Experimental Experimental Report III Report III

Student ID: 201721460034

Chinese People's Public Security University

Chinese people’ public security university

Network Warfare Technology

experimental report

Third experiment

Password cracking techniques

student name	Wu Jian Ming
grade	2017
District Team	Region VI team
mentor	Your opinion

Institute of Technology and Information Network Security

2019 Nian 12 Yue 9 Ri

Master experimental task

2019-2020 school year, Di Yi semester

First, the purpose of the experiment

1. Deepen and digest this course lectures, review what they have learned through the Internet search techniques, methods and techniques;

2. Become familiar with commonly used encryption algorithm, encryption and decryption tools, tools and other Internet resources to crack, given the ciphertext, encrypted file system password to crack;

3. The purpose of the consolidation of curriculum knowledge and practical application.

Second, the experimental requirements

1. Carefully read the contents of each experiment, we need to capture the title, to be clear screenshots and annotate screenshots and descriptions.

2. Documentation Requirements clear structure, graphic expression accurate labeling specifications. Reasoning was objective, reasonable and logical.

3. Software tools can be used john the ripper or hydra, dictionary generator, pwdump7 like.

4. After the experiment, to retain electronic documents.

Third, the experimental procedures

1. ready

Experimental preparation well in advance, should learn more about the purpose of the experiment, test requirements and test content before the experiment, familiar with the software tools and ready with a good experiment, in accordance with the requirements of experimental content and experimental content ready ahead of time.

2. lab environment

Describes the hardware and software environment used in the experiment (including a variety of software tools);

Office2003 boot and start the software or 2007, browser, encryption and decryption software.

3. experiment procedure

1) Start the system and start-up tool environment.

2) realization of experimental content using software tools.

4. experimental report

Write lab reports in accordance with the standard requirements of the test report format. The document prepared in accordance with the format template embedded test report document, the document written in accordance with the provisions of the written format, the form must be said that the graphics have a table Illustrated.

Tool here (the school site visits)

http://121.194.212.168/eol/homepage/course/layout/page/index.jsp?courseId=14280

The left teaching materials, tools and sample in

Tasks (a)

1. The following decryption string 35556C826BF3ADDFA2BB0F86E0819A6C. (Screenshot attached)

ppsuc

This seems to be a lyric, please tell me the song decrypted.

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

You raise me up

Task (b)

windows system password cracking

Use net user gao gao123 in windows xp system / add to add users gao, gao123 account password (user name and password can set their own); and use the net user command to add a user to determine success.

2. Use pwdump software exports native of sam file

sam文件中的新添加账户及其密码的加密后的字符串

3.使用saminside软件将sam.txt导入，并进行破解，注意配置字典破解和暴力破解

如果遇到复杂密码的LM值破解时间长，可以使用在线破解的方式。

http://www.objectif-securite.ch/ophcrack.php

任务（三）

内存密码提取

在系统中为Administrator用户设置一个高强度密码。

使用minikatz工具对系统的密码进行提取，涉及两条命令

第一条：privilege::debug //提升权限第二条：sekurlsa::logonpasswords //抓取密码

任务（四）

远程服务密码破解

两个同学配合完成，A同学搭建FTP服务器，并新建用户，并设置登陆密码

2.B同学使用hydra 对ftp用户的密码进行字典破解。hydra 中有关于该软件的使用命令语法。字典文件需要自己去生成。

任务（五）

应用程序密码破解

使用Rar crack软件破解，给出的RAR target文件的密码，并查看压缩包中的内容

破解软件和RAR target均在前面给出的链接里。

声明：凡因违规浏览而引起的任何法律纠纷，本人概不负责！

学号:201721460034

中国人民公安大学

Chinese people’ public security university

网络对抗技术

实验报告

实验三

密码破解技术

学生姓名	吴键铭
年级	2017级
区队	六区队
指导教师	高见

信息技术与网络安全学院

2019年12月9日

实验任务总纲

2019—2020 学年第一学期

一、实验目的

1．加深并消化本课程授课内容，复习所学过的互联网搜索技巧、方法和技术；

2．了解并熟悉常用加密算法、加解密工具、破解工具等互联网资源，对给定的密文、加密文件、系统密码进行破解；

3．达到巩固课程知识和实际应用的目的。

二、实验要求

1．认真阅读每个实验内容，需要截图的题目，需清晰截图并对截图进行标注和说明。

2．文档要求结构清晰，图文表达准确，标注规范。推理内容客观、合理、逻辑性强。

3．软件工具可使用john the ripper或hydra、字典生成器、pwdump7等。

4．实验结束后，保留电子文档。

三、实验步骤

1．准备

提前做好实验准备，实验前应把详细了解实验目的、实验要求和实验内容，熟悉并准备好实验用的软件工具，按照实验内容和要求提前做好实验内容的准备。

2．实验环境

描述实验所使用的硬件和软件环境（包括各种软件工具）；

开机并启动软件office2003或2007、浏览器、加解密软件。

3．实验过程

1）启动系统和启动工具软件环境。

2）用软件工具实现实验内容。

4．实验报告

按照统一要求的实验报告格式书写实验报告。把按照模板格式编写的文档嵌入到实验报告文档中，文档按照规定的书写格式书写，表格要有表说图形要有图说。

工具在这里（校内网站访问）