Bypass 2FA Using noVNC

Steal credentials and bypass 2FA by giving users remote access to your server via an HTML5 VNC client that has a browser running in kiosk mode.

https://mrd0x.com/bypass-2fa-using-novnc/

#2fa #bypass #novnc

Red Team Tips

To get rid of Microsoft Defender "behaviour based" amsi detection in case of opening a https C2 channel, it can help, to play with the parameter UserAgent. For example, try a Windows Update User Agent.

#redteam #tips #defender #bypass

In-Process Patchless AMSI Bypass

https://ethicalchaos.dev/2022/04/17/in-process-patchless-amsi-bypass/

#amsi #bypass #av #evasion

KernelCallbackTable Injection

KernelCallbackTable which could be abused to inject shellcode in a remote process. This method of process injection was used by FinFisher/FinSpy and Lazarus.

https://captmeelo.com/redteam/maldev/2022/04/21/kernelcallbacktable-injection.html

#edr #bypass #injection #cpp #maldev

⚔️ Mangle — EDR Bypass

This is a tool that manipulates aspects of compiled executables (.exe or DLL). Mangle can remove known Indicators of Compromise (IoC) based strings and replace them with random characters, change the file by inflating the size to avoid EDRs, and can clone code-signing certs from legitimate files. In doing so, Mangle helps loaders evade on-disk and in-memory scanners.

https://github.com/optiv/Mangle

#edr #bypass #inflate #certificate

💉 Dirty Vanity — A New Approach to Code injection & EDR bypass

A POC for the new injection technique, abusing windows fork API to evade EDRs.

Source:
https://github.com/deepinstinct/Dirty-Vanity

Research:
https://i.blackhat.com/EU-22/Thursday-Briefings/EU-22-Nissan-DirtyVanity.pdf

#av #edr #bypass #injection #fork #api

🎲 PowerShell Obfuscation

A simple and effective powershell obfuscaiton tool bypass Anti-Virus and AMSI-bypass + ETW-block.

https://github.com/H4de5-7/powershell-obfuscation

#powershell #obfuscation #amsi #etw #bypass

Это реально круто!

Вкратце: позволяет записывать файлы, созданные маяком кобальта (на примере кобальта), в память, а не на диск в системе.

https://github.com/Octoberfest7/MemFiles

#redteam #pentest #git #cs #bypass

🔀 Direct Syscalls vs Indirect Syscalls

This post discusses Indirect Syscalls as a solution to eliminate indicators of compromise and avoid detection by EDRs. Indirect Syscalls allow the execution of Syscall and Return statements in the memory of ntdll.dll, which is the usual behavior in Windows.

https://redops.at/en/blog/direct-syscalls-vs-indirect-syscalls

#maldev #syscall #edr #bypass

⛓ Divide and Rule — AMSI Bypass

By spliiting well known PowerShell scripts, e.g. an AMSI Bypass, we can directly bypass Windows Defender or get at least the line, where the detection occurs. Outcome: Several AMSI Bypasses and two scripts:

- One to split PowerShell snippets in multiple lines
- A second script to run all the files in an Oneliner, XOR obfuscated

https://badoption.eu/blog/2023/07/15/divideconqer.html

#amsi #av #bypass #powershell

🔨KRBUACBypass

By adding a KERB-AD-RESTRICTION-ENTRY to the service ticket, but filling in a fake MachineID, we can easily bypass UAC and gain SYSTEM privileges.

Research:
https://www.tiraniddo.dev/2022/03/bypassing-uac-in-most-complex-way.html

Source:
https://github.com/wh0amitz/KRBUACBypass

#ad #kerberos #uac #bypass