Decode a CharCode-to-Base64 script chain

Turn decimal character codes into a wrapper, extract its Base64 payload, decode the script, and list its URL safely.

Install in Serialize

What it can do

Extract numeric character data
Recover a wrapper script
Decode its inner Base64 payload
Extract and defang an endpoint

How the recipe works

Regular expression

Select the comma-separated decimal sequence.

From Charcode

Convert character codes to the wrapper text.

Regular expression

Extract the wrapper's long Base64 value.

From Base64

Decode the inner script.

Generic Code Beautify

Format code boundaries for review.

Extract URLs

List the embedded URL.

Defang URL

Defang the result for a report.

Demonstration

Sample input

118,97,114,32,98,108,111,98,61,39,100,109,70,121,73,71,86,117,90,72,66,118,97,87,53,48,80,83,74,111,100,72,82,119,99,122,111,118,76,50,70,119,97,83,53,108,101,71,70,116,99,71,120,108,76,110,82,108,99,51,81,118,100,106,69,105,79,119,61,61,39,59

Expected result

hxxps[://]api[.]example[.]test/v1

When to use it

Multi-layer decoding exercises
Script triage
Explaining evidence-driven operation selection

Adapt it

Change the numeric delimiter or radix before changing later stages; validate every boundary before proceeding.

Source and verification

Adapted from kraven-security CyberChef recipes. The explanation and sample are written for Serialize, use synthetic or documentation-safe data, and are checked against the current operation catalogue. The workflow runs locally without an external API call.