---
id: 8281
title: "Function Hooking Part I: Hooking Shared Library Function Calls in Linux"
source_domain: netspi.com
source_url: "https://www.netspi.com/blog/technical-blog/network-pentesting/function-hooking-part-i-hooking-shared-library-function-calls-in-linux/"
published_at: "2013-07-08T00:00:00Z"
tags: ["linux", "reverse-engineering", "dynamic-analysis", "function-hooking", "ld-preload", "shared-libraries"]
phying_url: "https://phying.com/item/8281"
lang: en
---

# Function Hooking Part I: Hooking Shared Library Function Calls in Linux

## Summary

Covers Linux function hooking via the dynamic loader API and LD_PRELOAD to wrap library calls at runtime — an easier alternative to GDB for monitoring crypto calls, file I/O, and network traffic.

## Intelligence Metadata

- **Sources:** netspi.com
- **Published:** 2013-07-08T00:00:00Z
- **Original:** https://www.netspi.com/blog/technical-blog/network-pentesting/function-hooking-part-i-hooking-shared-library-function-calls-in-linux/
- **Phying News:** https://phying.com/item/8281