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SAM · SECURITY · SYSTEM · NTDS.dit

Dump Windows credentials, in your browser.

Client-side reimplementation of impacket's offline secretsdump.py — boot key, SAM NT/LM hashes, LSA secrets, DCC2 and NTDS.dit domain hashes.

100% client-side — nothing ever leaves your browser
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Drop your hives here

Drag in SYSTEM, SAM, SECURITY and/or NTDS.dit — or click to choose. They're auto-detected; order and filenames don't matter.

Synthetic hives from a fictional intrusion — no real credentials.

How to get your data

From zero to a dropped file in under two minutes.

  1. 1Collect the hives
  2. 2Drop the files here
  3. 3100% in your browser — nothing is uploaded

On the live host, open Command Prompt as administrator and save the three hives:

reg save HKLM\SYSTEM C:\triage\SYSTEM /y
reg save HKLM\SAM C:\triage\SAM /y
reg save HKLM\SECURITY C:\triage\SECURITY /y

Prerequisite: An elevated (Run as administrator) prompt on the host under investigation.

Then: Drop SYSTEM, SAM and SECURITY into the tool together — SYSTEM is required, the other two are optional.

Gotchas

  • Live hives are locked — a plain copy of C:\Windows\System32\config\SYSTEM yields a zero-filled or corrupt file. Use reg save, a shadow copy, or KAPE instead.
  • NTDS.dit is decrypted with the boot key from the SAME domain controller's SYSTEM hive — always collect that SYSTEM too (the ifm command does this for you).
  • Drop the files together — SYSTEM plus SAM/SECURITY, or NTDS.dit plus SYSTEM. Order and filenames don't matter and unrecognized files are ignored.

For authorized incident response only — on systems you own or are engaged to investigate.

A faithful offline secretsdump, in the browser

A fully client-side reimplementation of impacket's offline secretsdump.py — boot key, SAM NT/LM hashes, LSA secrets, cached domain logons (DCC2) and NTDS.dit domain hashes. Written in Rust, compiled to WebAssembly. Nothing ever leaves the page: your hives are parsed locally and never uploaded.

impacket-secretsdump usage & syntax

This tool reproduces the offline LOCAL mode of Impacket's secretsdump.py (installed as impacket-secretsdump on Debian/Kali). The core command targets are a host connection string or the LOCAL keyword for parsing hive files:

# Offline: parse exported hives (SYSTEM is always required)
impacket-secretsdump -sam sam.save -system system.save LOCAL
impacket-secretsdump -security security.save -system system.save LOCAL
impacket-secretsdump -ntds ntds.dit -system system.save LOCAL
impacket-secretsdump -sam sam.save -system system.save -outputfile hashes LOCAL

# Remote: connect to a host and dump SAM + LSA
secretsdump.py 'DOMAIN/user:password@10.0.0.5'
secretsdump.py -hashes ':NTHASH' 'DOMAIN/user@10.0.0.5'   # pass-the-hash
secretsdump.py -k -no-pass 'DOMAIN/user@dc01'             # Kerberos ccache

# DCSync: pull domain hashes from a DC (needs replication rights)
secretsdump.py -just-dc 'DOMAIN/user:password@dc01'
secretsdump.py -just-dc-ntlm 'DOMAIN/user:password@dc01'
secretsdump.py -just-dc-user krbtgt 'DOMAIN/user:password@dc01'

Key flags: LOCAL parses hives instead of connecting; -sam, -security, -system and -ntds point to the exported hive files; -hashes LM:NT authenticates by hash; -k/-no-pass use a Kerberos ccache; -just-dc, -just-dc-ntlm and -just-dc-user drive DCSync; and -outputfile writes the results to files. See the full secretsdump.py cheat sheet for every scenario.

How it works — field notes

Read the blog
Beyond Impacket secretsdump: pypykatz, gosecretsdump, NetExec, Mimikatz, SharpSecDump, DSInternals and secretsdump.com — what each does and when to reach for it.
A quick reference for Impacket secretsdump.py: offline LOCAL dumping of SAM, SECURITY and NTDS.dit hives, plus remote, pass-the-hash, Kerberos and DCSync usage.
How secretsdump's -just-dc uses the DRSUAPI replication protocol to pull every domain hash from a DC without touching disk — the required rights, the flags, and what it outputs.