Деобфускация кода PHP

PhpAndroid88 · 18 сен 2020

Всем привет.

В универе задали разобрать код и объяснить как это всё работает.
Код:

PHP:

<?

$__=$_[$_[]++].=$_;$_[!_]+=++$_[!_];@$$_=($_[$$_][$_]&$_[$$_][$_[!_]]).$_[$$_][$_];

$_[]=&$$_;@$$_.=$_[!!_][$__]^$__[$_[!_]]|$__[!_];$___=$__[!_]|_&~$__[!!_];

@$$_.=++$___.($__[$_]^_^$__[$_[!_]]).($_[!!_][!$_]^$_[_==_][$_[!_]>>!!_]^_);

$___&=$__[$_[!_]];$___.=${$_}[!_]^${$_}[$_[!_]]|$__[!_].($$$_=$__[!_]^_^$__[!!_]).

$$$_.($_[_]=$__[$_[!_]]^_^${$_}[$_[!_]>>!!_]);$$_($___.

(~${$_}[~-$_[!_]]&$___[$_[!_]]).($_[_]&~$___[!!_]));

Источник

Получилось только разобраться что $_, $__, $__ — это отдельные переменные в PHP. @—вывод без ошибок.

Может кто помочь с этим?

mkramer · 18 сен 2020

Любят же такие бесполезные задания давать. Да, если разное количество чёрточек, то разные переменные. А дальше - ну на знание. Я смотрю, тут переменные переменных и т.п. имеются

MouseZver · 18 сен 2020

Любят синтаксис ломать

PHP:

 

Notice: Undefined variable: _ in [...][...] on line 2 

 

Notice: Undefined index: in [...][...] on line 2 

 

Notice: Array to string conversion in [...][...] on line 2 

 

Warning: Use of undefined constant _ - assumed '_' (this will throw an Error in a future version of PHP) in [...][...] on line 2 

 

Warning: Use of undefined constant _ - assumed '_' (this will throw an Error in a future version of PHP) in [...][...] on line 2 

 

Notice: Array to string conversion in [...][...] on line 3 

 

Warning: Use of undefined constant _ - assumed '_' (this will throw an Error in a future version of PHP) in [...][...] on line 3 

 

Notice: String offset cast occurred in [...][...] on line 3 

 

Warning: Use of undefined constant _ - assumed '_' (this will throw an Error in a future version of PHP) in [...][...] on line 3 

 

Warning: Use of undefined constant _ - assumed '_' (this will throw an Error in a future version of PHP) in [...][...] on line 3 

 

Notice: String offset cast occurred in [...][...] on line 3 

 

Warning: Use of undefined constant _ - assumed '_' (this will throw an Error in a future version of PHP) in [...][...] on line 5 

 

Warning: Use of undefined constant _ - assumed '_' (this will throw an Error in a future version of PHP) in [...][...] on line 5 

 

Notice: Array to string conversion in [...][...] on line 5 

 

Notice: String offset cast occurred in [...][...] on line 5 

 

Warning: Use of undefined constant _ - assumed '_' (this will throw an Error in a future version of PHP) in [...][...] on line 5 

 

Notice: Array to string conversion in [...][...] on line 5 

 

Warning: Use of undefined constant _ - assumed '_' (this will throw an Error in a future version of PHP) in [...][...] on line 5 

 

Notice: String offset cast occurred in [...][...] on line 5 

 

Notice: Array to string conversion in [...][...] on line 5 

 

Warning: Use of undefined constant _ - assumed '_' (this will throw an Error in a future version of PHP) in [...][...] on line 5 

 

Notice: String offset cast occurred in [...][...] on line 5 

 

Warning: Use of undefined constant _ - assumed '_' (this will throw an Error in a future version of PHP) in [...][...] on line 5 

 

Warning: Use of undefined constant _ - assumed '_' (this will throw an Error in a future version of PHP) in [...][...] on line 5 

 

Notice: String offset cast occurred in [...][...] on line 5 

 

Notice: Array to string conversion in [...][...] on line 6 

 

Warning: Use of undefined constant _ - assumed '_' (this will throw an Error in a future version of PHP) in [...][...] on line 6 

 

Warning: Use of undefined constant _ - assumed '_' (this will throw an Error in a future version of PHP) in [...][...] on line 6 

 

Warning: Use of undefined constant _ - assumed '_' (this will throw an Error in a future version of PHP) in [...][...] on line 6 

 

Warning: Use of undefined constant _ - assumed '_' (this will throw an Error in a future version of PHP) in [...][...] on line 6 

 

Warning: Use of undefined constant _ - assumed '_' (this will throw an Error in a future version of PHP) in [...][...] on line 6 

 

Notice: Array to string conversion in [...][...] on line 6 

 

Notice: Array to string conversion in [...][...] on line 6 

 

Warning: Use of undefined constant _ - assumed '_' (this will throw an Error in a future version of PHP) in [...][...] on line 7 

 

Notice: Array to string conversion in [...][...] on line 7 

 

Warning: Use of undefined constant _ - assumed '_' (this will throw an Error in a future version of PHP) in [...][...] on line 7 

 

Warning: Use of undefined constant _ - assumed '_' (this will throw an Error in a future version of PHP) in [...][...] on line 7 

 

Warning: Use of undefined constant _ - assumed '_' (this will throw an Error in a future version of PHP) in [...][...] on line 7 

 

Notice: String offset cast occurred in [...][...] on line 7 

Hello!

Hello!
--- Добавлено ---

PhpAndroid88 сказал(а): ↑

В универе задали разобрать код и объяснить как это всё работает.
Нажмите, чтобы раскрыть...

ГореПреподы...

PhpAndroid88 · 18 сен 2020

MouseZver сказал(а): ↑

Любят синтаксис ломать

PHP:

 

Notice: Undefined variable: _ in [...][...] on line 2 

 

Notice: Undefined index: in [...][...] on line 2 

 

Notice: Array to string conversion in [...][...] on line 2 

 

Warning: Use of undefined constant _ - assumed '_' (this will throw an Error in a future version of PHP) in [...][...] on line 2 

 

Warning: Use of undefined constant _ - assumed '_' (this will throw an Error in a future version of PHP) in [...][...] on line 2 

 

Notice: Array to string conversion in [...][...] on line 3 

 

Warning: Use of undefined constant _ - assumed '_' (this will throw an Error in a future version of PHP) in [...][...] on line 3 

 

Notice: String offset cast occurred in [...][...] on line 3 

 

Warning: Use of undefined constant _ - assumed '_' (this will throw an Error in a future version of PHP) in [...][...] on line 3 

 

Warning: Use of undefined constant _ - assumed '_' (this will throw an Error in a future version of PHP) in [...][...] on line 3 

 

Notice: String offset cast occurred in [...][...] on line 3 

 

Warning: Use of undefined constant _ - assumed '_' (this will throw an Error in a future version of PHP) in [...][...] on line 5 

 

Warning: Use of undefined constant _ - assumed '_' (this will throw an Error in a future version of PHP) in [...][...] on line 5 

 

Notice: Array to string conversion in [...][...] on line 5 

 

Notice: String offset cast occurred in [...][...] on line 5 

 

Warning: Use of undefined constant _ - assumed '_' (this will throw an Error in a future version of PHP) in [...][...] on line 5 

 

Notice: Array to string conversion in [...][...] on line 5 

 

Warning: Use of undefined constant _ - assumed '_' (this will throw an Error in a future version of PHP) in [...][...] on line 5 

 

Notice: String offset cast occurred in [...][...] on line 5 

 

Notice: Array to string conversion in [...][...] on line 5 

 

Warning: Use of undefined constant _ - assumed '_' (this will throw an Error in a future version of PHP) in [...][...] on line 5 

 

Notice: String offset cast occurred in [...][...] on line 5 

 

Warning: Use of undefined constant _ - assumed '_' (this will throw an Error in a future version of PHP) in [...][...] on line 5 

 

Warning: Use of undefined constant _ - assumed '_' (this will throw an Error in a future version of PHP) in [...][...] on line 5 

 

Notice: String offset cast occurred in [...][...] on line 5 

 

Notice: Array to string conversion in [...][...] on line 6 

 

Warning: Use of undefined constant _ - assumed '_' (this will throw an Error in a future version of PHP) in [...][...] on line 6 

 

Warning: Use of undefined constant _ - assumed '_' (this will throw an Error in a future version of PHP) in [...][...] on line 6 

 

Warning: Use of undefined constant _ - assumed '_' (this will throw an Error in a future version of PHP) in [...][...] on line 6 

 

Warning: Use of undefined constant _ - assumed '_' (this will throw an Error in a future version of PHP) in [...][...] on line 6 

 

Warning: Use of undefined constant _ - assumed '_' (this will throw an Error in a future version of PHP) in [...][...] on line 6 

 

Notice: Array to string conversion in [...][...] on line 6 

 

Notice: Array to string conversion in [...][...] on line 6 

 

Warning: Use of undefined constant _ - assumed '_' (this will throw an Error in a future version of PHP) in [...][...] on line 7 

 

Notice: Array to string conversion in [...][...] on line 7 

 

Warning: Use of undefined constant _ - assumed '_' (this will throw an Error in a future version of PHP) in [...][...] on line 7 

 

Warning: Use of undefined constant _ - assumed '_' (this will throw an Error in a future version of PHP) in [...][...] on line 7 

 

Warning: Use of undefined constant _ - assumed '_' (this will throw an Error in a future version of PHP) in [...][...] on line 7 

 

Notice: String offset cast occurred in [...][...] on line 7 

Hello!

Hello!
--- Добавлено ---

ГореПреподы...
Нажмите, чтобы раскрыть...

Ну это да, нерабочий скрипт, да ещё и надо его разобрать и по полочкам разложить...

Artur_hopf · 19 сен 2020

@PhpAndroid88 да рабочий код, читается как препод хочет денег с тебя.

Деобфускация кода PHP

PhpAndroid88 Новичок

mkramer Суперстар
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MouseZver Суперстар

PhpAndroid88 Новичок

Artur_hopf Старожил

Быстрый поиск

Деобфускация кода PHP

PhpAndroid88 Новичок

mkramer Суперстар Команда форума Модератор

MouseZver Суперстар

PhpAndroid88 Новичок

Artur_hopf Старожил

mkramer Суперстар
Команда форума Модератор