Shielding you from security vulnerabilities!
Joined July 2019
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Ragnar Security retweeted
But we could never forget about those Binary Exploitation buffs! In fact we've got something fun for you: @RagnarSecurity 's latest predicament: "So Much Cache!" Pwn this challenge and more at #NahamCon2024 CTF jh.live/nahamcon-ctf (5/23-5/25)
Ragnar Security retweeted
Leveraging Netsh Helper DLLs for living-off-the-land code execution (and optional persistence), staged with shellcode for a Sliver C2 session! Showcases built with both C++ and Nim... and boy I love getting practice with Nim 👑 youtu.be/lMihdys4jw8
WittsEnd2 created a new article about one of the CTF challenges he wrote. It is a basic code injection challenge using ptrace!
ragnarsecurity.medium.com/li…
Ragnar Security retweeted
It's that magical time of year again - UMDCTF 2022!!!
Starting March 4th check out some incredible challs from the folks at UMDCSEC!
Visit umdctf.io for more details <3
WittsEnd2 wrote an article comparing vulnerabilities in Rust and C. Go check it out! ragnarsecurity.medium.com/ru…
Ragnar Security retweeted
How to make money and be successful in #infosec and #bugbounty without any knowledge and skills of hacking, coding.
#bugbountytips #bugbountytip
A thread.
🧵👇
Ragnar Security retweeted
Something to finish off 2021 with a bang for you: It's now possible to build a (mostly safe) #EMFI tool for ~$50. Details are in the new 'PicoEMP' repository, including gerbers + design decision notes. Inspired from my @hackaday remoticon talk! github.com/newaetech/chipsho…
Ragnar Security retweeted
ShmooCon 2022 postponed to March 24-26. More information here: shmoocon.org/2021/12/30/shmo…
WittsEnd2 is writing a series about developing baremetal firmware. He just completed his first article. You can read it here: ragnarsecurity.medium.com/wr…
Ragnar Security retweeted
I completed the Kerberoasting on an Open Fire challenge! holidayhackchallenge.com Don't miss out on SANS #HolidayHack x @KringleCon holidayhackchallenge.com
Interesting writeups from @cor_ctf challenge writers Will's Root and D3v17 on their challenges Fire of Salvation and Wall of Perdition (Linux Kernel Pwn CTF Challenges):
willsroot.io/2021/08/corctf-…
syst3mfailure.io/wall-of-per…
Ever wanted to know how the kernel security feature Seccomp works? WittsEnd2 will teach you and go through a CTF challenge involving Seccomp!
link.medium.com/LDKEzneI5ib
Interesting writeup from the Hack-A-Sat 2 Qualifiers CTF. This writeup is for the challenge Mars or Bust, which is an embedded reverse engineering challenge:
gist.github.com/ZetaTwo/d437…
WittsEnd2 just posted part 3 of his reverse engineering bare-metal tutorial series. This tutorial goes into reading ARM assembly code and exploiting bare-metal firmware vulnerabilities.
ragnarsecurity.medium.com/re…
WittsEnd2 just posted Part 2 of his Bare-Metal Firmware Reverse Engineering series: ragnarsecurity.medium.com/re…
WittsEnd2 just published a new article related to reverse engineering bare-metal kernel images using QEMU. Click here to read: link.medium.com/uZWZOnQkpfb
New reverse engineering CTF Challenge walkthrough from WittsEnd2 - Babymix from Dicegang ctf: youtube.com/watch?v=uJQoQrd6…
Ragnar Security retweeted
The attackers behind Solorigate detached the execution of the 2nd-stage payload, a custom Cobalt Strike loader, from the compromised binary’s process by creating an IFEO Debugger registry value for dllhost.exe and waiting for it run. ICYMI, our analysis: msft.it/6013psLtW
WittsEnd2 created a blog post about why you should start learning Reverse Engineering:
ragnarsecurity.medium.com/wh…