Obtaining NTLM Hash Values Without Interfering with LSASS

30.04.2025

The Power Behind Industry Leaders

About the E-book

This study presents an alternative method for obtaining NTLM hashes of logged-in users without directly accessing LSASS memory. By combining the NetExec tool with an NTLMv1 downgrade attack, this approach leverages the authentication process to reduce the detection risk associated with traditional LSASS dumping techniques.

Simple (generic) passwords can be cracked within seconds or minutes, while more complex ones can be reliably recovered in an average of 14 hours using GPU resources—regardless of password length.

E-Book Content Highlights:

NTLMv1 Downgrade: Detailed technical explanation and practical implementation of the downgrade technique.

Attack Prerequisites: Conditions, stages, and tools required to perform the attack effectively.

This e-book provides cybersecurity and network professionals with actionable tactics and hands-on techniques for extracting NTLM hash values without interacting with LSASS.