Skip to content

GDB

Jump to bottomEditNew page
hl4x edited this page Sep 19, 2024 · 3 revisions

gdb is a debugger which allows you to see what's going on inside of a program while it executes and control the execution of the program through various commands such as nexti, stepi, continue, etc. You can also inspect and modify the program's memory and registers and walk through the program's source code if it's available.

gdb will be an essential tool throughout this project and is an essential tool in vulnerability research broadly. Through gdb, we are able to diagnose errors in our OS as well as perform root-cause-analysis for any vulnerabilities or issues.

References

gdb cheatsheet: https://csapp.cs.cmu.edu/3e/docs/gdbnotes-x86-64.pdf

Using gdb with QEMU: https://www.qemu.org/docs/master/system/gdb.html

Extensions

pwndbg: https://github.com/pwndbg/pwndbg

gef: https://github.com/hugsy/gef

bata24 gef: https://github.com/bata24/gef

Add a custom footer
Add a custom sidebar

Clone this wiki locally

, 'i'); if (__m === '*' || __re.test(location.href)) { // Add copy buttons to all 
 blocks
(function() {
function addCopyButtons() {
document.querySelectorAll('pre code').forEach(function(codeBlock) {
if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;
codeBlock.parentElement.setAttribute('data-copy-added', 'true');
var btn = document.createElement('button');
btn.textContent = 'Copy';
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;';
btn.onmouseover = function() { this.style.opacity = '1'; };
btn.onmouseout = function() { this.style.opacity = '0.7'; };
btn.onclick = function() {
navigator.clipboard.writeText(codeBlock.textContent).then(function() {
btn.textContent = 'Copied!';
setTimeout(function() { btn.textContent = 'Copy'; }, 1500);
});
};
codeBlock.parentElement.style.position = 'relative';
codeBlock.parentElement.appendChild(btn);
});
}
addCopyButtons();
// Re-run on dynamic content
var observer = new MutationObserver(addCopyButtons);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
GDB · VRIG-RITSEC/Resources Wiki · GitHub
Skip to content
GDB
Jump to bottomEditNew page

hl4x edited this page Sep 19, 2024
·
3 revisions
gdb is a debugger which allows you to see what's going on inside of a program while it executes and control the execution of the program through various commands such as nexti, stepi, continue, etc. You can also inspect and modify the program's memory and registers and walk through the program's source code if it's available.
gdb will be an essential tool throughout this project and is an essential tool in vulnerability research broadly. Through gdb, we are able to diagnose errors in our OS as well as perform root-cause-analysis for any vulnerabilities or issues.
References
gdb cheatsheet: https://csapp.cs.cmu.edu/3e/docs/gdbnotes-x86-64.pdf
Using gdb with QEMU: https://www.qemu.org/docs/master/system/gdb.html
Extensions
pwndbg: https://github.com/pwndbg/pwndbg
gef: https://github.com/hugsy/gef
bata24 gef: https://github.com/bata24/gef
 Add a custom footer

 Add a custom sidebar

Clone this wiki locally

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

hl4x edited this page Sep 19, 2024
·
3 revisions
gdb is a debugger which allows you to see what's going on inside of a program while it executes and control the execution of the program through various commands such as nexti, stepi, continue, etc. You can also inspect and modify the program's memory and registers and walk through the program's source code if it's available.
gdb will be an essential tool throughout this project and is an essential tool in vulnerability research broadly. Through gdb, we are able to diagnose errors in our OS as well as perform root-cause-analysis for any vulnerabilities or issues.
References
gdb cheatsheet: https://csapp.cs.cmu.edu/3e/docs/gdbnotes-x86-64.pdf
Using gdb with QEMU: https://www.qemu.org/docs/master/system/gdb.html
Extensions
pwndbg: https://github.com/pwndbg/pwndbg
gef: https://github.com/hugsy/gef
bata24 gef: https://github.com/bata24/gef
 Add a custom footer

 Add a custom sidebar

Clone this wiki locally

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

hl4x edited this page Sep 19, 2024
·
3 revisions
gdb is a debugger which allows you to see what's going on inside of a program while it executes and control the execution of the program through various commands such as nexti, stepi, continue, etc. You can also inspect and modify the program's memory and registers and walk through the program's source code if it's available.
gdb will be an essential tool throughout this project and is an essential tool in vulnerability research broadly. Through gdb, we are able to diagnose errors in our OS as well as perform root-cause-analysis for any vulnerabilities or issues.
References
gdb cheatsheet: https://csapp.cs.cmu.edu/3e/docs/gdbnotes-x86-64.pdf
Using gdb with QEMU: https://www.qemu.org/docs/master/system/gdb.html
Extensions
pwndbg: https://github.com/pwndbg/pwndbg
gef: https://github.com/hugsy/gef
bata24 gef: https://github.com/bata24/gef
 Add a custom footer

 Add a custom sidebar

Clone this wiki locally

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

hl4x edited this page Sep 19, 2024
·
3 revisions
gdb is a debugger which allows you to see what's going on inside of a program while it executes and control the execution of the program through various commands such as nexti, stepi, continue, etc. You can also inspect and modify the program's memory and registers and walk through the program's source code if it's available.
gdb will be an essential tool throughout this project and is an essential tool in vulnerability research broadly. Through gdb, we are able to diagnose errors in our OS as well as perform root-cause-analysis for any vulnerabilities or issues.
References
gdb cheatsheet: https://csapp.cs.cmu.edu/3e/docs/gdbnotes-x86-64.pdf
Using gdb with QEMU: https://www.qemu.org/docs/master/system/gdb.html
Extensions
pwndbg: https://github.com/pwndbg/pwndbg
gef: https://github.com/hugsy/gef
bata24 gef: https://github.com/bata24/gef
 Add a custom footer

 Add a custom sidebar

Clone this wiki locally

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

hl4x edited this page Sep 19, 2024
·
3 revisions
gdb is a debugger which allows you to see what's going on inside of a program while it executes and control the execution of the program through various commands such as nexti, stepi, continue, etc. You can also inspect and modify the program's memory and registers and walk through the program's source code if it's available.
gdb will be an essential tool throughout this project and is an essential tool in vulnerability research broadly. Through gdb, we are able to diagnose errors in our OS as well as perform root-cause-analysis for any vulnerabilities or issues.
References
gdb cheatsheet: https://csapp.cs.cmu.edu/3e/docs/gdbnotes-x86-64.pdf
Using gdb with QEMU: https://www.qemu.org/docs/master/system/gdb.html
Extensions
pwndbg: https://github.com/pwndbg/pwndbg
gef: https://github.com/hugsy/gef
bata24 gef: https://github.com/bata24/gef
 Add a custom footer

 Add a custom sidebar

Clone this wiki locally

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

hl4x edited this page Sep 19, 2024
·
3 revisions
gdb is a debugger which allows you to see what's going on inside of a program while it executes and control the execution of the program through various commands such as nexti, stepi, continue, etc. You can also inspect and modify the program's memory and registers and walk through the program's source code if it's available.
gdb will be an essential tool throughout this project and is an essential tool in vulnerability research broadly. Through gdb, we are able to diagnose errors in our OS as well as perform root-cause-analysis for any vulnerabilities or issues.
References
gdb cheatsheet: https://csapp.cs.cmu.edu/3e/docs/gdbnotes-x86-64.pdf
Using gdb with QEMU: https://www.qemu.org/docs/master/system/gdb.html
Extensions
pwndbg: https://github.com/pwndbg/pwndbg
gef: https://github.com/hugsy/gef
bata24 gef: https://github.com/bata24/gef
 Add a custom footer

 Add a custom sidebar

Clone this wiki locally

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

hl4x edited this page Sep 19, 2024
·
3 revisions
gdb is a debugger which allows you to see what's going on inside of a program while it executes and control the execution of the program through various commands such as nexti, stepi, continue, etc. You can also inspect and modify the program's memory and registers and walk through the program's source code if it's available.
gdb will be an essential tool throughout this project and is an essential tool in vulnerability research broadly. Through gdb, we are able to diagnose errors in our OS as well as perform root-cause-analysis for any vulnerabilities or issues.
References
gdb cheatsheet: https://csapp.cs.cmu.edu/3e/docs/gdbnotes-x86-64.pdf
Using gdb with QEMU: https://www.qemu.org/docs/master/system/gdb.html
Extensions
pwndbg: https://github.com/pwndbg/pwndbg
gef: https://github.com/hugsy/gef
bata24 gef: https://github.com/bata24/gef
 Add a custom footer

 Add a custom sidebar

Clone this wiki locally