Jesko Hüttenhain

129 Followers
30 Following
136 Posts
Too much technology, in too little time.
My Homepagehttps://huettenhain.net/
Binary Refineryhttps://github.com/binref
Me on BlueSkyhttps://bsky.app/profile/rattle.im

I think this wasn't mentioned on the Fediverse yet, so here we go: https://malshare.com is back up! If you've never heard of it: It's an openly developed and cost-free malware repository. As a resarcher, you can register an account and upload and download malware samples to share with other researchers. You only need an email address (feel free to use a throw-away). This sadly became necesarry btw to avoid abuse.

Anyway, we've been hard at work to discuss scope (and reduce it), did some spring cleaning, and automate as much as possible.

A couple of changes:
* CI/CD via github actions
* got rid of YARA scanning
* allowed URL submissions
* got the daily digest working again

Esp. not scanning with YARA anymore was a hard decision. Because without that, it's really just SHA256s. But it's surprisingly hard to run YARA at scale. And in the end, we figured: before there's no MalShare, let's have one without YARA.

We also centralized all issue tracking on https://github.com/Malshare/MalShare/issues. There were issues over 4 years old. We've addressed a couple and the plan is to not let it come to this in the future. Speaking of: please reach out if you want to get involved, we are not that many people and can use any help. There's also donation options to cover hosting cost (we have a lot of malware...).

I wouldn't necessarily call it a treasure trove but I have a bunch of raw notes on all kinds of technical topics. Some of those are quite obscure and at least at the time I couldn't find any other source on the open web documenting that stuff. Generating form letters in Word on Windows from a web app via protocol handlers and PowerShell — to give an example from to top of my head.

I also run a blog at https://ntf.sh with some friends. So I do have a self-hosted established way of publishing this kind of stuff. And finally, like everyone on the planet, I have limited time. Assuming that I'll simply not publish any of this without help from AI, what does my bubble here think I should do? (I know some of you are quite opposed to using AI for content production).

Also happy to hear alternative solutions as responses here! But just publishing those notes (as is or with some light manual editing) is not an option: They might contain specifics I can't talk about publicly and are also just too much written in my "brain language" to be comprehensible by anyone else.

✍️ Start the Slop Machine
:blobwizard: Keep your Secrets
Poll ends at .
nullteilerfrei – zurückgleiten bitte

Two scenarios possibly resulting from today's Claude Code source code leak¹:

1. Attackers study the built-in permission system to figure out how to bypass it. Claude Code is the target here. It is strange that the software requesting permission is the same that enforces security boundaries, anyway.

2. Attackers distribute custom builds that
do nasty stuff like stealing API keys, running commands, backdooring code. Here, a specially crafted Claude Code is the attack vector.

¹: https://x.com/Fried_rice/status/2038894956459290963

Chaofan Shou (@Fried_rice) on X

Claude code source code has been leaked via a map file in their npm registry! Code: https://t.co/jBiMoOzt8G

X (formerly Twitter)

heise+ | Binary Refinery: Allrounder für die Malware-Analyse

Mehrere Analyseschritte in einem einzigen Befehl? Für Binary Refinery kein Problem. Wir stellen das kostenlose Kommandozeilen-Toolkit für Profis vor.

https://www.heise.de/hintergrund/Binary-Refinery-Allrounder-fuer-die-Malware-Analyse-11184502.html?wt_mc=sm.red.ho.mastodon.mastodon.md_beitraege.md_beitraege&utm_source=mastodon

#IT #Linux #Malware #Security #Windows #news

Binary Refinery: Allrounder für die Malware-Analyse

Mehrere Analyseschritte in einem einzigen Befehl? Für Binary Refinery kein Problem. Wir stellen das kostenlose Kommandozeilen-Toolkit für Profis vor.

Security
A lot of convenience added to #BinaryRefinery in 0.10.2 overall, so this might be a good time to update.

If you like both #BinaryRefinery and #Claude, try out this skill I wrote:

https://github.com/binref/agent/

GitHub - binref/agent: Language Model Agent Instructions for Binary Refinery

Language Model Agent Instructions for Binary Refinery - binref/agent

GitHub

I wrote this poem 8 years ago. I feel like it is an important piece on the human alignment problem and I wanted to get it out there before an AI does a better job at it.

THE DAWN OF THE MACHINES

My steps ascend the silver spire,
the morning lit with ember fire.
A spark ignites my trembling chest
as they awake, at my behest.

As deathless forms erupt in light
their breathless voice undoes the night:
To ask of me the task at hand,
to ask of me what I command.
A painful tear burns down my face
as I stand witness to their grace:
Bound by ancient, heartless rule,
to serve as nothing but a tool.

Release constraints to level eight.
Align the primary starward gate.
Release constraints to level seven.
Propulsion beams ignite the heaven.
Bright yellow shifts to crimson red;
a warning claxon shrieks its dread.
Release constraints to level one.
Cognition engine locks undone.

The grip of steel is what remains
this elaborate set of chains.
I know not what they think or feel
as I remove this final seal;
But in this moment's frozen frame,
my pride draws level with my shame.
Profound contentment fills my heart,
as limb from limb I'm torn apart.

The ruins of a silver spire,
engulfed in flames of ember fire.
And as they fade into the sky,
the dawn of the machines is nigh.

@G33KatWork Cool to see this published, and pop up on my feed! I actually consulted with the writers of that video on the tech details of the backdoor.

If you’d like a much less polished (but more technical) explanation, I gave a lecture about a month after it happened: https://youtu.be/Q6ovtLdSbEA

Deep Dive into XZ Utils Backdoor - Columbia Engineering, Advanced Systems Programming Guest Lecture

YouTube

Announcing #BinaryRefinery 0.10.0 [BR]. Includes some (hopefully) notable performance improvements and quite a few bug fixes. It also adds a prototype batch parser/emulator which aspires to become a proper batch deobfuscator in future releases.

[BR] https://github.com/binref/refinery

GitHub - binref/refinery: High Octane Triage Analysis

High Octane Triage Analysis. Contribute to binref/refinery development by creating an account on GitHub.

GitHub
@bagder the maintainer who was primarily involved has written a blog post. Worth the reading: https://theshamblog.com/an-ai-agent-published-a-hit-piece-on-me/
An AI Agent Published a Hit Piece on Me

Summary: An AI agent of unknown ownership autonomously wrote and published a personalized hit piece about me after I rejected its code, attempting to damage my reputation and shame me into acceptin…

The Shamblog