TigerJack's Extensions Continue to Rob Developers Blind Across Different Marketplaces

Abusing Whitelisted Programs for Arbitrary Writes

Written by Christopher Paschen

Published on Thu 06 November 2025 by SAERXCIT (@SAERXCIT)

TL;DR: Using call gadgets to insert arbitrary modules in the call stack during module load, breaking signatures used in detection rules. The code is available here: https://github.com/AlmondOffSec/LibTPLoadLib

Professional: NVTDK-QB8J9-M28GR-92BPC-BTHXK
Enterprise: VYGRN-WPR22-HG4X3-692BF-QGT2V

This document provides a detailed technical analysis of a proof-of-concept that demonstrates DLL sideloading by targeting OneDrive.exe with a malicious version.dll. This technique is leveraged for achieving persistence, evading defenses, and executing arbitrary code within the context of a trusted process. The proof-of-concept further employs DLL proxying to maintain the normal operation of the host application and utilizes a sophisticated hooking mechanism based on Vectored Exception Handling (VEH) and hardware-like breakpoints to intercept and modify application behavior.

Rans dev from Chinese

Obfuscating function calls using Vectored Exception Handlers by redirecting execution through exception-based control flow. Uses byte switching without memory or assembly allocation.

A PowerShell utility that changes Windows account passwords through the native Samlib.dll API, the same low-level library used by Windows itself for SAM and NTLM account management.

This project demonstrates how local or domain password changes can occur at the NTLM level using SamiChangePasswordUser without triggering all of the typical password-change events.