It's been a while since I wrote the #BLUETEAMTIPS post - exactly a year tbh 😉
While I've only worked on a few recently I still strongly standby all previous points as a starting point to help defend your network. Try hit all 21 and see! 😎
#DFIR#BLUETEAMTIPS🔵
This is basically all that AMSI reports for DotNetToJScript execution 🤔.. I guess the error messages together with the base64 are probably informative enough to write a signature (I have not investigated at scale) 🔥🔫
I've updated the #BlueTeamTips blog post.
19. Control the Power of PowerShell
-The PowerShell “version 2 problem".
-Lock PowerShell down to only talk to RFC1918 ranges. @brunogdiniz 👏
-Monitor for PowerShell .NET assembly calls with Sysmon/EDR tooling
#DFIR#PowerShell
Updated my Metasploit module that assists in bypassing Applocker to include WMIC.exe bypass by @subTee and Workflow.Compiler.exe by @mattifestation. Give it a try here: https://t.co/BXDKb7z1Ax.
@sneakymonk3y Yup the R480 can use AMD's open source AMDGPU PRO driver. So you would get OpenGL, OpenCL, Vulkan support. AMD has overtaken Nvidia on Linux.
Three part blog post on how I switched to Linux and created a virtual lab using QEMU/KVM, IOMMU and PCI passthrough.
Post 1 https://t.co/fSqdtv0t4w
Post 2 https://t.co/5vyNMPXCzR
Post 3 https://t.co/pPkPqvOYGF
New persistence technique using GlobalFlags in Image File Execution Options
https://t.co/Xkq6mC5K2q
Does not show up in Autoruns.exe.
Enjoy! #Blogpost#FeedBackWelcome
Windows Script File 'tampering' with manage-bde.wsf
(...not really sure if this script is needed for "backwards compatibility" anymore)
https://t.co/D63RXSmqcy
Lots more phishing documents - including one sent yesterday (MIT.doc) - and a breakdown of the TTP shift*️⃣ in our #MuddyWater 🇮🇷 campaign write-up: https://t.co/3FOrkzJ7YZ
That's a lot of POWERSTATS! #DFIR
*️⃣ Feb 2018 use of .INF + .SCT files https://t.co/5eEvkMEl7U
Leveraging INF-SCT Fetch & Execute Techniques For Bypass, Evasion, & Persistence [featuring InstallHinfSection, CMSTP, LaunchINFSection]
Special thanks to @Oddvarmoe and @ItsReallyNick for their insight!
https://t.co/050zbVWOfO