Getting Started Reverse Engineering Bare Metal Kernel Images - (Part 1/Setup) | This is a series, more will be released soon.
๐ฃragnarsecurity
Arent all kernels bare metal kernels? Iv not seen one that is specifically designed to run in a VM. I dont doubt that one may exist, but ive never seen one.
๐คAllenKll
Hey man, good write up :)
Can I ask what do you refer to as a "kernel"? In my experience, kernel is generally only used to refer to a component of an OS.
I'd generally describe a bare metal firmware as having no kernel. And the built application is just a binary, or a firmware image.
๐คPalantir555
๐@malwr
๐ฃragnarsecurity
Arent all kernels bare metal kernels? Iv not seen one that is specifically designed to run in a VM. I dont doubt that one may exist, but ive never seen one.
๐คAllenKll
Hey man, good write up :)
Can I ask what do you refer to as a "kernel"? In my experience, kernel is generally only used to refer to a component of an OS.
I'd generally describe a bare metal firmware as having no kernel. And the built application is just a binary, or a firmware image.
๐คPalantir555
๐@malwr
Medium
Reverse Engineering Bare Metal Kernel Images with QEMU- Part 1
This tutorial was designed as a setup tutorial for UMDCTF; however, it will be also be a part of a series for bare-metal embeddedโฆ
Transparent Tribe APT Infrastructure Mapping Part 1: A High-Level Study of CrimsonRAT Infrastructure October 2020 โ March 2021
๐ฃdigicat
๐@malwr
๐ฃdigicat
๐@malwr
Team Cymru
Transparent Tribe APT Infrastructure Mapping
This is the first article of a two-part series on Transparent Tribe's CrimsonRAT infrastructure. We have been tracking CrimsonRAT , this APT group's most ubiquitous remote access tool, over a number of months. This blog will present our high-level observationsโฆ
List of Popular Applications that use the `--no-sandbox` flag when running Chromium and Chrome based Applications and may expose users to RCE vulnerabilities.
๐ฃdocker-osx
This is literally just a list of Electron apps...
I'm not sure what "Untrusted desktop application without source code" has to do with sandboxing... if they wanted to give you malicious code, they don't need to use JS to do it. This feels like the author fundamentally doesn't understand the purpose of the sandbox and/or the security issues at hand.
Similarly with extensions, it seems pretty dumb to assume that a malicious extension in many of these applications wouldn't be able to cause damage regardless, especially considering that some of the extensions (e.g. for Teams, VSCode) are designed for performing file-system operations already.
It's also odd to me that this list doesn't separate what I would consider to be the biggest distinction for a discussion of sandboxing, which is whether or not the app renders web content from untrusted sources (e.g. chat rooms). I believe that would exclude VSCode, but would include Twitch, Slack, Signal, FBM, Teams, Discord, and Keybase. However, I don't think any of these intentionally accept arbitrary JS, so exploits still seem unlikely without some kind of additional XSS exploit.
๐คthealliedhacker
PoC or GTFO
๐คairza
What's the concern with Slack if it's sandboxed? That it's not open source?
๐คhillgod
๐@malwr
๐ฃdocker-osx
This is literally just a list of Electron apps...
I'm not sure what "Untrusted desktop application without source code" has to do with sandboxing... if they wanted to give you malicious code, they don't need to use JS to do it. This feels like the author fundamentally doesn't understand the purpose of the sandbox and/or the security issues at hand.
Similarly with extensions, it seems pretty dumb to assume that a malicious extension in many of these applications wouldn't be able to cause damage regardless, especially considering that some of the extensions (e.g. for Teams, VSCode) are designed for performing file-system operations already.
It's also odd to me that this list doesn't separate what I would consider to be the biggest distinction for a discussion of sandboxing, which is whether or not the app renders web content from untrusted sources (e.g. chat rooms). I believe that would exclude VSCode, but would include Twitch, Slack, Signal, FBM, Teams, Discord, and Keybase. However, I don't think any of these intentionally accept arbitrary JS, so exploits still seem unlikely without some kind of additional XSS exploit.
๐คthealliedhacker
PoC or GTFO
๐คairza
What's the concern with Slack if it's sandboxed? That it's not open source?
๐คhillgod
๐@malwr
GitHub
GitHub - sickcodes/no-sandbox: No Sandbox - Applications That Run Chromium and Chrome Without The Sandbox. TL;DR exploits in theseโฆ
No Sandbox - Applications That Run Chromium and Chrome Without The Sandbox. TL;DR exploits in these browser based applications are already sandboxed escaped: https://no-sandbox.io/ - sickcodes/no-s...
qrljacker for whatsapp
working program to generate a qrl code that when scanned, takes over somenes whatsapp session https://www.youtube.com/watch?v=TTf2MSPGuuA
๐ฃpwndbyqatux
๐@malwr
working program to generate a qrl code that when scanned, takes over somenes whatsapp session https://www.youtube.com/watch?v=TTf2MSPGuuA
๐ฃpwndbyqatux
๐@malwr
YouTube
qrl
by generating a malicious qrlcode, you can hijack somebodys whatsapp session. this has worked for years and i dont see it stopping in the forseeable future. you should know that this exists and how its used in order to avoid having it done to you.
MITRE ATT&CK Evaluation
Good morning all,
Might be useful information for red teamers with knowing product and what may get past with little to no information passed to blueteams.
https://attackevals.mitre-engenuity.org/enterprise/carbanak\_fin7/
Hope it helps
๐ฃicedcougar
๐@malwr
Good morning all,
Might be useful information for red teamers with knowing product and what may get past with little to no information passed to blueteams.
https://attackevals.mitre-engenuity.org/enterprise/carbanak\_fin7/
Hope it helps
๐ฃicedcougar
๐@malwr
Reddit
r/redteamsec on Reddit: MITRE ATT&CK Evaluation
Posted by u/icedcougar - 27 votes and 1 comment
Easy Malware to Reverse Engineer
Hey I have recently been analyzing some sample malware and everything I can find is for people far more advanced than me. Does anyone know were I can find some simple malware examples? I am using IDAPro and WinDbg
๐ฃwp28
There is https://github.com/ytisf/theZoo
It has the reversed source code too
๐คkcirtappockets
If you havenโt already, working throughout the exercises and chapters in Practical Malware Analysis is a good starting point.
๐คrevolver-ocelot-saa
id be interested in knowing this as well
๐คansolo00
๐@malwr
Hey I have recently been analyzing some sample malware and everything I can find is for people far more advanced than me. Does anyone know were I can find some simple malware examples? I am using IDAPro and WinDbg
๐ฃwp28
There is https://github.com/ytisf/theZoo
It has the reversed source code too
๐คkcirtappockets
If you havenโt already, working throughout the exercises and chapters in Practical Malware Analysis is a good starting point.
๐คrevolver-ocelot-saa
id be interested in knowing this as well
๐คansolo00
๐@malwr
Reddit
From the Malware community on Reddit
Explore this post and more from the Malware community
Check Your Pulse: Suspected APT Actors Leverage Authentication Bypass Techniques and Pulse Secure Zero-Day
๐ฃkickinitlegit
๐@malwr
๐ฃkickinitlegit
๐@malwr
Google Cloud
Mandiant Cybersecurity Consulting
Transform cyber defense with Mandiant. Engage frontline experts for incident response, threat intelligence services, and cyber risk management.
CVE-2021-30481: Source engine remote code execution via game invites
๐ฃhyperreality_monero
1 year to triage๐ณ
๐คi_has_many_cs
๐@malwr
๐ฃhyperreality_monero
1 year to triage๐ณ
๐คi_has_many_cs
๐@malwr
secret club
CVE-2021-30481: Source engine remote code execution via game invites
Steam is the most popular PC game launcher in the world. It gives millions of people the chance to play their favorite video games with their friends using the built in friend and party system, so itโs safe to assume most users have accepted an invite atโฆ
Check Your Pulse: Suspected APT Actors Leverage Authentication Bypass Techniques and Pulse Secure Zero-Day
๐ฃb1x3r
๐@malwr
๐ฃb1x3r
๐@malwr
Google Cloud
Mandiant Cybersecurity Consulting
Transform cyber defense with Mandiant. Engage frontline experts for incident response, threat intelligence services, and cyber risk management.
Zero-Day Exploits in SonicWall Email Security Lead to Enterprise Compromise
๐ฃdigicat
https://www.sonicwall.comsupport/product-notification/security-notice-sonicwall-email-security-zero-day-vulnerabilities/210416112932360/
๐คdigicat
๐@malwr
๐ฃdigicat
https://www.sonicwall.comsupport/product-notification/security-notice-sonicwall-email-security-zero-day-vulnerabilities/210416112932360/
๐คdigicat
๐@malwr
Google Cloud
Mandiant Cybersecurity Consulting
Transform cyber defense with Mandiant. Engage frontline experts for incident response, threat intelligence services, and cyber risk management.
Detect and exploit OS command injection vulnerabilities against #GraphQL applications via commix.
๐ฃAlex4nd3r
https://twitter.com/commixproject/status/1384724380647895041
๐คRemyLebau
๐@malwr
๐ฃAlex4nd3r
https://twitter.com/commixproject/status/1384724380647895041
๐คRemyLebau
๐@malwr
GitHub
Minor improvement regarding parsing GraphQL JSON objects. ยท commixproject/commix@a8f1a8a
Automated All-in-One OS Command Injection Exploitation Tool - commixproject/commix