Reverse engineer challenge3.exe on the target mach...

創建於：2026年8月25日

問題

challenge3.exe

Reverse engineer challenge3.exe on the target machine with the IP address 172.25.65.103 and identify the standard algorithm implemented by the membership validation function.(Answer Format: Xxxx Xxxxxxxxx)
it a typical ctf we have to find the answer

思考

Inspected binary strings, cross-references, and Luhn validation assembly

Worked for 1m 21s

回答

Luhn Algorithm

問題

for the same exe Analyze the fiile challenge3.exe and determine the hexadecimal value used as the divisor in its final checksum validation on the machine with the IP address 172.25.65.103.(Answer Format: NxNX)

思考

Inspected executable metadata, unpacked strings, and traced Luhn validation logic

Worked for 22s

回答

0x0A

問題

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