https://koyphshii.github.io/tags/evm/Evm - Tag - KoyphshiHugo -- gohugo.ioenWed, 07 Jan 2026 00:00:00 +0000https://koyphshii.github.io/ethernaut/delegation/Wed, 07 Jan 2026 00:00:00 +0000https://koyphshii.github.io/ethernaut/delegation/<p>in this challenge we are given the code for 2 contracts and our goal is to claim ownership for the given contract instance</p>https://koyphshii.github.io/posts/ethernaut/Wed, 07 Jan 2026 00:00:00 +0000https://koyphshii.github.io/posts/ethernaut/Collection of Ethernaut challenge writeupshttps://koyphshii.github.io/ethernaut/force/Wed, 07 Jan 2026 00:00:00 +0000https://koyphshii.github.io/ethernaut/force/<p>in this challenge we are given this contract and our goal is to increase the balance of this contract, this might be weird because this contract is empty!</p>https://koyphshii.github.io/ethernaut/gatekeeper-one/Wed, 07 Jan 2026 00:00:00 +0000https://koyphshii.github.io/ethernaut/gatekeeper-one/<p>in this challenge our goal is to pass the three gates we have</p>https://koyphshii.github.io/ethernaut/magic-number/Wed, 07 Jan 2026 00:00:00 +0000https://koyphshii.github.io/ethernaut/magic-number/this challenge is about calling the setSolver function and we give it an address of a contract that responds to whatIsTheMeaningOfLife() with the number 42

]]>https://koyphshii.github.io/ethernaut/token/Wed, 07 Jan 2026 00:00:00 +0000https://koyphshii.github.io/ethernaut/token/<p>in this challenge we are given a simple token contract, we start with 20 tokens and our goal is to find a bug that allows us to get a large amount of tokens</p>https://koyphshii.github.io/ethernaut/vault/Wed, 07 Jan 2026 00:00:00 +0000https://koyphshii.github.io/ethernaut/vault/we are given this contract instance and our task is to set locked to false

]]>https://koyphshii.github.io/posts/indit/Wed, 24 Dec 2025 00:00:00 +0000https://koyphshii.github.io/posts/indit/Exploiting unchecked ecrecover return values and dirty memory in inline assembly to bypass signature verification and steal golden tickets.