Mission Difference

Category
Miscellaneous
Points
-1
Solves
-1
Tags
#OSINT

I want to use Mission Difference 674 name but it’s already taken :(.

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by ztz

I started my investigation by searching for MissionDifference674 on Google. This search quickly led me to a Reddit profile. While browsing the profile, I noticed a custom feed named “Programming” and observed that the user was a member of the “r/learncpp443” community.

Curious about this subreddit, I visited it and examined the list of moderators. By checking their profiles, I eventually found an email address in one of the moderator descriptions. I decided to reach out to the moderator via email, and in response, I received a hex string.

Upon inspection, I recognized the hex string as a blockchain address on the Sepolia testnet (0xc13Fbc18a3a06C8C0521F8026714DbcD8a7e34c3). I explored the transaction history of this address and discovered a smart contract transaction. In the constructor call of this contract, I found a string argument that turned out to be the flag.

Mission Difference Flag: RECURSION{4h_i_th0ught_you_w4nt3d_t0_g1ve_m3_som3_ETH}