Anti-Hacker Tool Kit Password Cracking Brute-Force Tools Chapter 9

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Presentation transcript:

Anti-Hacker Tool Kit Password Cracking Brute-Force Tools Chapter 9 Vicky

Introduction “Password” is the key

About the password One-way hash Brute-Force Plain Text WZYxAM$5IGD3yl

Where is the password ? Shadow Password Solaris DES from /etc/passwd Mandrake DES from /etc/shadow FreeBSD MD5 from /etc/shadow OpenBSD Blowfish from /etc/master.passwd Windows 2000 from \WINNT\repair\SAM Encrypted Password

Start to Cracking John the Ripper Pwdump2 Pwdump3 L0phtCrack SMBGrind Nbaudit

John the Ripper Get the file Uncompress make

Benchmark

Start to cracking

Pwdump Grab a text version of the SAM Task Monitor Find out PID Get the hashs Grab a text version of the SAM Usage

Pwdump3 Pwdump2+remote access Usage

L0phtCrack Pwdump + Brute-Force Cracking

Removing the LanMan Hash Why… LanMan 69^7 MD4 96^8 How to… LaMan MD4 LaMan LaMan

Lasdump Dump the password from memory No cracking

SMBGrind

Nbaudit SMBGrind+ Scan address range Specify put file Usage

Windows may be more security Run secpol.msc

Summary: Strong password 好膽！賣走 long a-z numbers !@#$%^& A-Z

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