L0phtCrack

Infobox Software
name = L0phtCrack


caption = The result of a quick audit on an example password list provided with the program.
collapsible = yes
developer = Peiter Zatko (Mudge), Chris Wysopal (Weld Pond), Christien Rioux (DilDog), Rob Cheyne, Ian Melvin
operating_system = Microsoft Windows
latest_release_version = 5.04
latest_release_date = release_date|2004|08|11
genre = Password Cracking, Operating System Audit
license = Shareware
website = [http://sectools.org/tools2.html Unofficial mirror]

L0phtCrack is a password auditing and recovery application (now called LC5), originally produced by Mudge from L0pht Heavy Industries. It is used to test password strength and sometimes to recover lost Microsoft Windows passwords, by using dictionary, brute-force, and hybrid attacks.cite web |url=http://sectools.org/tools2.html |title=Top 100 Network Security Tools (Page 2/4) |accessdate=2008-09-18] It was one of the crackers' tools of choice, although most use old versions because of its price and low availability.

The application was produced by @stake after the L0pht merged with @stake in 2000. @stake was then acquired by Symantec in 2004. [cite news |url=http://www.eweek.com/c/a/Security/Symantec-Buys-Security-Consulting-Pioneer-stake/ |title=Symantec Buys Security Consulting Pioneer @stake |last=Fisher |first=Dennis |publisher=eWeek |date=2004-09-16] Symantec has since stopped selling this tool to new customers citing US Government export regulations, and discontinued support in December 2006.cite news |url=http://www.eweek.com/article2/0,1895,1935616,00.asp |title=Symantec Pulls Plug on L0phtCrack |date=2006-03-08 |last=Naraine |first=Ryan |accessdate=2008-09-18] LC5 can still be downloaded from unofficial mirrors.

References