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74 lines
1.7 KiB
Markdown
74 lines
1.7 KiB
Markdown
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# 6.4 习题答案
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- 一、基础知识篇
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- [1.1 ctf 介绍]
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- 二、工具篇
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- [2.1 gdb/peda]
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- [2.2 ollydbg]
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- [2.3 windbg]
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- [2.4 radare2]
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- [2.5 IDA Pro]
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- [2.6 pwntools]
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- 三、分类专题篇
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- [3.1 Reverse]
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- [3.2 Crypto]
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- [3.3 Pwn]
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- [3.4 Web]
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- [3.5 Misc]
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- [3.6 Mobile]
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- 四、技巧篇
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- 五、高级篇
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- 六、附录
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- [6.1 更多 Linux 工具]
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- [6.2 更多 Windows 工具]
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- [6.3 博客、文章和书籍]
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- [6.4 习题 write-up]
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## 6.1 更多 Linux 工具
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#### Strings - strings_crackme
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```text
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[firmy@Reverse]$ strings -e L strings_crackme
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w0wgreat
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```
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#### Strings - flag_pwnablekr
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```text
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[firmy@Reverse]$ ./flag_pwnablekr
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I will malloc() and strcpy the flag there. take it.
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[firmy@Reverse]$ strings flag_pwnablekr | grep UPX
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UPX!
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$Info: This file is packed with the UPX executable packer http://upx.sf.net $
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$Id: UPX 3.08 Copyright (C) 1996-2011 the UPX Team. All Rights Reserved. $
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UPX!
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UPX!
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[firmy@Reverse]$ upx -d flag_pwnablekr
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Ultimate Packer for eXecutables
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Copyright (C) 1996 - 2017
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UPX 3.94 Markus Oberhumer, Laszlo Molnar & John Reiser May 12th 2017
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File size Ratio Format Name
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-------------------- ------ ----------- -----------
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883745 <- 335288 37.94% linux/amd64 flag_pwnablekr
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Unpacked 1 file.
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[firmy@Reverse]$ strings flag_pwnablekr | grep -i upx
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UPX...? sounds like a delivery service :)
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```
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#### xxd - xxd_crackme
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```text
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[firmy@Reverse]$ xxd -g1 xxd_crackme
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......
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00001020: 00 00 00 00 67 30 30 64 4a 30 42 21 00 00 00 00 ....g00dJ0B!....
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......
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```
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```text
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[firmy@Reverse]$ strings -d xxd_crackme
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......
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g00dJ0B!
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......
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```
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