pwdump

pwdump is the name of various Windows programs that output the LM and NTLM password hashes of local user accounts from the Security Account Manager (SAM). In order to work, it must be run under an Administrator account, or be able to access an Administrator account on the computer where the hashes are to be dumped. Pwdump could be said to compromise security because it could allow a malicious administrator to access user's passwords.

History

The initial program called pwdump was written by Jeremy Allison. He published the source code in 1997 (see open-source).[1] Since then there have been further developments by other programmers:

1. pwdump (1997) — original program by Jeremy Allison.[2]
2. pwdump2 (2000) — by Todd Sabin of Bindview (GPL), uses DLL injection.[3]
3. pwdump3 — by Phil Staubs (GPL), works over the network.
   • pwdump3e — by Phil Staubs (GPL), sends encrypted over network.
4. pwdump4 — by bingle (GPL), improvement on pwdump3 and pwdump2.
5. pwdump5 — by AntonYo! (freeware).
6. pwdump6 (c. 2006) — by fizzgig (GPL), improvement of pwdump3e. NO source code.
   • fgdump (2007) — by fizzgig, improvement of pwdump6 w/ addons. No source code.
7. pwdump7 — by Andres Tarasco (freeware), uses own filesystem drivers. No source code.
8. pwdump8 — by Fulvio Zanetti and Andrea Petralia, supporting AES128 encrypted hashes on Windows10 v1607 and later. No source code. [4]

Notes

1. Allison 2012 see pwdump.c
2. Allison 2012.
3. SecuriTeam.com 2017.
4. Blackmath 2019. sfn error: no target: CITEREFBlackmath2019 (help)

References

• Allison, Jeremy (30 September 2012). "Index of /pub/samba/pwdump". Samba. Retrieved 15 June 2017.CS1 maint: ref=harv (link)
• Sabin, Todd (1 February 2017). "New version of PWDump2 allows dumping of password hashes Active Directory". SecuriTeam.com. Retrieved 15 June 2017.
• "pwdump8". forums.hak5.org. 15 May 2019.

External links

• Openwall password tools - with copies of pwdump, pwdump2, pwdump3, pwdump3e, pwdump4, pwdump5, pwdump6, fgdump, and pwdump7