Malware String De-obfuscator - Free Online IT Tool

🦠 Malware String De-obfuscator

Decode and de-obfuscate Base64, ROT13, Hex, and concatenated strings found in scripts. Privacy-First: Client-Side

ℹ️ About Malware String De-obfuscator

The Malware String De-obfuscator is a quick-response tool designed for Security Operations Center (SOC) analysts and incident responders. It takes a suspected obfuscated string and simultaneously attempts multiple common decoding techniques to reveal the hidden payload.

Supported Techniques:

Base64 Decoding: Standard encoding often used to hide commands.
ROT13 Substitution: A simple letter substitution cipher.
Hex Decoding: Converts hexadecimal byte representations (e.g., \x41) back to ASCII.
URL Decoding: Reverses percent-encoding.
Concatenation Removal: Strips out common script-based string splitting (e.g., 'powersh'+'ell').
String Reversal: Reverses the entire string.

📖 How to use Malware String De-obfuscator

1. Find a suspicious string in a script, event log, or email.
2. Paste the exact string into the text box.
3. Click 'Run Tool'. The tool will automatically try several decoding methods and display the results for any that succeed.

❓ Frequently Asked Questions

Does this tool execute the malware?

No. It only performs text-based string manipulation and decoding. It does not execute any commands or scripts.

Is it safe to paste sensitive or targeted malware strings here?

Yes. This tool is 100% Client-Side. The string you paste never leaves your web browser, ensuring full privacy and preventing accidental leakage of sensitive indicators of compromise (IoCs).