PPTP Challenge/Response Sniffer & Active Attack Addon for L0phtCrack. Basically, it actively attacks PPTP logon via the MS-CHAP password change protocol version 1 to obtain the LANMAN and NT password hashes. Note that once you get the password hashes, you dont even need to crack the passwords to logon onto an SMB server or PPTP server. There is currently no patch from Microsoft to protect against this.
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