What is an NTLM hash?
An NTLM hash is a Windows credential hash representation used in authentication flows and legacy environments.
NTLM Lookup
NTLM Lookup for Windows Assessments
NTLM hashes often appear in red team and IR workflows. This guide explains safe lookup practices and reporting structure.
Primary use: Resolve exposed NTLM hashes in authorized tests and improve Windows credential controls.
How to run this workflow
- Validate the hash as 32 character hexadecimal NTLM input.
- Run lookup and map findings to host, account role, and environment scope.
- Report weak credentials and enforce reset plus hardening controls.
Common questions
Why is NTLM still tested in pentests?
Many environments still expose NTLM paths, so testing helps reveal weak credential practices and lateral movement risk.
Can lookup results help incident response?
Yes. Quick identification of weak credentials helps responders scope blast radius and containment actions.
Trust and policy
CrackCrypt supports authorized security testing and account recovery workflows.
Lookup coverage currently includes MD5, SHA1, NTLM, SHA256, and SHA512 with dedicated high-speed databases for each supported format.
We build these prepared datasets to help security researchers save time and storage instead of maintaining huge local collections. Free public access is available today, and a premium version is planned for pentest teams that need faster workflows.
Last updated .
Review legal terms on the service terms page before using lookup or JWT testing features.
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Related guides
Site coverage
CrackCrypt includes hash lookup, API lookup integration, JWT checking, and JWT security testing pages across MD5, SHA1, NTLM, SHA256, and SHA512 workflows.
Use the main tool for live checks and use these focused pages when you need detailed guidance for reports and remediation plans across research, incident response, and pentest workflows.