Pass the Hash
Pass the hash (PtH) is a method of authenticating as a user without having access to the user's cleartext password. This method bypasses standard authentication steps that require a cleartext password, moving directly into the portion of the authentication that uses the password hash. In this technique, valid password hashes for the account being used are captured using a Credential Access technique. Captured hashes are used with PtH to authenticate as that user. Once authenticated, PtH may be used to perform actions on local or remote systems.
Windows 7 and higher with KB2871997 require valid domain user credentials or RID 500 administrator hashes. 
|Password Policies||Ensure that built-in and created local administrator accounts have complex, unique passwords.|
|Privileged Account Management||Limit credential overlap across systems to prevent the damage of credential compromise and reduce the adversary's ability to perform Lateral Movement between systems.|
|Update Software||Apply patch KB2871997 to Windows 7 and higher systems to limit the default access of accounts in the local administrator group.|
|User Account Control||
Enable pass the hash mitigations to apply UAC restrictions to local accounts on network logon. The associated Registry key is located
|User Account Management||Do not allow a domain user to be in the local administrator group on multiple systems.|
Audit all logon and credential use events and review for discrepancies. Unusual remote logins that correlate with other suspicious activity (such as writing and executing binaries) may indicate malicious activity. NTLM LogonType 3 authentications that are not associated to a domain login and are not anonymous logins are suspicious.
- National Security Agency/Central Security Service Information Assurance Directorate. (2015, August 7). Spotting the Adversary with Windows Event Log Monitoring. Retrieved September 6, 2018.
- Mandiant. (n.d.). APT1 Exposing One of China’s Cyber Espionage Units. Retrieved July 18, 2016.
- Anthe, C. et al. (2015, October 19). Microsoft Security Intelligence Report Volume 19. Retrieved December 23, 2015.
- Dahan, A. (2017). Operation Cobalt Kitty. Retrieved December 27, 2018.
- Cobalt Strike. (2017, December 8). Tactics, Techniques, and Procedures. Retrieved December 20, 2017.
- Schroeder, W., Warner, J., Nelson, M. (n.d.). Github PowerShellEmpire. Retrieved April 28, 2016.
- US-CERT. (2019, April 10). MAR-10135536-8 – North Korean Trojan: HOPLIGHT. Retrieved April 19, 2019.
- Metcalf, S. (2015, November 13). Unofficial Guide to Mimikatz & Command Reference. Retrieved December 23, 2015.
- The Australian Cyber Security Centre (ACSC), the Canadian Centre for Cyber Security (CCCS), the New Zealand National Cyber Security Centre (NZ NCSC), CERT New Zealand, the UK National Cyber Security Centre (UK NCSC) and the US National Cybersecurity and Communications Integration Center (NCCIC). (2018, October 11). Joint report on publicly available hacking tools. Retrieved March 11, 2019.
- McAfee® Foundstone® Professional Services and McAfee Labs™. (2011, February 10). Global Energy Cyberattacks: “Night Dragon”. Retrieved February 19, 2018.
- Nettitude. (2016, June 8). PoshC2: Powershell C2 Server and Implants. Retrieved April 23, 2019.
- Cybereason Nocturnus. (2019, June 25). Operation Soft Cell: A Worldwide Campaign Against Telecommunications Providers. Retrieved July 18, 2019.
- NSA IAD. (2017, January 24). MS Security Guide. Retrieved December 18, 2017.