In our never-ending hunt for new persistence techniques, @mutantvillian and I spent some time digging into using preview handlers over the past few weeks. Today we're publishing our research along with detection guidance. https://t.co/3gizujwN8R
Did you know that on Windows you can write non-writable pages and execute code in non-executable memory? I discovered it some days ago looking at a known ransomware.
Details & PoC: https://t.co/wUF8x6V2vu
I haven't see any good Constrained Language Mode bypasses, so I made this. It reflectively modifies the runtime and spawns a FLM powershell session without running powershell.exe. Can be used w/ InstallUtil to bypass AppLocker.
https://t.co/1iPnThCFFr
Do you trust RunAsPPL? The "prevent code injection that could compromise credentials" narration? Technically it is right, as you cannot load your DLL into LSASS. But what if LSASS.exe passes cleartext passwords to mpnotify.exe, which automatically loads untrusted DLLs? 😱
Want more AV/EDR hooking and bypasses? This article has some solid depth to it (and it is quite readable too).
Thank you to Matthew Eidelberg at @optiv for the article.
https://t.co/KO2lkKkfqZ
What are your first 5 Active Directory post access techniques in a red team?
Starting list no particular order:
1. Password Spraying
2. Kerberoasting
3. File search (passwords, backups, etc.)
4. LLMNR/mDNS/NBNS
5. Insecure mailbox search
Yours?
Introducing SharpSphere, a .NET project for attacking vCenter:
- C2 into target VMs, without need network visibility
- Code execution
- File upload/download
- VM enumeration
https://t.co/SBzIRKEXy6
https://t.co/9yIYqJGQ8p
Simple, but fully working #backdoor based on #IIS + #PowerShell. With remote commands issued through Base64 in the URL.
Inspired by discussions with @pawelmaziarz :)
You can install it with ready-to-use PowerShell script: https://t.co/BGHaJiqWZS