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UnrealKey

UnrealKey is a tool for automatically finding the AES-256 decryption keys for Unreal Engine 4 encrypted pak files.

Pass the path to a game's executable as an argument to UnrealKey.exe, and it will launch the game and attempt to detect the loading and decryption of encrypted pak files. If successful, the decryption key(s) will appear in the output, usually within a few seconds of launching the game.

This project is a proof of concept and is not being actively developed or maintained.

Example output

[11976] starting TetrisEffect.exe
[ 9604] starting "C:\Program Files\Epic Games\TetrisEffect\TetrisEffect/Binaries/Win64/TetrisEffect-Win64-Shipping.exe" TetrisEffect
[ 9604] Reading pak info for \\?\C:\Program Files\Epic Games\TetrisEffect\TetrisEffect\Content\Paks\TetrisEffect-WindowsNoEditor.pak (encrypted)
[ 9604] Reading encrypted pak index for TetrisEffect-WindowsNoEditor.pak
[ 9604] Detected buffer->index copy successfully
[ 9604] Detected index decryption successfully, finding key now...
[ 9604] Key: 0x0635D5F4B20E2CF1708524223DB7F1C77E7C49C556C5B875A90132E88E91F734
[11976] process exited with code 0x0
Summary:
--------
File: \\?\C:\Program Files\Epic Games\TetrisEffect\TetrisEffect\Content\Paks\TetrisEffect-WindowsNoEditor.pak
Key: 0x0635D5F4B20E2CF1708524223DB7F1C77E7C49C556C5B875A90132E88E91F734

Limitations

Currently, only 64-bit Windows games are supported.

Games using Steam DRM should work (without needing to manually create a steam_appid.txt file), as long as the Steam client is open and logged in (and the game is actually in your library). If you're having trouble with a particular game, try running it through Steamless first.

Games using anti-cheat software will most likely not work, since this tool doesn't make any attempt to circumvent it.

License

UnrealKey uses code from minhook (2-clause BSD license) and tiny-AES-c (public domain).

All other code is released under the MIT license. See COPYING.txt for details.

About

AES decryption key finder for Unreal Engine 4

Resources

Readme
MIT license
Activity

Stars

145 stars

Watchers

8 watching

Forks

18 forks
Report repository

Releases

Used by

Contributors

Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

Skip to content
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UnrealKey
UnrealKey is a tool for automatically finding the AES-256 decryption keys for Unreal Engine 4 encrypted pak files.
Pass the path to a game's executable as an argument to UnrealKey.exe, and it will launch the game and attempt to detect the loading and decryption of encrypted pak files. If successful, the decryption key(s) will appear in the output, usually within a few seconds of launching the game.
This project is a proof of concept and is not being actively developed or maintained.
Example output
[11976] starting TetrisEffect.exe
[ 9604] starting "C:\Program Files\Epic Games\TetrisEffect\TetrisEffect/Binaries/Win64/TetrisEffect-Win64-Shipping.exe" TetrisEffect
[ 9604] Reading pak info for \\?\C:\Program Files\Epic Games\TetrisEffect\TetrisEffect\Content\Paks\TetrisEffect-WindowsNoEditor.pak (encrypted)
[ 9604] Reading encrypted pak index for TetrisEffect-WindowsNoEditor.pak
[ 9604] Detected buffer->index copy successfully
[ 9604] Detected index decryption successfully, finding key now...
[ 9604] Key: 0x0635D5F4B20E2CF1708524223DB7F1C77E7C49C556C5B875A90132E88E91F734
[11976] process exited with code 0x0
Summary:
--------
File: \\?\C:\Program Files\Epic Games\TetrisEffect\TetrisEffect\Content\Paks\TetrisEffect-WindowsNoEditor.pak
Key: 0x0635D5F4B20E2CF1708524223DB7F1C77E7C49C556C5B875A90132E88E91F734

Limitations
Currently, only 64-bit Windows games are supported.
Games using Steam DRM should work (without needing to manually create a steam_appid.txt file), as long as the Steam client is open and logged in (and the game is actually in your library). If you're having trouble with a particular game, try running it through Steamless first.
Games using anti-cheat software will most likely not work, since this tool doesn't make any attempt to circumvent it.
License
UnrealKey uses code from minhook (2-clause BSD license) and tiny-AES-c (public domain).
All other code is released under the MIT license. See COPYING.txt for details.
About
AES decryption key finder for Unreal Engine 4
Resources
Readme
MIT license
Activity
Stars
145 stars
Watchers
8 watching
Forks
18 forks
Report repository
Releases
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix");
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
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UnrealKey
UnrealKey is a tool for automatically finding the AES-256 decryption keys for Unreal Engine 4 encrypted pak files.
Pass the path to a game's executable as an argument to UnrealKey.exe, and it will launch the game and attempt to detect the loading and decryption of encrypted pak files. If successful, the decryption key(s) will appear in the output, usually within a few seconds of launching the game.
This project is a proof of concept and is not being actively developed or maintained.
Example output
[11976] starting TetrisEffect.exe
[ 9604] starting "C:\Program Files\Epic Games\TetrisEffect\TetrisEffect/Binaries/Win64/TetrisEffect-Win64-Shipping.exe" TetrisEffect
[ 9604] Reading pak info for \\?\C:\Program Files\Epic Games\TetrisEffect\TetrisEffect\Content\Paks\TetrisEffect-WindowsNoEditor.pak (encrypted)
[ 9604] Reading encrypted pak index for TetrisEffect-WindowsNoEditor.pak
[ 9604] Detected buffer->index copy successfully
[ 9604] Detected index decryption successfully, finding key now...
[ 9604] Key: 0x0635D5F4B20E2CF1708524223DB7F1C77E7C49C556C5B875A90132E88E91F734
[11976] process exited with code 0x0
Summary:
--------
File: \\?\C:\Program Files\Epic Games\TetrisEffect\TetrisEffect\Content\Paks\TetrisEffect-WindowsNoEditor.pak
Key: 0x0635D5F4B20E2CF1708524223DB7F1C77E7C49C556C5B875A90132E88E91F734

Limitations
Currently, only 64-bit Windows games are supported.
Games using Steam DRM should work (without needing to manually create a steam_appid.txt file), as long as the Steam client is open and logged in (and the game is actually in your library). If you're having trouble with a particular game, try running it through Steamless first.
Games using anti-cheat software will most likely not work, since this tool doesn't make any attempt to circumvent it.
License
UnrealKey uses code from minhook (2-clause BSD license) and tiny-AES-c (public domain).
All other code is released under the MIT license. See COPYING.txt for details.
About
AES decryption key finder for Unreal Engine 4
Resources
Readme
MIT license
Activity
Stars
145 stars
Watchers
8 watching
Forks
18 forks
Report repository
Releases
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
Repository files navigation
UnrealKey
UnrealKey is a tool for automatically finding the AES-256 decryption keys for Unreal Engine 4 encrypted pak files.
Pass the path to a game's executable as an argument to UnrealKey.exe, and it will launch the game and attempt to detect the loading and decryption of encrypted pak files. If successful, the decryption key(s) will appear in the output, usually within a few seconds of launching the game.
This project is a proof of concept and is not being actively developed or maintained.
Example output
[11976] starting TetrisEffect.exe
[ 9604] starting "C:\Program Files\Epic Games\TetrisEffect\TetrisEffect/Binaries/Win64/TetrisEffect-Win64-Shipping.exe" TetrisEffect
[ 9604] Reading pak info for \\?\C:\Program Files\Epic Games\TetrisEffect\TetrisEffect\Content\Paks\TetrisEffect-WindowsNoEditor.pak (encrypted)
[ 9604] Reading encrypted pak index for TetrisEffect-WindowsNoEditor.pak
[ 9604] Detected buffer->index copy successfully
[ 9604] Detected index decryption successfully, finding key now...
[ 9604] Key: 0x0635D5F4B20E2CF1708524223DB7F1C77E7C49C556C5B875A90132E88E91F734
[11976] process exited with code 0x0
Summary:
--------
File: \\?\C:\Program Files\Epic Games\TetrisEffect\TetrisEffect\Content\Paks\TetrisEffect-WindowsNoEditor.pak
Key: 0x0635D5F4B20E2CF1708524223DB7F1C77E7C49C556C5B875A90132E88E91F734

Limitations
Currently, only 64-bit Windows games are supported.
Games using Steam DRM should work (without needing to manually create a steam_appid.txt file), as long as the Steam client is open and logged in (and the game is actually in your library). If you're having trouble with a particular game, try running it through Steamless first.
Games using anti-cheat software will most likely not work, since this tool doesn't make any attempt to circumvent it.
License
UnrealKey uses code from minhook (2-clause BSD license) and tiny-AES-c (public domain).
All other code is released under the MIT license. See COPYING.txt for details.
About
AES decryption key finder for Unreal Engine 4
Resources
Readme
MIT license
Activity
Stars
145 stars
Watchers
8 watching
Forks
18 forks
Report repository
Releases
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

Skip to content
BranchesTags
Repository files navigation
UnrealKey
UnrealKey is a tool for automatically finding the AES-256 decryption keys for Unreal Engine 4 encrypted pak files.
Pass the path to a game's executable as an argument to UnrealKey.exe, and it will launch the game and attempt to detect the loading and decryption of encrypted pak files. If successful, the decryption key(s) will appear in the output, usually within a few seconds of launching the game.
This project is a proof of concept and is not being actively developed or maintained.
Example output
[11976] starting TetrisEffect.exe
[ 9604] starting "C:\Program Files\Epic Games\TetrisEffect\TetrisEffect/Binaries/Win64/TetrisEffect-Win64-Shipping.exe" TetrisEffect
[ 9604] Reading pak info for \\?\C:\Program Files\Epic Games\TetrisEffect\TetrisEffect\Content\Paks\TetrisEffect-WindowsNoEditor.pak (encrypted)
[ 9604] Reading encrypted pak index for TetrisEffect-WindowsNoEditor.pak
[ 9604] Detected buffer->index copy successfully
[ 9604] Detected index decryption successfully, finding key now...
[ 9604] Key: 0x0635D5F4B20E2CF1708524223DB7F1C77E7C49C556C5B875A90132E88E91F734
[11976] process exited with code 0x0
Summary:
--------
File: \\?\C:\Program Files\Epic Games\TetrisEffect\TetrisEffect\Content\Paks\TetrisEffect-WindowsNoEditor.pak
Key: 0x0635D5F4B20E2CF1708524223DB7F1C77E7C49C556C5B875A90132E88E91F734

Limitations
Currently, only 64-bit Windows games are supported.
Games using Steam DRM should work (without needing to manually create a steam_appid.txt file), as long as the Steam client is open and logged in (and the game is actually in your library). If you're having trouble with a particular game, try running it through Steamless first.
Games using anti-cheat software will most likely not work, since this tool doesn't make any attempt to circumvent it.
License
UnrealKey uses code from minhook (2-clause BSD license) and tiny-AES-c (public domain).
All other code is released under the MIT license. See COPYING.txt for details.
About
AES decryption key finder for Unreal Engine 4
Resources
Readme
MIT license
Activity
Stars
145 stars
Watchers
8 watching
Forks
18 forks
Report repository
Releases
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
Repository files navigation
UnrealKey
UnrealKey is a tool for automatically finding the AES-256 decryption keys for Unreal Engine 4 encrypted pak files.
Pass the path to a game's executable as an argument to UnrealKey.exe, and it will launch the game and attempt to detect the loading and decryption of encrypted pak files. If successful, the decryption key(s) will appear in the output, usually within a few seconds of launching the game.
This project is a proof of concept and is not being actively developed or maintained.
Example output
[11976] starting TetrisEffect.exe
[ 9604] starting "C:\Program Files\Epic Games\TetrisEffect\TetrisEffect/Binaries/Win64/TetrisEffect-Win64-Shipping.exe" TetrisEffect
[ 9604] Reading pak info for \\?\C:\Program Files\Epic Games\TetrisEffect\TetrisEffect\Content\Paks\TetrisEffect-WindowsNoEditor.pak (encrypted)
[ 9604] Reading encrypted pak index for TetrisEffect-WindowsNoEditor.pak
[ 9604] Detected buffer->index copy successfully
[ 9604] Detected index decryption successfully, finding key now...
[ 9604] Key: 0x0635D5F4B20E2CF1708524223DB7F1C77E7C49C556C5B875A90132E88E91F734
[11976] process exited with code 0x0
Summary:
--------
File: \\?\C:\Program Files\Epic Games\TetrisEffect\TetrisEffect\Content\Paks\TetrisEffect-WindowsNoEditor.pak
Key: 0x0635D5F4B20E2CF1708524223DB7F1C77E7C49C556C5B875A90132E88E91F734

Limitations
Currently, only 64-bit Windows games are supported.
Games using Steam DRM should work (without needing to manually create a steam_appid.txt file), as long as the Steam client is open and logged in (and the game is actually in your library). If you're having trouble with a particular game, try running it through Steamless first.
Games using anti-cheat software will most likely not work, since this tool doesn't make any attempt to circumvent it.
License
UnrealKey uses code from minhook (2-clause BSD license) and tiny-AES-c (public domain).
All other code is released under the MIT license. See COPYING.txt for details.
About
AES decryption key finder for Unreal Engine 4
Resources
Readme
MIT license
Activity
Stars
145 stars
Watchers
8 watching
Forks
18 forks
Report repository
Releases
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
Repository files navigation
UnrealKey
UnrealKey is a tool for automatically finding the AES-256 decryption keys for Unreal Engine 4 encrypted pak files.
Pass the path to a game's executable as an argument to UnrealKey.exe, and it will launch the game and attempt to detect the loading and decryption of encrypted pak files. If successful, the decryption key(s) will appear in the output, usually within a few seconds of launching the game.
This project is a proof of concept and is not being actively developed or maintained.
Example output
[11976] starting TetrisEffect.exe
[ 9604] starting "C:\Program Files\Epic Games\TetrisEffect\TetrisEffect/Binaries/Win64/TetrisEffect-Win64-Shipping.exe" TetrisEffect
[ 9604] Reading pak info for \\?\C:\Program Files\Epic Games\TetrisEffect\TetrisEffect\Content\Paks\TetrisEffect-WindowsNoEditor.pak (encrypted)
[ 9604] Reading encrypted pak index for TetrisEffect-WindowsNoEditor.pak
[ 9604] Detected buffer->index copy successfully
[ 9604] Detected index decryption successfully, finding key now...
[ 9604] Key: 0x0635D5F4B20E2CF1708524223DB7F1C77E7C49C556C5B875A90132E88E91F734
[11976] process exited with code 0x0
Summary:
--------
File: \\?\C:\Program Files\Epic Games\TetrisEffect\TetrisEffect\Content\Paks\TetrisEffect-WindowsNoEditor.pak
Key: 0x0635D5F4B20E2CF1708524223DB7F1C77E7C49C556C5B875A90132E88E91F734

Limitations
Currently, only 64-bit Windows games are supported.
Games using Steam DRM should work (without needing to manually create a steam_appid.txt file), as long as the Steam client is open and logged in (and the game is actually in your library). If you're having trouble with a particular game, try running it through Steamless first.
Games using anti-cheat software will most likely not work, since this tool doesn't make any attempt to circumvent it.
License
UnrealKey uses code from minhook (2-clause BSD license) and tiny-AES-c (public domain).
All other code is released under the MIT license. See COPYING.txt for details.
About
AES decryption key finder for Unreal Engine 4
Resources
Readme
MIT license
Activity
Stars
145 stars
Watchers
8 watching
Forks
18 forks
Report repository
Releases
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

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UnrealKey
UnrealKey is a tool for automatically finding the AES-256 decryption keys for Unreal Engine 4 encrypted pak files.
Pass the path to a game's executable as an argument to UnrealKey.exe, and it will launch the game and attempt to detect the loading and decryption of encrypted pak files. If successful, the decryption key(s) will appear in the output, usually within a few seconds of launching the game.
This project is a proof of concept and is not being actively developed or maintained.
Example output
[11976] starting TetrisEffect.exe
[ 9604] starting "C:\Program Files\Epic Games\TetrisEffect\TetrisEffect/Binaries/Win64/TetrisEffect-Win64-Shipping.exe" TetrisEffect
[ 9604] Reading pak info for \\?\C:\Program Files\Epic Games\TetrisEffect\TetrisEffect\Content\Paks\TetrisEffect-WindowsNoEditor.pak (encrypted)
[ 9604] Reading encrypted pak index for TetrisEffect-WindowsNoEditor.pak
[ 9604] Detected buffer->index copy successfully
[ 9604] Detected index decryption successfully, finding key now...
[ 9604] Key: 0x0635D5F4B20E2CF1708524223DB7F1C77E7C49C556C5B875A90132E88E91F734
[11976] process exited with code 0x0
Summary:
--------
File: \\?\C:\Program Files\Epic Games\TetrisEffect\TetrisEffect\Content\Paks\TetrisEffect-WindowsNoEditor.pak
Key: 0x0635D5F4B20E2CF1708524223DB7F1C77E7C49C556C5B875A90132E88E91F734

Limitations
Currently, only 64-bit Windows games are supported.
Games using Steam DRM should work (without needing to manually create a steam_appid.txt file), as long as the Steam client is open and logged in (and the game is actually in your library). If you're having trouble with a particular game, try running it through Steamless first.
Games using anti-cheat software will most likely not work, since this tool doesn't make any attempt to circumvent it.
License
UnrealKey uses code from minhook (2-clause BSD license) and tiny-AES-c (public domain).
All other code is released under the MIT license. See COPYING.txt for details.
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AES decryption key finder for Unreal Engine 4
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