Phrozen Timeline

PowerBruteLogon is a ported version of WinBruteLogon in pure PowerShell

Notice that this version is slower than WinBruteLogon but has the advantage to be 100% coded in PowerShell. In a near future, I will try to implement jobs to improve the speed of logon testing.

Be aware that both WinBruteLogon and PowerBruteLogon are very noisy, each failed attempt will result in a new "Bad Logon" log entry on Windows.

For more information about the whole concept behind this project, please read the following article

Read more...

PowerAssembly

Map in current PowerShell Instance Memory .NET Assemblies from remote web server.

When Assembly is mapped, you can invoke it's main with a command line argument.

The advantage of this technique is to avoid having assemblies written on disk. Everything happens in memory.

I'm using this script during my penetration tests / labs right after getting an initial shell on Windows to load other .NET Tools (Ex: ShapHound, ShapUp etc..)

Read more...

InnoSetup Execute Shellcode PoC

This proof of concept demonstrate how to take advantage of InnoSetup Scripting Engine to host local/remote process shellcode payload then execute.

The idea behind this concept is to demonstrate the dangerosity of (self) installers. Not only they can contain malicious programsn, they can also run native code through their scripting engines and evade AV detections because of their natural aspect.

The most difficult part was to understand how to use pointers/refs. Basically from this example, it is possible to create any kind of Malware from scratch (even more complex ones). Feel free to try, if you have any technical questions, feel free to ask for some help.

Read more...

This code snippet demonstrate how Malware authors take advantage of certain Windows API's to detect the presence of Windows Services that might indicate the presence of Virtualization Technologies and/or Sandbox in order to adapt their behavior and escape detection.

Read more...

This technique is often used by Malware to hide their presence on system after execution. The application self-delete after the end of its execution. The best method to archive a such goal is through process injection.

Read more...

ADS (Alternate Data Stream) is a channel often abused by Malware authors to hide files by abusing the property of NTFS File Systems.

It is mainly used to store: additional payloads, collected data or settings.

An ADS file is completely hidden from explorer. In modern version of Windows, you can display ADS files using the command dir /r or through using third part tools.

Read more...

NASM Shell++ is an enhanced version of the Metasploit Framework NASM Shell.

You can edit instructions, specify bad characters and finally export your final payload in Python, C or CPP

Read more...

This tool will help you to find code caves in target x86-32 bit Microsoft Windows PE files.

This tool automatically patch application entry point to redirect code execution to chosen code cave, where your payload is stored. When payload execution is over, code execution is redirected back to original program entry point.

Code Cave Helper supports main section encryption.

This tool is considered as a PoC, it was created during my preparation for OSCE Certification in order to master the art of Backdooring PE Files.

A good improvement would be to support x86-64 bit files and offer an option to create a new section instead of searching for natural code caves.

Read more...

YASE (Yet Another Sub Encoder) is a tiny but efficient Sub Encoder to quickly encode your shellcode payloads and thus bypass some common restricted character while exploiting buffer overflows.

This tool will brute force any possible combination to achieve expected result. The advantage of a such approach is to have an output result that always look different.

Read more...

Postgresql offer to developer the possibility to create their own plugins, often called UDF (User Defined Function).

In this paper we will demonstrate how we could take advantage of Postgresql UDF to run malicious code (in this example, shellcode) in a compromised database (Ex: through SQLi).

Notice, we must have sufficient privilege to register a new UDF. This is not always the case.

Read more...