2020 i春秋新春战疫公益赛 misc
code_in_morse
morse decode后得到:
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==
b32 docode后,出现png和IHDR、IDAT一堆乱码
python ba32.py > 111.png
扫描条形码,之后得到:
https://s2.ax1x.com/2020/02/06/1yPXJ1.jpg
jpg图片,在HxD,发现F5,F5隐写
java Extract 1yPXJ1.jpg
神器地址:https://gchq.github.io/CyberChef/
easyupload
上传一句话木马,连接蚁剑,/readflag
funnygame
扫雷.png有压缩包,修复后,aes decode,关键就是找password了
python stegosaurus.py -x mineblock.cpython-36.pyc
在线aes decode
一大串16进制->HxD,发现几个PK都逆序了,用脚本处理
au->效果->反向(时间)
参考链接:https://github.com/AngelKitty/stegosaurus
套娃
1.txt
ook decode后:
dcaf03aa88d038686c5e8067a7a45ff8
能解开2.zip
2.连环画.jpeg里flag是假的
爆破3.zip.3302
4.zip伪加密
5.zip明文攻击
1.png最后:part1:068c
2.jpeg注释:part2:555b
3.连环画.png:stegsolve:part:578b
4.连环画.png:改高:part4:0eae
5.剧情.txt提示了猪圈:fojiajielv
6.txt:与佛论禅:amtf12345
7.png:银河字母:yinhezm,解出8.zip
8剧情.txt提示了32位
6.连环画.jpg:morse decode:PART6:E52BD67(小写)
7连环画.gif:
ubuntu下使用identify命令,查看每帧停顿的时间
identify -format “%T” 7连环画.gif
10换成0,20换成1
0111000001100001011100100111010000110111001110100011011000110001001101010011011000110010
part7:61562
5.连环画:99拼图,按时间递增,拉成99,不拼的话也能看出来
part5:9d4b
连起来:068c555b578b0eae9d4be52bd6761562
NF提示的很明显
用ntfsstream扫描隐藏的文件。
磁盘套娃(复现失败)
题目链接:https://pan.baidu.com/s/1HKl3bLQNOP9mL1cuLMhjMg
提取码:py7l
用DiskGenius工具扒拉出easy_disk,type is dada,卡住,不会了
磁盘解密嘛,在freebuf搜到X-Ways Forensic工具
1、将vhd文件拖进去后发现NTFS分区
2、
Dekart Private Disk是一款虚拟磁盘加密软件,运行后电脑中会多出一个虚拟磁盘,用户可以把重要的文件存放到这个磁盘中,需要密码才能打开
3、使用dekpart private disk软件连接easy_disk提示需要密码
(下载软件时,注意路径都在英文下)
4、最大的文件\(Extend->\)UsnJrl->\(J元文件(为什么是它呢,goole一番),导出\)J文件(右键->查看器->Internet Explorer)
使用UsnJrnl2Csv工具分析$J
5、在新建文本文档.txt后,即刻有新的txt,文件名即为easy_disk password
6、到这步,报错....,卡了一天,复现失败
关闭防火墙,可以了(此处感谢几位师傅)
解密easy_disk时,提示加密容器格式化有问题,点击取消(点格式化磁盘后,z盘下的数据就清空了,坑啊,重新提取一遍)
官方wp:https://github.com/chunqiugame/cqb_writeups
夏风师傅题解:https://blog.xiafeng2333.top/ctf-23/