secretsdump.py, impacket-secretsdump : add page (#15812)

* secretsdump.py: add page

* impacket-secretsdump: add Alias

* Update secretsdump.py.md

Update examples

* Update pages/common/secretsdump.py.md

Co-authored-by: Sebastiaan Speck <12570668+sebastiaanspeck@users.noreply.github.com>

---------

Co-authored-by: Sebastiaan Speck <12570668+sebastiaanspeck@users.noreply.github.com>

pages/common/impacket-secretsdump.md

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+# impacket-secretsdump
+
+> This command is an alias of `secretsdump.py`.
+> More information: <https://github.com/fortra/impacket>.
+
+- View documentation for the original command:
+
+`tldr secretsdump.py`

pages/common/secretsdump.py.md

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+# secretsdump.py
+
+> Dump NTLM hashes, plaintext passwords, and domain credentials from remote Windows systems.
+> Part of the Impacket suite.
+> More information: <https://github.com/fortra/impacket>.
+
+- Dump credentials from a Windows machine using a username and password:
+
+`secretsdump.py {{domain}}/{{username}}:{{password}}@{{target}}`
+
+- Dump hashes from a machine using pass-the-hash authentication:
+
+`secretsdump.py -hashes {{LM_Hash}}:{{NT_Hash}} {{domain}}/{{username}}@{{target}}`
+
+- Dump credentials from Active Directory’s NTDS.dit file:
+
+`secretsdump.py -just-dc {{domain}}/{{username}}:{{password}}@{{target}}`
+
+- Extract credentials from a local SAM database using registry hives:
+
+`secretsdump.py -sam {{path/to/SAM}} -system {{path/to/SYSTEM}}`
+
+- Dump hashes from a machine without providing a password (if a valid authentication session exists, e.g. via Kerberos or NTLM SSO):
+
+`secretsdump.py -no-pass {{domain}}/{{username}}@{{target}}`