueteam #purpleteam
cocomelonc
MacOS hacking part 6: Assebmly intro on ARM(M1). Simple NASM (M1) examples
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Malware, Cats and Cryptography
https://cocomelonc.github.io/android/2025/07/30/malware-android-2.html next one from my blog. Thanks to ANY.RUN for API! β™₯️

This is a practical case for educational purposes only.

twitter: https://x.com/cocomelonckz/status/1950391133705544102

#cybersecurity #hacking #malware #android #maldev #research #telegram #apt #purpleteam #redteam #blueteam #book #cybercrime #rat #trojan
cocomelonc
Mobile malware development trick 2. Abuse Telegram Bot API: Contacts. Simple Android (Java/Kotlin) stealer example.
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Malware, Cats and Cryptography
https://cocomelonc.github.io/macos/2025/08/02/malware-mac-7.html next one from my blog. This code shows that ultra-minimal #linux #shellcode still works on #macOS Sonoma, which is both surprising and #educational.

Want the same for ARM64 M1/M2 shellcode? It will be in the next posts of this macOS hacking series.

twitter: https://x.com/cocomelonckz/status/1952222369050771695

#hacking #blackhat #purpleteam #research #macos #apple #malware #apt #cybercrime #book #redteam #blueteam #cybersecurity #programming
cocomelonc
MacOS hacking part 7: Minimal Linux-style shellcode on macOS (Intel). Simple NASM (Intel) and C examples
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Malware, Cats and Cryptography
Still grinding on the new book - this time with a different publisher, since the last one basically ghosted me. Asked them for almost two months to just create a GitHub repo, but apparently that was too much to handle. So yeah, switched gears. ❀️
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Malware, Cats and Cryptography
https://cocomelonc.github.io/macos/2025/08/10/malware-mac-8.html next one from my blog. no exploits here - just clean mechanics you can reuse in #redteam and #blueteam practice/ #exercises.

twitter: https://x.com/cocomelonckz/status/1954762366396105161

#cybersecurity #hacking #malware #macos #apple #programming #research #purpleteam #maldev #malwareanalysis #arm #intel
cocomelonc
MacOS hacking part 8: dlopen() code loading + finding target PIDs. Simple C (Intel, ARM) examples
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Malware, Cats and Cryptography
https://cocomelonc.github.io/malware/2025/08/11/malware-tricks-49.html next one from my blog. Interaction with the Azure cloud is recognized as legitimate behavior and this is the main problem! Pwn! =^..^=

twitter: https://x.com/cocomelonckz/status/1955512821422403742
any.run task: https://app.any.run/tasks/5ad3bf05-f2c3-48d0-8552-7a988b536ad8

Thanks to any.run for API! β™₯️

#hacking #malware #stealer #azure #microsoft #cybersecurity #purpleteam #research #apt #cybercrime #blackhat #maldev #apt
cocomelonc
Malware development trick 49: abusing Azure DevOps REST API for covert data channels. Simple C examples.
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Malware, Cats and Cryptography
https://www.youtube.com/watch?v=34h4Y9Kqpyk #conferences #archive #asc #research #hacking #leaks #darknet
YouTube
ASC2024 | Zhassulan Zhussupov
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Malware, Cats and Cryptography
#catstanbul #meow #cats
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Malware, Cats and Cryptography
https://cocomelonc.github.io/malware/2025/08/15/malware-tricks-50.html next one from my blog. tLab #technologies company recently discovered one of the first in #Kazakhstan in interesting #phishing campaign aimed at one of the clients.

twitter: https://x.com/cocomelonckz/status/1957321542322286805

Thanks tLab for the API! β™₯️

#hacking #research #malware #programming #purpleteam #maldev #cybercrime #apt #microsoft
cocomelonc
Malware development trick 50: phishing attack using a fake login page with Telegram exfiltration. Simple Javascript example.
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Malware, Cats and Cryptography
Watermelon from my wife's garden ❀️
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Malware, Cats and Cryptography
https://cocomelonc.github.io/macos/2025/08/19/malware-mac-9.html next post in my blog. I'll explore #arm #m1 in upcoming posts.
twitter: https://x.com/cocomelonckz/status/1958033531797406090
#cybersecurity #malware #apple #macosx #osx #shellcode #hacking #programming #research #injection #book #cybercrime #macbook #redteam #purpleteam #blueteam
cocomelonc
MacOS hacking part 9: shellcode injection via task_for_pid - thread hijacking. Simple C (Intel) example
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Malware, Cats and Cryptography
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I miss this country, my second home - Bahrain πŸ‡§πŸ‡­πŸ‡§πŸ‡­πŸ‡§πŸ‡­
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Malware, Cats and Cryptography
https://cocomelonc.github.io/macos/2025/08/24/malware-mac-10.html next one from my blog. instead of hijacking an existing thread, we’ll create an entirely new thread in the target process.

twitter: https://x.com/cocomelonckz/status/1959855281929691412

#malware #cybersecurity #hacking #purpleteam #maldev #cybercrime #asm #apple #macosx #threatintel #research #programming #book
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Malware, Cats and Cryptography
https://github.com/cocomelonc/mdmz_book/
Alhamdulillah, I am starting to translate my #book into Kazakh to develop the Kazakh-speaking #cybersec #community in Kazakhstan. I also want to support everyone who wants to make content in Kazakh about #technology
#hacking #programming #purpleteam #malware
GitHub
GitHub - cocomelonc/mdmz_book: The result of research and investigation of malware development tricks, techniques, evasion, cryptography…
The result of research and investigation of malware development tricks, techniques, evasion, cryptography and linux malware - cocomelonc/mdmz_book
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Malware, Cats and Cryptography
https://cocomelonc.github.io/malware/2025/08/28/malware-tricks-51.html djuma mubarak! next one from my blog. enjoy PoC stealer via another legit API. Thanks to ANY.RUN for API! β™₯️

twitter: https://x.com/cocomelonckz/status/1961283780779377114

#cybersecurity #malware #research #programming #hacking #purpleteam #redteam #blueteam #book #ethicalhacking #maldev #bitbucket #altassian #cybercrime
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Malware, Cats and Cryptography
https://cocomelonc.github.io/macos/2025/09/01/malware-mac-11.html next one from my blog.

straightforward bind shell for macOS on Apple Silicon. Clean, minimal, no libc. Pure syscall style.

twitter: https://x.com/cocomelonckz/status/1963094417138401712

#hacking #malware #purpleteam #redteam #blueteam #apple #macos #research #maldev #threatintel #cybersecurity #cybercrime #apt #book
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Malware, Cats and Cryptography
https://x.com/bsidesahmedabad/status/1935949286501474406

#cybersecurity #conference #research #hacking #apt #cybercrime
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Malware, Cats and Cryptography
https://cocomelonc.github.io/persistence/2025/09/14/malware-pers-28.html next one from my blog. works even with Windows Defender real-time protection enabled. enjoy!

twitter: https://x.com/cocomelonckz/status/1968223494044520587

#cybersecurity #malware #hacking #programming #research #persistence #maldev #blackhat #cybercrime #apt #book #redteam #blueteam #purpleteam #threatintel
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