ElfMaster (@ryan_elfmaster) header
ElfMaster (@ryan_elfmaster) profile picture

Innovative thought leader, #phrack author, reversing, exploitation and kernel hacking. Shiva binary patching technology: https://nitter.cf/t.co/MYfyikAJu7

Seattle, WA
Joined March 2014
Photo by ElfMaster (@ryan_elfmaster)Photo by ElfMaster (@ryan_elfmaster)Photo by ElfMaster (@ryan_elfmaster)
Zines for @unpromptedconf have arrived on site! 🔥 #Phrack73
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ElfMaster retweeted
The Phrack 73 prophile of @halvarflake A must-read from one of the legends of vulnerability research. archives.phrack.org/dl/73/ha…
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ElfMaster retweeted
We are pleased to release tmp.0ut 5 Volume! Get your viruses, rootkits, strange ELFs, weird machines, tiny files, cool art, and phresh beats here!! tmpout.sh/5/
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ElfMaster retweeted
Slides for my invited talk at @IEEESSP #langsec: "Large Language Models for Software Autospecification" - langsec.org/spw26/slides/van… joint work with @shubhamdugare and @TarunSures41845 at @TechAtBloomberg This is the new thing to pay attention to for software defense.
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ElfMaster retweeted
Pleased to announce my upcoming advanced ELF hacking course. 2-day instructor led workshop by ElfMaster Workshop title: "The Art of ELF binary patching in Linux". Become a pro at ELF binary patching with Shiva and learn the fundamental principles necessary to build custom ELF interpreters, loaders, and linkers to solve some of the worlds hardest security problems today. Get the early bird special before April 13th. eventbrite.com/e/the-art-of-… #ReverseEngineering #BinaryPatching
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Happy birthday @phrack staff — signed by @thedarktangent. 40 years of hacker history.
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Cover art by @ryan_elfmaster’s son. So cool!
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ElfMaster retweeted
Going to @defcon?! We'll have 9500 print copies of Phrack, and Sunday @ noon @netspooky @richinseattle and @chompie will be on main stage! info.defcon.org/content/?id=…
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ElfMaster retweeted
PHRACK special edition HaRDCov3R (#71.5) to be released at REcon.cx (@reconmtl). 27th - 29th of June. Meet us at REcon. Contains one 0day article from the upcoming 72 release, +unpublished 71 article, +classics and the Intro by REcon's own Hugo Fortier ❤️
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Have you found some vulns, bypassed detection, or done some cool research the past year you haven't already blogged? Submit to @phrack! Deadline is June 15 for the 40th Anniversary Edition, we're printing 1000s of copies worldwide free at cons & online! Be a part of history!
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ElfMaster retweeted
Would you look at that, it's tmp.0ut Volume 4! Happy Friday, hope you enjoy this latest issue! tmpout.sh/4/
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The Sacred Elves with @TomMontalk on Bass Guitar. Releasing our latest mix "Jayden Atreyu": arcana-research.io/static/ja…
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Today @ESET released a paper on "Bootkitty" the first UEFI bootkit for Linux. We didn't even read the paper, we just liked the name and artwork
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Mark your calendars!! Our highly anticipated Off-By-One Conference is returning on the 📆 𝟖𝐭𝐡 𝐚𝐧𝐝 𝟗𝐭𝐡 𝐌𝐚𝐲 𝟐𝟎𝟐𝟓! Stay tuned for more updates on the CFP and venue! 🙌 #OBO2025 #SaveTheDate #OffensiveSecurity #SecurityConference #Singapore
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I guess I can officially say that I "modified" CPU / ISA ;-) HWASAN on RISC-V is finally possible! Subjectively, I perceive it as my little success to make the @risc_v ecosystem more secure. After 4 years of my, @martin_maas and the entire J-ext group hard work, RISC-V Pointer Masking (PM) extension for ISA is finally ratified! Moreover, in the meantime we were working with the @risc_v committee to include not only PM but also another extension which I helped co-design, Control Flow Integrity (#CFI), as part of the RVA23 profile as well as optional extensions in RVB23. CFI is also an optional ISA extension for RVM23 profile. You can read the official announcement of ratification of RVA23 profile here: riscv.org/announcements/2024… Official RISC-V Control Flow Integrity Extension is available here: github.com/riscv/riscv-cfi/r… Official RISC-V Pointer Masking extension is available here: github.com/riscv/riscv-j-ext… Nevertheless, it doesn't stop here! Memory Tagging extension is in progress and hopefully more...
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ElfMaster retweeted
Proud to be part of the team of this new conference! Going to be awesome ☺️
I’m SO stoked to finally announce @DistrictCon - a new DC hacker conference, bringing together hackers across industries to do cool sh*t 🎉🪩 (Feb 21-22,2025) DistrictCon.org/get-notified
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NEW POD: We discuss the notion of "friendlies" in tracking nation-state APTs @juanandres_gs @craiu Listen: securityconversations.com/ep…
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ElfMaster retweeted
Here’s a blog post covering all the technical details behind a strcpy bug I found in the Tony Hawk video game series that can be used to hack several gaming consoles and even get RCE on the over the network icode4.coffee/?p=954
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