---
id: 4774
title: "The art of payload obfuscation: how to mask malicious scripts and bypass defence mechanisms"
source_domain: yeswehack.com
source_url: "https://www.yeswehack.com/learn-bug-bounty/payload-obfuscation-techniques-guide"
published_at: "2025-03-27 14:42"
tags: ["bug-bounty", "encoding", "payload-obfuscation", "log4shell", "waf-bypass", "evasion"]
phying_url: "https://phying.com/item/4774"
lang: en
---

# The art of payload obfuscation: how to mask malicious scripts and bypass defence mechanisms

## Summary

Guide to payload obfuscation for bypassing WAFs and input filters: URL, Unicode, hex, octal and mixed encoding, variable expression assignment, arrays in parameters and JavaScript tricks.

## Intelligence Metadata

- **Sources:** yeswehack.com
- **Published:** 2025-03-27 14:42
- **Original:** https://www.yeswehack.com/learn-bug-bounty/payload-obfuscation-techniques-guide
- **Phying News:** https://phying.com/item/4774