User Tools
Sidebar
symbolicjs
This is an old revision of the document!
Table of Contents
Notes on JavaScipt obfuscation
Inspired by JSFuck, but here's the rules:
- 7-bit printable ASCII (32 to 126)
- No alphanumerics (
[a-zA-Z0-9]), no spaces, only``quotes
Build some strings with keywords
Use either `${<code>}` or (<code>+[]) to obtain useful keywords:
| keyword | code |
|---|---|
[object Object] | {} |
true | !`` |
false | ![] |
NaN | -`!` |
undefined | [][[]] |
-Infinity | ~[]/[] |
Index the strings with numerals
| number | code |
|---|---|
| -3 | ~-~-~[] |
| -2 | ~-~[] |
| -1 | ~[] |
| 0 | -[] |
| 1 | -~[] |
| 2 | -~-~[] |
| 3 | -~-~-~[] |
`` and {} usually also works instead of [].
Build a basic alphabet
| code | |
|---|---|
| a | `${![]}`[-~[]] |
| b | `${{}}`[-~-~[]] |
| c | `${{}}`[-~-~-~-~-~[]] |
| d | `${[][[]]}`[-~-~[]] |
| e | `${!``}`[-~-~-~[]] |
| f | `${![]}`[-[]] |
| i | `${[][[]]}`[-~-~-~-~-~[]] |
| j | `${{}}`[-~-~-~[]] |
| l | `${![]}`[-~-~[]] |
| n | `${[][[]]}`[-~[]] |
| o | `${{}}`[-~[]] |
| r | `${!``}`[-~[]] |
| s | `${![]}`[-~-~-~[]] |
| t | `${!``}`[-[]] |
| u | `${!``}`[-~-~[]] |
| y | `${-~[]/[]}`[-~-~-~-~-~-~-~[]] |
| I | `${~[]/[]}`[-~[]] |
| N | `${-`!`}`[-[]] |
| O | `${{}}`[-~-~-~-~-~-~-~-~[]] |
| space | `${{}}`[-~-~-~-~-~-~-~[]] |
symbolicjs.1747024628.txt.gz · Last modified: by Yuki