Csaba Fitzl
@theevilbit.bsky.social
📤 794
📥 75
📝 29
macOS Security -- Trail running 🏃 -- Mountains ⛰ -- Tolkien fan
🍎 Thank you
@macsysadmin.bsky.social
for having me! It was a blast as always! I'm already waiting for 2026.
#msa2025
/photos by Jonas Jöreskog/
4 months ago
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reposted by
Csaba Fitzl
11 months ago
Did you see the news last week? 👀 Kandji announced Vulnerability Management to help IT and security teams identify, assess, prioritize, and remediate vulnerabilities on Mac devices - all through a unified workflow in a unified platform. Read more about it here:
buff.ly/432J9E6
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Vulnerability Management: First Unified Platform to Detect & Remediate on Mac
Kandji announces Kandji Vulnerability Management, which helps IT and security teams identify and remediate vulnerabilities through a unified workflow.
https://buff.ly/432J9E6
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reposted by
Csaba Fitzl
Armin Briegel
11 months ago
This week's news summary, we look briefly at the new phone before we look some beefy malware and vulnerabilities, some nice configuration profiles and updates.
macadmins.news/issues/349
#Mac
#MacAdmins
#Apple
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#349
new iPhone: it's a 16e
https://macadmins.news/issues/349
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🍎🪳My last blog post in the storagekitd - diskarbitrationd vulnerability series, which I presented at
#POC2024
and
@blackhatevents.bsky.social
#BHEU2024
as part of my "Apple Disk-O Party" talk, is up
@kandji.bsky.social
's site:
www.kandji.io/blog/macos-a...
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Uncovering Apple Vulnerabilities: diskarbitrationd and storagekitd Audit Part 3
Exploring CVE-2024-27848 & CVE-2024-44210: How macOS vulnerabilities in storagekitd allowed privilege escalation, how they were exploited & Apple’s patch.
https://www.kandji.io/blog/macos-audit-story-part3
11 months ago
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First Apple🍎 macOS 💻 vulnerability of 2025 is submitted. 🥳 Full access to your iCloud documents...
about 1 year ago
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Happy New Year! ❄️
about 1 year ago
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Year In Sport 2024. Wasn't that good due to my lingering plantar fasciitis issue. But that is life, sometimes there are low moments, and coming out of those will make you stronger. Hopefully things will get better next year. ⛰️🏃
about 1 year ago
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🏝️🥾🏃🌋I wrote about my hiking and trail running adventures in Maui, Hawaii, which I did right before
#OBTS
Enjoy!
trails.exposure.co/maui-hawaii-...
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Maui, Hawaii (ENG) by Csaba Fitzl on Exposure
HUNGARIAN / MAGYAR
https://trails.exposure.co/maui-hawaii-eng
about 1 year ago
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🍎🪳Second part of the diskarbitrationd - storagekitd vulnerability blog series is out on
@kandji.bsky.social
's blog. These vulnerabilities were presented at
@blackhatevents.bsky.social
#BHEU2024
and
#POC2024
conferences as part of my "Apple Disk-O Party" talk.
www.kandji.io/blog/macos-a...
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Uncovering Apple Vulnerabilities: diskarbitrationd and storagekitd Audit Part 2
Part 2 of the audit Kandji's Threat Research team performed on the macOS diskarbitrationd & storagekitd system daemons, uncovering several vulnerabilities.
https://www.kandji.io/blog/macos-audit-story-part2
about 1 year ago
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📣I’m happy to announce that I’m planning to write a brand new “macOS Vulnerability Research” training. 🥳 Considering the amount of work the writing requires it will be available late 2025 or early 2026. It will be Live class only, and likely only once or twice a year.
about 1 year ago
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☀️🏝️This is the day! Don’t miss it if you want to learn how to talk with launchd and how to generically detect XPC exploits. 🔥🔥🔥
#OBTS
add a skeleton here at some point
about 1 year ago
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reposted by
Csaba Fitzl
XPN
about 1 year ago
Good lineup of books!
www.humblebundle.com/books/hackin...
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Humble Tech Book Bundle: Hacking 2024 by No Starch
Level up your hacking and skills with this tech bundle from No Starch. Learn to protect yourself and others! Pay what you want & support charity!
https://www.humblebundle.com/books/hacking-2024-no-starch-books
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reposted by
Csaba Fitzl
Brandon Dalton
about 1 year ago
Extremely excited to be giving a talk titled "Mac, Wheres My Bootstrap" tomorrow at
#OBTS
with
@theevilbit.bsky.social
! Join us live on YouTube or in-person at 2:40pm HST / 7:40pm EST. We'll be dropping a tool you can walk away with :)
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We are doing again a community run tomorrow. We will meet at the lobby, at the “Aloha” sign at 8AM, and run about 5k north on the beach and then back.
#OBTS10k
#OBTS
about 1 year ago
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Entering last day of trainings with my colleagues from
@kandji.bsky.social
. There is always something new to learn in this field, and it’s great to learn directly from iOS experts
@naehrdine.bsky.social
and Sn0wfreeze
#OBTS
about 1 year ago
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reposted by
Csaba Fitzl
Phil Stokes ⫍🐠⫎
about 1 year ago
@sentinelone.com
is hiring -
#macOS
detection engineer.
www.sentinelone.com/jobs/?gh_jid...
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Careers at SentinelOne
Take a look at the open positions at SentinelOne. We're dedicated to defending enterprises across endpoints, containers, cloud workloads, and IoT devices in a single cybersecurity platform.
https://www.sentinelone.com/jobs/?gh_jid=6268424003
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A dream came true. My first ever Sea To Summit climb, here on Maui. Climbed the 3055m high Haleakala volcano’s highest summit, Red Hill, from the ocean over 30kms.
#OBTS
about 1 year ago
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reposted by
Csaba Fitzl
Phil Stokes ⫍🐠⫎
about 1 year ago
@vxundergroundre.bsky.social
has been kind enough to host Banshee Stealer's leaked source code here.
#macOS
#InfoStealer
#apple
#malware
github.com/vxundergroun...
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GitHub - vxunderground/MalwareSourceCode: Collection of malware source code for a variety of platforms in an array of different programming languages.
Collection of malware source code for a variety of platforms in an array of different programming languages. - vxunderground/MalwareSourceCode
https://github.com/vxunderground/MalwareSourceCode
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🥾🏃⛰️ It was long time ago I last wrote about my runs or hikes. Below is a post about the trails I explored when I was in South Korea for the POC2024 conference. Enjoy!
trails.exposure.co/on-the-trail...
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On the Trails of Seoul by Csaba Fitzl on Exposure
Trail running story from South Korea.
https://trails.exposure.co/on-the-trails-of-seoul
about 1 year ago
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reposted by
Csaba Fitzl
Phil Stokes ⫍🐠⫎
about 1 year ago
Been a while since we've seen
#macOS
#malware
abusing osacompile rather than plain osascript, but
#Amos
Atomic Stealer is nothing if not adaptable. SHA1: 51ef05c84eea3dde149a5dd3ea9916a824e95afc. A reminder that it's possible (didn't say easy 😅) to reverse compiled
#applescript
.
s1.ai/fadedead
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FADE DEAD | Adventures in Reversing Malicious Run-Only AppleScripts - SentinelLabs
We show how to statically reverse run-only AppleScripts for the first time, and in the process reveal new IoCs of a long-running macOS Cryptominer campaign.
https://s1.ai/fadedead
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reposted by
Csaba Fitzl
jiska
about 1 year ago
How does the new iOS inactivity reboot work? What does it protect from? I reverse engineered the kernel extension and the secure enclave processor, where this feature is implemented.
naehrdine.blogspot.com/2024/11/reve...
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Reverse Engineering iOS 18 Inactivity Reboot
Wireless and firmware hacking, PhD life, Technology
https://naehrdine.blogspot.com/2024/11/reverse-engineering-ios-18-inactivity.html
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reposted by
Csaba Fitzl
Gynvael Coldwind
about 1 year ago
Paged Out! #5 is out – enjoy!
pagedout.institute
And if you like the cover, we have wallpapers!
add a skeleton here at some point
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I was featured in PagedOut Issue #5 with my macOS notification forensics article (page 25). I find the whole idea of this magazine pretty cool. Lot's of interesting stuff in there!
add a skeleton here at some point
about 1 year ago
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reposted by
Csaba Fitzl
Phil Stokes ⫍🐠⫎
about 1 year ago
Excellent stuff even though i’m not really a phone guy. Love the reversing and the detailed explanation of the process. 👏 👏
naehrdine.blogspot.com/2024/11/reve...
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Reverse Engineering iOS 18 Inactivity Reboot
Wireless and firmware hacking, PhD life, Technology
https://naehrdine.blogspot.com/2024/11/reverse-engineering-ios-18-inactivity.html?m=1
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reposted by
Csaba Fitzl
typealias
about 1 year ago
@theevilbit.bsky.social
's Apple Disk-O Party
powerofcommunity.net/poc2024/Csab...
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https://powerofcommunity.net/poc2024/Csaba%20Fitzl,%20Apple%20Disk-O%20Party.pdf
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reposted by
Csaba Fitzl
Phil Stokes ⫍🐠⫎
about 1 year ago
#Apple
added three new rules for XCSSET - a
#malware
we’ve not seen since 2021 - to
#XProtect
this week as DubRobber F, G & H in v5282. Curious, to say the least.
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reposted by
Csaba Fitzl
Phil Stokes ⫍🐠⫎
about 1 year ago
Bunch of new Amos/Atomic
#macOS
#infostealers
if you pivot off ```behaviour_processes:"sh -c curl -s https[:]//api.ipify[.]org/?format=text" tag:macho``` Low detections on V(h/t
x.com/malwrhuntert...
)
#malware
#apple
#cybersecurity
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Apple M4 devices can't virtualize macOS versions prior to 13.4. Hopefully this will get fixed. More info here:
developer.apple.com/forums/threa...
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M4 devices - VMs pre 13.4 fail to … | Apple Developer Forums
https://developer.apple.com/forums/thread/768674
about 1 year ago
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reposted by
Csaba Fitzl
Phil Stokes ⫍🐠⫎
about 1 year ago
Last week, we released new research about new Mac
#malware
with TTPs consistent with suspected DPRK
#APT
BlueNoroff.
s1.ai/BNThief
. This week, friends-of-NK say we’re shills for US gov. 😂
easternherald.com/2024/11/10/s...
Hate to break it to ‘em, but that ain’t how we roll. 😆
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BlueNoroff Hidden Risk | Threat Actor Targets Macs with Fake Crypto News and Novel Persistence
SentinelLabs has observed a suspected DPRK threat actor targeting Crypto-related businesses with novel multi-stage malware.
https://s1.ai/BNThief
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Looks like there is an issue running Monterey VMs on M4 devices. I tried both UTM and VirtualBuddy, and UTM have an open issue on this:
github.com/utmapp/UTM/i...
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Apple M4 - Mac UTM open to black screen · Issue #6794 · utmapp/UTM
Black Screen upon UTM Build. When trying to spin up a NEW Mac Monterey UTM, I can see the percentage indicator loading up to and then at 100% the screen changes from the rolling circular lines to a...
https://github.com/utmapp/UTM/issues/6794
about 1 year ago
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Finder hangs (with the beachball) for a few seconds every time I delete an app. This happens even on a brand new Mac. Anyone knows why is that and how to fix it (if possible)?
about 1 year ago
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reposted by
Csaba Fitzl
North Pole Security
about 1 year ago
Last week we made our first Open Source release of Santa version 2024.10
github.com/northpolesec...
Highlights: 1. Streamlined UI with silencing options and added a button to copy relevant data to the clipboard to help users report issues / blocks to security
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🍎🐛🎙️Following my
#poc2024
talk we are releasing a blogpost series at Kandji, detailing the vulnerabilities of diskarbitrationd and storagekitd I discussed in my "Apple Disk-O Party" talk. First part is out, and covers CVE-2024-44175.
www.kandji.io/blog/macos-a...
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Uncovering Apple Vulnerabilities: The diskarbitrationd and storagekitd Audit Story Part 1
Kandji's Threat Research team performed an audit on the macOS diskarbitrationd & storagekitd system daemons, uncovering several (now fixed) vulnerabilities
https://www.kandji.io/blog/macos-audit-story-part1
about 1 year ago
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Thank you POC for having me! It was an awesome conference!
#poc2024
about 1 year ago
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🍎Another awesome blogpost from my colleagues Chris and Adam about a recently discovered macOS malware. 🎉
www.kandji.io/blog/fake-cl...
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It’s About The Journey: Fake Cloudflare Authenticator
A suspicious looking file on VirusTotal named Cloudflare Security Authenticator/cloudflare-auth-tauri was found 10/15/24 & uploaded from China the same day
https://www.kandji.io/blog/fake-cloudflare-authenticator
over 1 year ago
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reposted by
Csaba Fitzl
Dan Underwood
over 1 year ago
Proud of my colleagues who have driven the work on this - we just launched a huge amount of security material for PCC (Private Cloud Compute), including a new security guide, Virtual Research Environment, and source code
https://security.apple.com/blog/pcc-security-research/
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As always, Hacktivity Conference in Budapest was a blast! Great talks, and was good to see old friends and meet new people. See you in 2025! /photos by Dávid Tóth - thanks! 🙏/
over 1 year ago
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👏 Kudos to the Apple engineers who worked on my storagekitd - diskarbitrationd vuln patches. The patch: ⭕️ had to be applied across multiple components ⭕️ had to account for multiple vulns, where the patches could have messed up each other ⭕️ involved a very complex process flaw
over 1 year ago
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🍎🗒️ New macOS persistence blog post. 🎉 ➡️ Persist through the NVRAM - The 'apple-trusted-trampoline' Meet the rc.trampoline launchd 🚀 boot task.
theevilbit.github.io/beyond/beyon...
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Beyond the good ol' LaunchAgents - 35 - Persist through the NVRAM - The 'apple-trusted-trampoline'
This is part 35 in the series of “Beyond the good ol’ LaunchAgents”, where I try to collect various persistence techniques for macOS. For more background check the introduction. TL;DR - This is a prac...
https://theevilbit.github.io/beyond/beyond_0035/
over 1 year ago
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I pushed a massive update to @axelexic 's CSOps project, doing bug fixes and adding new functionality. I plan to add even more stuff later. If you want to play with the csops system call on macOS, this is the tool 👇
github.com/axelexic/CSOps
almost 2 years ago
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🆕🍎 My new blogpost at Kandji about how Apple attempts to mitigate some installer script vulnerabilities using "Install Script Actions" and "Install Script Mutations" in the PackageKit framework.
blog.kandji.io/apple-mitiga...
almost 2 years ago
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