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
pe - Golang package to parse Windows PE files that is fast, complete and robust against malformed files.
๐ฃGodswitch991
๐@malwr
๐ฃGodswitch991
๐@malwr
GitHub
GitHub - saferwall/pe: A lightweight Go package to parse, analyze and extract metadata from Portable Executable (PE) binaries.โฆ
A :zap: lightweight Go package to parse, analyze and extract metadata from Portable Executable (PE) binaries. Designed for malware analysis tasks and robust against PE malformations. - saferwall/pe
Signal: Exploiting vulnerabilities in Cellebrite UFED and Physical Analyzer from an app's perspective
๐ฃqw1ks1lv3r
Moxie rocking?
๐คmepher
I value privacy as much as the next guy, but this post and the previous one the author links to both come off as kind of immature. I get it that Cellebrite is a shady company, but publicly insulting them is quite unprofessional. "Amateur hour" may not look good for Cellebrite, but it sure doesn't look good for Signal either.
๐คIndependenceNo7975
that last paragraph...
๐คhacksauce
๐@malwr
๐ฃqw1ks1lv3r
Moxie rocking?
๐คmepher
I value privacy as much as the next guy, but this post and the previous one the author links to both come off as kind of immature. I get it that Cellebrite is a shady company, but publicly insulting them is quite unprofessional. "Amateur hour" may not look good for Cellebrite, but it sure doesn't look good for Signal either.
๐คIndependenceNo7975
that last paragraph...
๐คhacksauce
๐@malwr
Signal
Exploiting vulnerabilities in Cellebrite UFED and Physical Analyzer from an app's perspective
Cellebrite makes software to automate physically extracting and indexing data from mobile devices. They exist within the grey โ where enterprise branding joins together with the larcenous to be called โdigital intelligence.โ Their customer list has includedโฆ