adworld_misc_10

[TOC]

没几个能做的题目咱就是说…

Steganography

我萌吗

很无聊的题目…

flag{b25seSBjYXQgd2lsbCBkZWNvZGUgdGhpczIzMzMzMzM=}

benefit

题目有问题。别看了

RCTF{Caesar_tr3nsformation_s0_easy_fun1}

jpg

图片后面藏了rar，有密码。rockyou爆破出密码是123456.

解压得到文件先解base64，再把数据保存为二进制文件。

1
2
file bin
bin: DOS executable (COM), start instruction 0xe9560200 00558bec

扔进ida，注意选择MetaPC,32bit

dump出密文

1
43 5E 47 44 00 06 19 63 5F 52 17 53 52 54 58 53 52 17 51 42 59 54 43 5E 58 59 16 3D 05 19 40 58 45 53 0D 10 51 5B 56 50 10 00 7B 58 56 53 7B 5E 55 45 56 45 4E 76 00 70 52 43 67 45 58 54 76 53 53 45 52 44 44 00 42 44 52 45 04 05 00 7A 52 44 44 56 50 52 75 58 4F 76 00 50 58 58 53 17 7D 58 55 16 00 7F 56 5F 56 00 74 56 59 17 4E 58 42 17 51 5E 59 53 17 43 5F 52 17 51 56 5B 50 08 00 68 BE 11 40 00 E8 41 00 00 00 68 C3 11 40 00 E8 37 00 00 00 8D 8B C3 11 40 00 8D 83 BE 11 40 00 6A 00 50 51 6A 00 FF 93 BA 11 40 00 C3 51 5B 56 50 0A 58 45 4D 68 42 68 70 52 43 68 63 5F 52 19 74 07 73 04 68 71 06 77 0E 37 00 8B 44 24 04 03 C3 51 8A 08 EB 08 80 F1 37 88 08 40 8A 08 0A C9 75 F4 59 C2 04 00 E8 00 00 00 00 5B 81 EB A8 12 40 00 68 E8 11 40 00 E8 CF FF FF FF 68 F5 11 40 00 E8 C5 FF FF FF 68 0B 12 40 00 E8 BB FF FF FF 68 04 12 40 00 E8 B1 FF FF FF FF 34 24 E8 9E FD FF FF 0B C0 75 05 E9 A4 00 00 00 89 83 AA 11 40 00 8D 83 F5 11 40 00 50 FF B3 AA 11 40 00 E8 F7 FD FF FF 0B C0 75 05 E9 83 00 00 00 89 83 B2 11 40 00 8D 83 E8 11 40 00 50 FF B3 AA 11 40 00 FF 93 B2 11 40 00 89 83 B6 11 40 00 8D 83 04 12 40 00 50 FF 93 B6 11 40 00 89 83 AE 11 40 00 8D 83 0B 12 40 00 50 FF B3 AE 11 40 00 FF 93 B2 11 40 00 89 83 BA 11 40 00 68 21 12 40 00 E8 2A FF FF FF 68 26 12 40 00 E8 20 FF FF FF 8D 8B 26 12 40 00 8D 83 21 12 40 00 6A 24 50 51 6A 00 FF 93 BA 11 40 00 83 F8 06 75 01 C3 E8 B2 FE FF FF C3 E9 F4 4A F5 FF

异或0x37可得flag

RCTF{orz_u_Get_The.C0D3_F1@9}

Whisper

https://blog.csdn.net/2501_91013872/article/details/147916854

ZCTF{Nightingale}

联盟决策大会

少了一些背景信息噢

https://juejin.cn/post/7138730135906254861

DDCTF{5x3ROxvqF2SJrDdVy73IADA04PxdLLab}

玩具车

牛逼题目

**官方，方括号不改何意味啊？？？理解为眼瞎

flag[63177867_8a43_47ab_9048_298867128b3a]

流量分析

寻找入侵者

题目似乎有点问题。https://blog.csdn.net/qq_75023818/article/details/136409826

CISCN{4qgVp9ufsXMpODy2YZada27J1ZNLVjKmB}

Games

memory_forensics

memory_forensics1

CISCN{5dd47ce8c7d541739db27168c0ca5620}

解法不详…