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EC-Council: Computer Hacking Forensic Investigator(CHFI-V10)
Module 5 : Defeating Anti-forensics Techniques
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Chloe is a forensic examiner who is currently cracking hashed passwords for a crucial mission and hopefully solve the case. She is using a lookup table used for recovering a plain text password from cipher text; it contains word list and brute-force list along with their computed hash values. Chloe is also using a graphical generator that supports SHA1. a. What password technique is being used? b. What tool is Chloe using?
A:    a. Dictionary attack b. Cisco PIX
B:    a. Cain & Able b. Rten
C:    a. Rainbow Tables b. Winrtgen
D:    a. Brute-force b. MScache
Explanation: A rainbow table is a precomputed table for caching the outputs of a cryptographic hash function, usually for cracking password hashes. Passwords are typically stored not in plain text form, but as hash values. Winrtgen is a graphical Rainbow Tables Generator that supports multiple signature types, such as MD-4, MD-5, FastLM, SHA-256, ORACLE, and CiscoPIX