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

생성일: 2026년 8월 25일

질문

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

사고

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

Worked for 1m 21s

답변

Luhn Algorithm

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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)

사고

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

Worked for 22s

답변

0x0A

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사고

답변

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사고

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