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fix: ntoken 'translate2' function not being parsed

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LuanRT
2022-01-30 20:26:02 -03:00
parent 3b48de20dd
commit 222bf1e61f
2 changed files with 7 additions and 7 deletions
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4
lib/Constants.js
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@@ -112,7 +112,7 @@ module.exports = {
NORMAL: 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_'.split(''),
REVERSE: '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-_'.split('')
},
FUNCS_REGEX: /d\.push\(e\)|d\.reverse\(\)|d\[0\]\)\[0\]\)|f=d\[0];d\[0\]|d\.length;d\.splice\(e,1\)|function\(\){for\(var|function\(d,e,f\){var h=f|function\(d\){for\(var|reverse\(\)\.forEach|unshift\(d\.pop\(\)\)|function\(d,e\){for\(var f/,
FUNCS_REGEX: /d\.push\(e\)|d\.reverse\(\)|d\[0\]\)\[0\]\)|f=d\[0];d\[0\]|d\.length;d\.splice\(e,1\)|function\(\){for\(var|function\(d,e,f\){var k=f|function\(d\){for\(var|reverse\(\)\.forEach|unshift\(d\.pop\(\)\)|function\(d,e\){for\(var f/,
FUNCS: {
PUSH: 'd.push(e)',
REVERSE_1: 'd.reverse()',
@@ -124,7 +124,7 @@ module.exports = {
ROTATE_2: 'unshift(d.pop())',
BASE64_DIA: 'function(){for(var',
TRANSLATE_1: 'function(d,e){for(var f',
TRANSLATE_2: 'function(d,e,f){var h=f'
TRANSLATE_2: 'function(d,e,f){var k=f'
},
// Just a helper function, felt like Utils.js wasn't the right place for it:
formatNTransformData: (data) => {

10
lib/NToken.js
View File

@@ -47,8 +47,8 @@ class NToken {
// Parses and emulates calls to the functions of the transformations array
const transformation_calls = [...Utils.getStringBetweenStrings(this.raw_code.replace(/\n/g, ''), 'try{', '}catch')
.matchAll(this.transformation_calls_regex)].map((params) => ({ index: params[1], params: params[2] }));
.matchAll(this.transformation_calls_regex)].map((params) => ({ index: params[1], params: params[2] }));
transformation_calls.forEach((data) => {
const param_index = data.params.split(',').map((param) => param.match(/c\[(.*?)\]/)[1]);
const base64_dia = (param_index[2] && transformations[param_index[2]]());
@@ -73,20 +73,20 @@ class NToken {
const data = `[${Utils.getStringBetweenStrings(this.raw_code.replace(/\n/g, ''), 'c=[', '];c')}]`;
return JSON.parse(Constants.formatNTransformData(data));
}
/**
* Gets a base64 alphabet and uses it as a lookup table to modify n.
*/
#translate1(arr, token, is_reverse_base64) {
const characters = is_reverse_base64 && Constants.BASE64_DIALECT.REVERSE || Constants.BASE64_DIALECT.NORMAL;
arr.forEach(function(char, index, loc) {
arr.forEach(function (char, index, loc) {
this.push(loc[index] = characters[(characters.indexOf(char) - characters.indexOf(this[index]) + 64) % characters.length]);
}, token.split(''));
}
#translate2(arr, token, characters) {
let chars_length = characters.length;
arr.forEach(function(char, index, loc) {
arr.forEach(function (char, index, loc) {
this.push(loc[index] = characters[(characters.indexOf(char) - characters.indexOf(this[index]) + index + chars_length--) % characters.length]);
}, token.split(''));
}