Ricardo J. Ruiz Fernández

Pentester | OffSec instructor | OSCE3 OSCP GX-PT

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Getting RCE in an AWS service (Amazon MWAA)

July 28, 2025 Cloud Web Exploitation Tools

Amazon Managed Workflows for Apache Airflow (MWAA) is a managed service to run Apache Airflow on AWS without managing infrastructure. However, most installations are affected by CVE-2024-39877, an SSTI vulnerability which allows remote code execution.

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DoubleTeam - Python listener based on tmux and socat

July 14, 2025 Red Team Tools

Using socat, tmux and Python threading, DoubleTeam launches a new tmux window for each incoming reverse shell. It supports simultaneous listening on many ports and automatically resumes listening on the port after spawning the tmux window.

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MemorySnitcher and the power of NtReadVirtualMemory

July 7, 2025 Credential Access Tools

Creating vulnerable (on purpose) programs to leak the NtReadVirtualMemory address for stealthier API resolution (no GetProcAddress, GetModuleHandle or LoadLibrary in the IAT).

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NimDump - Stealthy LSASS Dumping Using Only NTAPIs in Nim

May 5, 2025 Credential Access Malware Development Tools

NimDump is a port of NativeDump written in Nim, designed to dump the LSASS process using only NTAPI functions.

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Playing with malicious Network Provider DLLs

April 16, 2025 Credential Access Tools

NPPSpy and NPPSPy2 are great tools to retrieve user credentials. In this repository, I will add some extra functionality to them, such as encryption and different exfiltration techniques.

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NativeTokenImpersonate - Token Impersonation using only NTAPIs

April 2, 2025 Malware Development Privilege Escalation Tools

Tool to impersonate users by stealing their tokens using only NTAPI functions. It supports two types of impersonation, one similar to CreateProcessWithToken and the other to ImpersonateLoggedOnUser.

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NativeNtdllRemap - Stealthy ntdll.dll Remapping

April 1, 2025 Malware Development Tools

Use only NTAPI functions to stealthily remap ntdll.dll from a clean .text section of a suspended process. This technique bypasses user-mode API monitoring and enhances evasion against security solutions.

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RCE via malicious plugin in EMQX Dashboard

March 27, 2025 Web Exploitation Tools

This is a malicious plugin for EMQX Dashboard which allows to execute commands remotely in versions below 5.8.6. Written in Erlang, it is based on one of the latest releases of the EMQX plugin template repository.

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