reverseProeasy

Разминка (Warmup)

hackerlab

Task: .NET PE32 executable with AES encryption, find the correct password. Solution: Extract hardcoded AES key/IV from #US heap and encrypted flag from data section, decrypt with AES-CBC.

aes dotnet cbc_mode hardcoded_key pe32 metadata_analysis us_heap dll

.NET metadata analysis (#US heap string extraction)Static data extraction from PE sectionsAES-CBC decryption with hardcoded key/IVBinary analysis with xxd/strings

$ ls tags/ techniques/

aes dotnet cbc_mode hardcoded_key pe32 metadata_analysis us_heap dll

.NET metadata analysis (#US heap string extraction)Static data extraction from PE sectionsAES-CBC decryption with hardcoded key/IVBinary analysis with xxd/strings

Analysis

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

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