← All Kali Issues
John the Ripper

Mangled rules error

C Configuration Low

🔴 Error Message

Invalid rule syntax in rules section

📖 What This Means

Custom John rules have syntax errors.

🔧 Step-by-Step Fix

  1. Check rule syntax in john.conf
  2. Test rules: john --rules --stdout --wordlist=test.txt
  3. Use built-in rules: --rules=Jumbo

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