Snitch (Снитч)

hackerlab

Task: Web page with obfuscated JavaScript and a flying snitch distraction. Solution: Analyzed deobfuscation function ISd() and extracted flag from string array in browser console.

javascript client_side deobfuscation string_shuffle obfuscated_code hardcoded_flag

JavaScript deobfuscationCustom shuffle algorithm reverse engineeringString constant extraction from obfuscated arrays

$ ls tags/ techniques/

javascript client_side deobfuscation string_shuffle obfuscated_code hardcoded_flag

JavaScript deobfuscationCustom shuffle algorithm reverse engineeringString constant extraction from obfuscated arrays

Analysis

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.

$ python3 exploit.py --target 192.168.1.1 --port 8080
[*] Connecting to target...
[+] Shell obtained!

Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.

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