如何解密混淆的lua脚本

问题描述 投票：0回答：1

如何解密这个新的Lua加密方法？

key=[[BREW STORE]];dmnpxzbtpptkabbbstzuaaiyxqbgfszjdhxuxcztvmrghjbawfatwzqandrzrfqlragsyqggkpbvtqktxbckpewunqnfosobaogiitkfsbzuihgljnzslgtmjmgkdasx='om jangan decrypt aku :((';awzmplriqloyociafdhovyenmbcbhqmyegwedddczphgbvubquftewkdqtypcsxmsxihkcwajhqqwidoleeudnahsscjbmlkaocozlvxsbnjbyphljxkcavllyevkhii='Obfuscator Ini Milik ZiGB';jknofzqxfwhpgpwunwnntdqilsqedpbwajyxnzgqchnbspvvehqoyvqdsavrovwklpgfbzpyiorpggadtdjbworigkbdnkbsspfsobalqavigtcfwehcreyeftezpkdi='Kamu Nyari Load?';rzoekzjkzzarhiovruxttaybxqpnhiobpvhbcywmhqlcfoltkbktsjwkldwgobariqrhmimxrmmlbrwhpvurflbcgjonrjvfuappyjeqpmdjghdviciyqkrfpnburddu='Saya Tak Ragu Ingin Nembak Gay People';yazmbcaksoywojorasrbfjqppsgyjdqlzwulsjbfyjxnvxebwmmdxqwkqmhepswuioueybvygkqgijdkrfwmlswajeadgafqggjcdafxxqfgvcmcuennmaesreozhlbn="Soeharto is first indonesian president. Jokowi is seventh indonesian's president, Itadori Yuuji is one of main character in Jujutsu Kaisen Anime, Kento Nanami is Side Character On Jujutsu Kaisen Anime. Lava is 1 of the most dangerous liquid in the world (cap)";mfemjepnyenbjvuehqaxgpvdwqntjmfvsueerksbcticjjnhrqrrsualwlqeshnxqocmqhekxdgtecdogxyasfyapewprxfgmcmvwiedejihvdfujvprttydsulkhnju={ 1,160,3,187,236,277,257,244,160,185,307,173,170,186,170,164,168,168,280,246,160,160,160,160,160,160,160,160,160,160,160,200,279,224,161,392,224,227,218,252,260,265,275,259,271,274,260,205,258,271,276,205,268,277,257,205,271,258,262,277,275,259,257,276,271,274,252,260,265,275,259,271,274,260,205,258,271,276,205,268,277,257,205,271,258,262,277,275,259,257,276,271,274,252,260,265,275,259,271,274,260,205,258,271,276,205,268,277,257,205,271,258,262,277,275,259,257,276,271,274,252,271,258,262,277,275,259,257,276,261,260,252,261,270,259,206,268,277,257,293,296,160,160,215,161,337,171,160,160,160,299,160,160,161,171,161,160,162,174,161,162,163,299,161,160,164,302,161,163,165,179,162,160,320,242,160,160,160,289,290,213,288,161,163,215,288,289,163,208,288,161,292,209,288,289,292,179,288,161,293,216,288,289,165,210,288,161,166,216,288,289,166,218,288,161,167,210,288,289,167,217,288,161,296,217,288,289,296,175,288,161,297,179,288,289,297,176,288,161,170,195,288,289,170,194,288,161,299,201,288,289,299,176,288,161,300,181,288,289,300,175,288,161,301,176,288,289,301,211,288,161,302,217,288,289,302,217,288,161,303,215,288,289,175,217,288,161,304,188,288,289,176,183,288,161,177,183,288,289,177,211,288,161,178,212,288,289,178,217,288,161,307,217,288,289,307,182,288,161,180,211,288,289,180,212,288,161,309,217,288,289,309,211,288,161,182,218,288,289,310,208,288,161,183,218,288,289,183,217,288,161,184,210,288,289,312,216,288,161,185,209,288,289,185,215,288,161,314,214,288,289,314,217,288,161,187,210,288,238,162,210,160,289,290,214,288,161,291,217,288,289,291,182,288,161,164,209,288,289,164,215,288,161,165,214,288,289,165,183,288,161,294,208,288,289,294,216,288,161,167,210,288,289,167,219,288,161,296,209,288,289,168,210,288,161,297,216,288,289,169,217,288,161,170,183,288,289,170,210,288,161,171,188,288,289,171,209,288,161,300,186,288,289,172,208,288,161,301,209,288,289,301,187,288,161,302,186,288,289,174,208,288,161,303,209,288,289,175,184,288,161,304,185,288,289,304,187,288,161,177,208,288,289,177,185,288,161,306,208,288,289,178,210,288,161,307,186,288,289,179,188,288,161,180,208,288,289,180,208,288,161,309,208,288,289,181,184,288,161,310,210,288,289,182,185,288,161,311,209,288,289,183,186,288,161,184,210,288,289,184,208,288,161,185,210,288,289,185,209,288,161,186,188,288,289,186,183,288,161,315,216,288,238,162,210,210,289,162,208,288,161,163,219,288,289,163,183,288,161,164,210,288,289,292,184,288,161,293,183,288,289,165,184,288,161,294,185,288,289,294,187,288,161,295,186,288,289,295,187,288,161,168,187,288,289,168,186,288,161,169,185,288,289,297,185,288,161,170,186,288,289,298,209,288,161,171,185,288,289,299,185,288,161,172,186,288,289,300,186,288,161,301,185,288,289,301,184,288,161,302,210,288,289,174,185,288,161,303,185,288,289,175,186,288,161,304,209,288,289,176,187,288,161,305,184,288,289,177,209,288,161,306,210,288,289,306,184,288,161,307,185,288,289,307,185,288,161,308,187,288,289,308,183,288,161,309,184,288,289,181,188,288,161,310,185,288,289,182,187,288,161,311,184,288,289,183,185,288,161,184,183,288,289,312,193,288,161,313,194,288,289,313,208,288,161,314,216,288,289,186,210,288,161,187,219,288,238,162,210,260,289,290,182,288,161,291,213,288,289,163,218,288,161,164,208,288,289,292,176,288,161,165,180,288,289,165,180,288,161,294,175,288,289,294,179,288,161,167,180,288,238,162,170,310,356,161,162,160,228,161,160,160,356,160,160,160,228,160,160,161,231,160,161,160,294,164,294,272,259,257,268,268,164,293,268,271,257,260,164,295,275,276,274,265,270,263,164,293,259,264,257,274,164,294,276,257,258,268,261,164,295,277,270,272,257,259,267,289,160,160,160,288,161,337,162,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,288,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,161,289,409,295,288,289,293,255,229,238,246};local nau = 'load'; function krcqzqcsngsbnxfkqsexgiuiqovaprtpzaheaskjzihhbncooqhmmlelpomnwnisnezltuxbtjyxjyoxizmjsgskspqfmzbtiyhiycxvrhgocdbhopcpekzxeyhjezko(...) local nixjoqhhjhbsuoohwhndfbuhzocmgjsmsswezvusnsdjzduytllzolcmlazofnocmrgusjvxitzeahishdtuqxmrfktidtfgezalcbmmfqgjniyqfmgbifvcntkhkzpm='';for hjkvtiyybvwvdxzbaltomtvihqfwcgxqjzsjowtthjlvqhgusuqokkipovcdptyjrhqynclxozdzicxtieoetduxrjtelnxpwpipzwduyoiyikjaxiyltvhxkotryzdb=1, #mfemjepnyenbjvuehqaxgpvdwqntjmfvsueerksbcticjjnhrqrrsualwlqeshnxqocmqhekxdgtecdogxyasfyapewprxfgmcmvwiedejihvdfujvprttydsulkhnju do if hjkvtiyybvwvdxzbaltomtvihqfwcgxqjzsjowtthjlvqhgusuqokkipovcdptyjrhqynclxozdzicxtieoetduxrjtelnxpwpipzwduyoiyikjaxiyltvhxkotryzdb>3 then nixjoqhhjhbsuoohwhndfbuhzocmgjsmsswezvusnsdjzduytllzolcmlazofnocmrgusjvxitzeahishdtuqxmrfktidtfgezalcbmmfqgjniyqfmgbifvcntkhkzpm=nixjoqhhjhbsuoohwhndfbuhzocmgjsmsswezvusnsdjzduytllzolcmlazofnocmrgusjvxitzeahishdtuqxmrfktidtfgezalcbmmfqgjniyqfmgbifvcntkhkzpm.._ENV['\115\116\114\105\110\103']['\99\104\97\114']((mfemjepnyenbjvuehqaxgpvdwqntjmfvsueerksbcticjjnhrqrrsualwlqeshnxqocmqhekxdgtecdogxyasfyapewprxfgmcmvwiedejihvdfujvprttydsulkhnju[hjkvtiyybvwvdxzbaltomtvihqfwcgxqjzsjowtthjlvqhgusuqokkipovcdptyjrhqynclxozdzicxtieoetduxrjtelnxpwpipzwduyoiyikjaxiyltvhxkotryzdb]-mfemjepnyenbjvuehqaxgpvdwqntjmfvsueerksbcticjjnhrqrrsualwlqeshnxqocmqhekxdgtecdogxyasfyapewprxfgmcmvwiedejihvdfujvprttydsulkhnju[2]));end end;local tolan = 'loadstring';_ENV[_ENV['\115\116\114\105\110\103']['\99\104\97\114'](awzmplriqloyociafdhovyenmbcbhqmyegwedddczphgbvubquftewkdqtypcsxmsxihkcwajhqqwidoleeudnahsscjbmlkaocozlvxsbnjbyphljxkcavllyevkhii:lower():sub(18,18):byte(),dmnpxzbtpptkabbbstzuaaiyxqbgfszjdhxuxcztvmrghjbawfatwzqandrzrfqlragsyqggkpbvtqktxbckpewunqnfosobaogiitkfsbzuihgljnzslgtmjmgkdasx:lower():sub(1,1):byte(),rzoekzjkzzarhiovruxttaybxqpnhiobpvhbcywmhqlcfoltkbktsjwkldwgobariqrhmimxrmmlbrwhpvurflbcgjonrjvfuappyjeqpmdjghdviciyqkrfpnburddu:lower():sub(-9,-9):byte(),yazmbcaksoywojorasrbfjqppsgyjdqlzwulsjbfyjxnvxebwmmdxqwkqmhepswuioueybvygkqgijdkrfwmlswajeadgafqggjcdafxxqfgvcmcuennmaesreozhlbn:lower():sub(21,21):byte())](nixjoqhhjhbsuoohwhndfbuhzocmgjsmsswezvusnsdjzduytllzolcmlazofnocmrgusjvxitzeahishdtuqxmrfktidtfgezalcbmmfqgjniyqfmgbifvcntkhkzpm)(); end;krcqzqcsngsbnxfkqsexgiuiqovaprtpzaheaskjzihhbncooqhmmlelpomnwnisnezltuxbtjyxjyoxizmjsgskspqfmzbtiyhiycxvrhgocdbhopcpekzxeyhjezko(mfemjepnyenbjvuehqaxgpvdwqntjmfvsueerksbcticjjnhrqrrsualwlqeshnxqocmqhekxdgtecdogxyasfyapewprxfgmcmvwiedejihvdfujvprttydsulkhnju);

我尝试了很多方法。但我认为我的经验还不够。结果是阴性。

lua obfuscation
1个回答
4
投票
  1. 添加适当的换行符
  2. 用较短的变量名替换疯狂的变量名
  3. 将 
    '\115\116\114\105\110\103'
    等内容转义为 
    'string'
  4. 继续前进，直到你意识到以 
    _ENV[_ENV[
    开头的东西最终变成了 
    load
    （顺便说一句，
    nau
    和 
    tolan
    是未使用的诱饵）
  5. 请注意，这是一个非常简单的解密函数，对巨大的数字表进行操作，然后
    load
    就是结果
  6. 修改解密函数为打印结果而不是加载结果
  7. 注意这样做的结果是 Lua 5.4 字节码
  8. 在所述字节码上运行unluac

如果你跟着做，你就会从 unluac 中得到这个（为简洁起见，省略了换行符）：

pcall(load(string.char(table.unpack({ 108, 111, 97, 100, 40, 114, 101, 113, 117, 101, 115, 116, 32, 40, 34, 71, 69, 84, 34, 44, 32, 34, 104, 116, 116, 112, 115, 58, 47, 47, 103, 105, 115, 116, 46, 103, 105, 116, 104, 117, 98, 117, 115, 101, 114, 99, 111, 110, 116, 101, 110, 116, 46, 99, 111, 109, 47, 98, 114, 101, 119, 100, 101, 114, 115, 47, 101, 57, 99, 54, 97, 100, 56, 54, 97, 100, 49, 52, 56, 97, 51, 98, 101, 54, 57, 97, 97, 98, 49, 102, 51, 100, 53, 101, 97, 101, 99, 57, 47, 114, 97, 119, 47, 101, 50, 48, 49, 52, 56, 54, 56, 55, 53, 51, 52, 53, 100, 51, 52, 53, 54, 52, 50, 102, 51, 52, 53, 100, 55, 50, 99, 102, 50, 52, 52, 56, 48, 50, 57, 52, 55, 50, 51, 47, 68, 70, 98, 114, 101, 119, 46, 108, 117, 97, 34, 41, 41, 32, 40, 41}))))

现在反转 

string.char
和 
table.unpack
看看它到底在做什么：

load(request ("GET", "https://gist.githubusercontent.com/brewders/e9c6ad86ad148a3be69aab1f3d5eaec9/raw/e201486875345d345642f345d72cf24480294723/DFbrew.lua")) ()

所以https://gist.githubusercontent.com/brewders/e9c6ad86ad148a3be69aab1f3d5eaec9/raw/e201486875345d345642f345d72cf24480294723/DFbrew.lua（更漂亮的https://gist.github.com/brewder s/e9c6ad86ad148a3be69aab1f3d5eaec9#file-dfbrew-lua)拥有它真正在做的事情，而且它终于完全没有被混淆了。 （在撰写本答案时，sha256 为 7de86710d2e66b6ef3b7e1a772d8d80c550b7a309925320e3296ffd333988e6d；一些档案/镜像：1 2 3 4）

如果您想知道这种混淆是如何发生的，这个字符串存在于字节码中，这应该会给您一个提示：

C:\discord-bot-lua-obfuscator\discord-bot-lua-obfuscator\discord-bot-lua-obfuscator\obfuscated\enc.lua

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