Initial access: client-side container attack

📌 Initial access: client-side container attack

The research demonstrates how an attacker can gain initial access to a victim's workstation through social engineering by delivering a legitimate, signed EXE file that loads a malicious DLL.

The author suggests using the Windows Address Book executable wab.exe, which is unlikely to raise suspicion. The malicious payload is placed in one of the spoofed DLLs in the loading chain. When the Microsoft-signed binary is executed, the corresponding DLL is automatically loaded, allowing arbitrary code execution with the user's privileges.

To create the spoofed module, the tools Perfect DLL Proxy or Sharp Dll Proxy are used, and compilation is performed with cl.exe. After unpacking the archive, the DLL is hidden using the +h attribute, making it harder to detect.

Although the Hijack Execution Flow: DLL technique (MITRE ATT&CK T1574.001) is well known, the paper once again highlights that social engineering as a delivery method exploits the weakest link in any system — the human factor.

📎 Article: https://www.exploitz.ca/post/initial-access-client-side-container-attack