【misc】[SDCTF 2022]Flag Trafficker --jsFuck代码

最新推荐文章于 2025-09-24 08:09:01 发布
原创 最新推荐文章于 2025-09-24 08:09:01 发布 · 575 阅读 · 0 ·
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#前端 #java #javascript #网络安全 #python

博客介绍了从附件流量包中获取Flag的方法。先使用Wireshark打开流量包，搜索字符串“flag”得到JSFuck代码。可通过在线网站JSFuck - 在线加解密运行代码获取Flag，也可保存为HTML文件在浏览器运行，最终得到Flag为sdctf{G3T_F*cK3d_W1r3SHaRK}。

附件下载下来是一个流量包，用wireshark打开该流量包，然后搜索字符串"flag",就会出现如下的jsfuck代码

右键onlick显示分组字节

可以看到很大一串的jsfuck代码，现在是需要运行这段代码，可利用在线网站运行：JSFuck - 在线加解密 (bugku.com)，运行完就是flag

还可以保存为html文件在浏览器运行：
<!DOCTYPE html> <html> <body> <button type="button" onclick="[][(![]+[])[+[]]+(![]+[])[!+[]+!+[]]+(![]+[])[+!+[]]+(!![]+[])[+[]]][([][(![]+[])[+[]]+(![]+[])[!+[]+!+[]]+(![]+[])[+!+[]]+(!![]+[])[+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+(![]+[])[!+[]+!+[]]+(![]+[])[+!+[]]+(!![]+[])[+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+(![]+[])[!+[]+!+[]]+(![]+[])[+!+[]]+(!![]+[])[+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+(![]+[])[!+[]+!+[]]+(![]+[])[+!+[]]+(!![]+[])[+[]]])[+!+[]+[+[]]]+(!![]+[])[+!+[]]]((!![]+[])[+!+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+([][[]]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+!+[]]+(+[![]]+[][(![]+[])[+[]]+(![]+[])[!+[]+!+[]]+(![]+[])[+!+[]]+(!![]+[])[+[]]])[+!+[]+[+!+[]]]+(!![]+[])[!+[]+!+[]+!+[]]+(+(!+[]+!+[]+!+[]+[+!+[]]))[(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+(![]+[])[!+[]+!+[]]+(![]+[])[+!+[]]+(!![]+[])[+[]]])[+!+[]+[+[]]]+([]+[])[([][(![]+[])[+[]]+(![]+[])[!+[]+!+[]]+(![]+[])[+!+[]]+(!![]+[])[+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+(![]+[])[!+[]+!+[]]+(![]+[])[+!+[]]+(!![]+[])[+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+(![]+[])[!+[]+!+[]]+(![]+[])[+!+[]]+(!![]+[])[+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+(![]+[])[!+[]+!+[]]+(![]+[])[+!+[]]+(!![]+[])[+[]]])[+!+[]+[+[]]]+(!![]+[])[+!+[]]][([][[]]+[])[+!+[]]+(![]+[])[+!+[]]+((+[])[([][(![]+[])[+[]]+(![]+[])[!+[]+!+[]]+(![]+[])[+!+[]]+(!![]+[])[+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+(![]+[])[!+[]+!+[]]+(![]+[])[+!+[]]+(!![]+[])[+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+(![]+[])[!+[]+!+[]]+(![]+[])[+!+[]]+(!![]+[])[+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+(![]+[])[!+[]+!+[]]+(![]+[])[+!+[]]+(!![]+[])[+[]]])[+!+[]+[+[]]]+(!![]+[])[+!+[]]]+[])[+!+[]+[+!+[]]]+(!![]+[])[!+[]+!+[]+!+[]]]](!+[]+!+[]+!+[]+[!+[]+!+[]])+(![]+[])[+!+[]]+(![]+[])[!+[]+!+[]])()([][(![]+[])[+[]]+(![]+[])[!+[]+!+[]]+(![]+[])[+!+[]]+(!![]+[])[+[]]][([][(![]+[])[+[]]+(![]+[])[!+[]+!+[]]+(![]+[])[+!+[]]+(!![]+[])[+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+(![]+[])[!+[]+!+[]]+(![]+[])[+!+[]]+(!![]+[])[+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+(![]+[])[!+[]+!+[]]+(![]+[])[+!+[]]+(!![]+[])[+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+(![]+[])[!+[]+!+[]]+(![]+[])[+!+[]]+(!![]+[])[+[]]])[+!+[]+[+[]]]+(!![]+[])[+!+[]]]((!![]+[])[+!+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+([][[]]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+!+[]]+([]+[])[(![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+(![]+[])[!+[]+!+[]]+(![]+[])[+!+[]]+(!![]+[])[+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(!![]+[])[+[]]+([][(![]+[])[+[]]+(![]+[])[!+[]+!+[]]+(![]+[])[+!+[]]+(!![]+[])[+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+(![]+[])[!+[]+!+[]]+(![]+[])[+!+[]]+(!![]+[])[+[]]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+(![]+[])[!+[]+!+[]]+(![]+[])[+!+[]]+(!![]+[])[+[]]])[+!+[]+[+[]]]+(!![]+[])[+!+[]]]()[+!+[]+[!+[]+!+[]]]+((![]+[])[+!+[]]+(![]+[])[!+[]+!+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]+(!![]+[])[+[]]+[+!+[]]+[!+[]+!+[]+!+[]+!+[]+!+[]+!+[]]+[!+[]+!+[]+!+[]+!+[]]+(!![]+[])[+[]]+[!+[]+!+[]+!+[]+!+[]+!+[]]+[+[]]+(!![]+[])[+[]]+[!+[]+!+[]+!+[]+!+[]]+[!+[]+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+([][[]]+[])[!+[]+!+[]]+(!![]+[])[+[]]+[+!+[]]+[!+[]+!+[]+!+[]+!+[]]+[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+[+!+[]]+[!+[]+!+[]+!+[]+!+[]+!+[]+!+[]]+[!+[]+!+[]+!+[]+!+[]]+(![]+[])[+[]]+(!![]+[])[+[]]+[+!+[]]+[!+[]+!+[]+!+[]+!+[]+!+[]+!+[]+!+[]]+[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+[+!+[]]+[+[]]+[!+[]+!+[]+!+[]+!+[]+!+[]+!+[]+!+[]]+[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+[+!+[]]+[!+[]+!+[]]+[!+[]+!+[]+!+[]+!+[]]+(!![]+[])[+[]]+[+!+[]]+[!+[]+!+[]+!+[]]+[!+[]+!+[]+!+[]+!+[]+!+[]+!+[]+!+[]]+(!![]+[])[+[]]+[+!+[]]+[+[]]+[!+[]+!+[]+!+[]+!+[]+!+[]+!+[]]+(!![]+[])[+[]]+[!+[]+!+[]+!+[]+!+[]+!+[]]+[!+[]+!+[]]+(!![]+[])[+[]]+[+!+[]]+[!+[]+!+[]+!+[]+!+[]]+[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+[+!+[]]+[+!+[]]+[!+[]+!+[]+!+[]]+[!+[]+!+[]+!+[]]+([][[]]+[])[!+[]+!+[]]+(!![]+[])[+[]]+[+!+[]]+[!+[]+!+[]+!+[]]+[!+[]+!+[]+!+[]+!+[]+!+[]+!+[]+!+[]]+(!![]+[])[+[]]+[+!+[]]+[!+[]+!+[]]+[!+[]+!+[]+!+[]+!+[]+!+[]+!+[]+!+[]]+[+!+[]]+(!![]+[])[+!+[]]+[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+[+!+[]]+[!+[]+!+[]]+[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+[+!+[]]+[+!+[]]+[+[]]+(![]+[])[+!+[]]+(!![]+[])[+[]]+[+!+[]]+[!+[]+!+[]]+[!+[]+!+[]]+(!![]+[])[+[]]+[+!+[]]+[+!+[]]+[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+[+!+[]]+[!+[]+!+[]+!+[]+!+[]+!+[]+!+[]+!+[]]+[!+[]+!+[]+!+[]+!+[]+!+[]]+(!![]+[])[+[]]+[!+[]+!+[]+!+[]+!+[]]+[!+[]+!+[]]+(!![]+[])[+[]]+[!+[]+!+[]+!+[]+!+[]+!+[]]+[+!+[]])[(![]+[])[!+[]+!+[]+!+[]]+(+(!+[]+!+[]+[+!+[]]+[+!+[]]))[(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+(![]+[])[!+[]+!+[]]+(![]+[])[+!+[]]+(!![]+[])[+[]]])[+!+[]+[+[]]]+([]+[])[([][(!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to display the flag!</button> </body> </html> 
flag:sdctf{G3T_F*cK3d_W1r3SHaRK}

GGb0mb
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6字符密码本：JSFuck如何用[]()!+编写任何JavaScript代码
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2022春秋杯-春季赛 勇者山峰 writeup（misc全部+web签到） 1 Capture Radiate Chart 1.rar提取 查看图片，发现每个IDAT块的crc值最后两位 2.pdf分析 对pdf的结构分析，其中有一个78 9C开头的stream数据段，应该是里面有一张图片，所以对pdf进行strings 根据上面这段对象内容属性 1) png文件头 2) IDAT段 way2 2 RecoverMe 3 PINTU 4 tiger 5 被带走的机密文件 6 签到 7 Mercy-code
深奥的JavaScriptJSFuck.zip
07-16
JSFuck 可以让你只用 6 个字符 []()! 来编写 JavaScript 程序。例如你想用 JSFuck 来实现 alert(1) 代码如下：[][(![] [])[ [[ []]]] ([][[]] [])[ [[! [] ! [] ! [] ! [] ! []]]] (![] [])[ [[! [] ! []]]] (!![] [])[ [[ []]]] (!![] [])[ [[! [] ! [] ! []]]] (!![] [])[ [[ ! []]]]][([][(![] [])[ [[ []]]] ([][[]] [])[ [[! [] ! [] ! [] ! [] ! []]]] (![] [])[ [[! [] ! []]]] (!![] [])[ [[ []]]] (!![] [])[ [[! [] ! [] ! []]]] (!![] [])[ [[ ! []]]]] [])[ [[! [] ! [] ! []]]] ([][(![] [])[ [[ []]]] ([][[]] [])[ [[! [] ! [] ! [] ! [] ! []]]] (![] [])[ [[! [] ! []]]] (!![] [])[ [[ []]]] (!![] [])[ [[! [] ! [] ! []]]] (!![] [])[ [[ ! []]]]] [])[ [[! [] ! [] ! [] ! [] ! [] ! []]]] ([][[]] [])[ [[ ! []]]] (![] [])[ [[! [] ! [] ! []]]] (!![] [])[ [[ []]]] (!![] [])[ [[ ! []]]] ([][[]] [])[ [[ []]]] ([][(![] [])[ [[ []]]] ([][[]] [])[ [[! [] ! [] ! [] ! [] ! []]]] (![] [])[ [[! [] ! []]]] (!![] [])[ [[ []]]] (!![] [])[ [[! [] ! [] ! []]]] (!![] [])[ [[ ! []]]]] [])[ [[! [] ! [] ! []]]] (!![] [])[ [[ []]]] ([][(![] [])[ [[ []]]] ([][[]] [])[ [[! [] ! [] ! [] ! [] ! []]]] (![] [])[ [[! [] ! []]]] (!![] [])[ [[ []]]] (!![] [])[ [[! [] ! [] ! []]]] (!![] [])[ [[ ! []]]]] [])[ [[! [] ! [] ! [] ! [] ! [] ! []]]] (!![] [])[ [[ ! []]]]]((![] [])[ [[ ! []]]] (![] [])[ [[! [] ! []]]] (!![] [])[ [[! [] ! [] ! []]]] (!![] [])[ [[ ! []]]] (!![] [])[ [[ []]]] ([][(![] [])[ [[ []]]] ([][[]] [])[ [[! [] ! [] ! [] ! [] ! []]]] (![] [])[ [[! [] ! []]]] (!![] [])[ [[ []]]] (!![] [])[ [[! [] ! [] ! []]]] (!![] [])[ [[ ! []]]]] [])[ [[ ! []]] [[! [] ! [] ! [] ! [] ! []]]] [ ! []] ([][(![] [])[ [[ []]]] ([][[]] [])[ [[! [] ! [] ! [] ! [] ! []]]] (![] [])[ [[! [] ! []]]] (!![] [])[ [[ []]]] (!![] [])[ [[! [] ! [] ! []]]] (!![] [])[ [[ ! []]]]] [])[ [[ ! []]] [[! [] ! [] ! [] ! [] ! [] ! []]]])()其他一些基本的表达：false       =>  ![]true        =>  !![]undefined   =>  [][[]]NaN         =>   [![]]0           =>   []1           =>   ! []2           =>  ! [] ! []10          =>  [ ! []] [ []]Array       =>  []Number      =>   []String      =>  [] []Boolean     =>  ![]Function    =>  []["filter"]eval        =>  []["filter"]["constructor"]( CODE )()window      =>  []["filter"]["constructor"]("return this")() 标签：JSFuck
2022-ISCC信息安全与对抗竞赛wp-misc(详解，有脚本( •̀ ω •́ )y)
路baby的博客
04-17 5916
没想到不知不觉一年时间就这样过去了，又到了一年一度的ISCC信息对抗大赛，不知道去年打比赛的小伙伴今年还能不能再碰到，期待与君再相见( •̀ ω •́ )y所以今天就把去年的题目再复现一遍供师傅们参考 嘻嘻目录前言misc（1）2022冬奥会（2）单板小将苏翊鸣（3）隐秘的信息（4）降维打击（5）藏在星空中的诗-1（6）藏在星空中的诗-2（7）真相只有一个（8）小光学AI（9）套中套flag2flag1flag3加油各位( •̀ ω •́ )y 期待与君再相逢。
MISC杂项 [SDCTF 2022]Flag Trafficker 题解
weixin_73904941的博客
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MISC杂项 [SDCTF 2022]Flag Trafficker 题解
NSS [SDCTF 2022]Apollo 1337
Jay17的博客
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NSS [SDCTF 2022]Apollo 1337
JavaScript学习：JSFuck代码阅读笔记
02-06 706
JSFuck源码地址（GitHub）：https://github.com/aemkei/jsfuck JSFuck在OSC上的介绍页面：http://www.oschina.net/p/jsfuck JSFuck可以将JavaScript代码进行转换，转换后的代码只使用6个字符（[，]，...
Jsfuck——一个很有意思的Javascript特（附i春秋 broken wp）
weixin_45253216的博客
01-16 1039
简介 WP在后面 jsfuck源于一门编程语言brainfuck，其主要的思想就是只使用8种特定的符号来编写代码。而jsfuck也是沿用了这个思想，它仅仅使用6种符号来编写代码。它们分别是(、)、+、[、]、!。 演示 [][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]][([][(![]+[])[+[]]+([![
JSFuck —— 直接让你崩溃的 JavaScript 脚本
weixin_34248118的博客
06-05 2568
JSFuck 可以让你只用 6 个字符 []()!+ 来编写 JavaScript 程序。 例如你想用 JSFuck 来实现 alert(1) 代码如下： [][(![]+[])[+[[+[]]]]+([][[]]+[])[+[[!+[]+!+[]+!+[]+!+[]+!+[]]]]+(![]+[])[+[[!+[]+!+[]]]]+(!![]+[])[...
攻防世界misc Test-flag-please-ignore
10-02
攻防世界的misc题目Test-flag-please-ignore是一道杂项题目。对于这道题目，你可以参考提供的解题博客来了解详细的解题方法。根据引用和引用的内容，我们可以找到这道题目的flag是"flag{DugUpADiamondADeepDarkMine}"和"flag{hello_world}"。至于进一步的
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