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Questions tagged [hack]

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I got hacked on metamask today

Today I got hacked on meta mask: transaction hash 0xed8a4d46550431225fd2aab3bbd79ef9b4d55a31e8d2f4676d77004f658cbb84 somebody sent my eth from my adress ...
Alex's user avatar
  • 11
0 votes
0 answers
18 views

There's an auto withdraw bot activated in my wallet, how can i get my wallet back? [duplicate]

There's an auto withdraw bot activated in my wallet and all my coins are being transferred out automatically, please does anyone know how i can get my wallet back, i can't even deposit gas fee to ...
Olskido's user avatar
1 vote
1 answer
31 views

Seed phrase compromised, ERC20/NFT remaining, what are the options?

This is general Q&A for all the "My wallet is compromised by a sweeper bot, what can I do?" questions, as well as an attempt to combat the "Crypto Theft Recovery Options" ...
Maka's user avatar
  • 1,110
0 votes
1 answer
38 views

FlashLoans contract funds are being wrongly withdrawn without any action, how is this possible?

I'm new with flashloan, I'm using this code to test and everything works, however the tokens that remain in the contract after 30 to 40 minutes are "stolen", "improperly withdrawn",...
CodeLego Blockchain's user avatar
1 vote
2 answers
82 views

How hackers can penetrate our smart contract function calls?

I used this code in a smart contract method on Polygon blockchain: function withdraw() public { iERC20 tether = iERC20(0xc2132D05D31c914a87C6611C10748AEb04B58e8F); tether.transfer(msg.sender, ...
Alireza Zojaji's user avatar
0 votes
0 answers
7 views

help i neeed somone to tell me [duplicate]

I received that amount from an unknown source. what also troubles me is that my wallet displaces a much larger amount than i received which i cant explain.my gool is to convert that amount to EUR but ...
niko's user avatar
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0 answers
11 views

UNKNWON TRANSACTION TO MY WALLET

I received that amount from an unknown source. what also troubles me is that my wallet displaces a much larger amount than i received which i cant explain.my gool is to convert that amount to EUR but ...
niko's user avatar
  • 1
0 votes
1 answer
26 views

Best approach to simplify phantom array logic (ERC721 Enumerable) [HARD]

I wanted to create an ERC721 token vault with arbitrary numbers of NFTs pre-"minted", yet compliant with IERC721Enumerable as a proof-of-concept. For simplicity, the NFT ids are contiguous. ...
Ashraile's user avatar
  • 125
0 votes
0 answers
242 views

How to know in a deterministic way if a specifc address is vulnerable to the profanity hack?

Context : My private key just got stolen. The thieve sent to me a message starting by ”nice payment for your work„ on https://chat.blockscan.com along an e‑mail from [email protected] revealing a ...
user2284570's user avatar
  • 1,018
0 votes
1 answer
19 views

How do hackers fund their Ethereum gas for attacking contracts?

I was wondering how do hackers fund their Ethereum balances privately to further execute attacks? What protocols do they usually use?
Mila A's user avatar
  • 1,219
2 votes
1 answer
62 views

Possible way to hack Solidity into executing a function directly from a struct as a method? (v0.8.20)

pragma solidity 0.8.20; contract SolidityLimitTest { mapping (address => Hack) private Hackable; struct Hack { uint amount; function(uint) returns (uint) ten_x; } ...
Ashraile's user avatar
  • 125
0 votes
2 answers
41 views

Can frontrunners modify transaction parameters

I am asking if it's possible to change parameters of a function called, for example: function updatePrice(uint128 price) public onlyOwner{ latestPrice = price; lastPriceUpdate = ...
anonauditor's user avatar
3 votes
2 answers
1k views

How did I get my private key stolen?

Recently i received around 1400 USDC on my Ethereum wallet that I access through Metamask. Today I opened Metamask because I wanted to transfer those USDC, but I found that there were no USDC anymore ...
Andrea's user avatar
  • 31
0 votes
0 answers
28 views

Coinbase ghost transactions - what happened?

I went through the following process with a new wallet, and I lost my funds (not a lot)... I am trying to understand, from the blockchain perspective, what actually happened. This is the wallet in ...
Glenn Ferrie's user avatar
1 vote
0 answers
25 views

How to transfer nft from compromised wallet (sweeper bot actively looking) to secure address [duplicate]

One of my accounts was compromised and I have a valuable lens profile nft in that... every time I deposit matic for the gas fee to transfer nft someone steeled immediately .....please help.....
Aruna Saragada's user avatar
1 vote
1 answer
408 views

Fake BUSD transcation sent from my wallet (not fake 0 token scam)!

Transaction Hash: 0x7800fb4d9345fc7e8b2794a479f414948eb1a9126e14daff11d1802440996a68 The hackers sent fake busd token (with >0 amount) from multiple victims wallet to another wallet without any ...
ken's user avatar
  • 11
0 votes
1 answer
80 views

My Account is hacked. I send money in and its instantly sent to another address. I need to know how to stop this code from running? any thoughts?

I need to know how to stop a hack algorithm code from running on my meta-mask. As soon as I put any money into this account it is immediately sent to another address. I believe to someone called ...
Twok's user avatar
  • 1
2 votes
2 answers
54 views

How much ETC was stolen in the multiple 51% attacks on Ethereum-Classic?

Ethereum Classic was attacked multiple times back in 2020. How much was stolen and which addresses control these stolen funds now? And have they been sold?
Patoshi パトシ's user avatar
1 vote
0 answers
258 views

My Goerli wallet has been drained

I want to open this question from overflow since it was closed and I experience the same problem. This account "0x87C02eeacB08c11aFBb821798DB2F4cCcd8F9E3d" has been stealing many goerli and ...
ethereal1m's user avatar
2 votes
1 answer
169 views

Have any a16z-backed protocols ever been hacked?

This year, we saw the hack by exploit of a Binance bridge and a Ronin bridge due to weak code written by the protocol creators. a16z Crypto is the most influential DeFi protocol investor in web3, ...
user610620's user avatar
  • 1,528
-4 votes
1 answer
46 views

How can I use a reentrancy attack to permanently freeze funds?

If possible, can you please send me the code with as much details as possible? I would like to understand more about it but didn't find useful content on the internet. Thanks in advance
Joe B's user avatar
  • 3
0 votes
1 answer
43 views

Reentrancy attack question

// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "@openzeppelin/contracts/access/Ownable.sol"; interface IBank { function deposit() external payable; function withdraw(...
Joe B's user avatar
  • 3
0 votes
0 answers
156 views

how do I decompile a code that has some bugs inside using bytecode?

i was tried to understand the codes inside a SC on BSC recently and i found some weird codes inside the decompiled section. i know some little solidity programming and tried to use Remix to reverse it ...
SaveHen's user avatar
0 votes
2 answers
892 views

How to ".call" a function of another contract which uses ".call"

So, I'm learning advanced smart contract development. Two days ago, I learned about Reentrancy attacks and then I also created two contracts Protocol.sol (vulnerable contract) + Hacker.sol (attacker ...
DevABDee's user avatar
  • 473
-1 votes
1 answer
1k views

Tracking ip in etherscan

How do you find ip address in an ethereum transaction/etherscan? My ledger wallet was recently compromised and the tokens in my wallet were stolen. Is there anyway i can track the ip address in ...
Tbone03's user avatar
1 vote
0 answers
125 views

Scam wallet token recovery

How to build a code to recover the remaining coins from a hacked wallet Assume a hacker has compromised the wallet and automatically withdraws some funds how do I recover the remaining funds and there ...
Pedro Ezekiel's user avatar
1 vote
1 answer
210 views

How to fix vulnerability in solidity contract

I have recently deployed a contract on the BSC mainnet that got drained of all the funds in it, but I can't seem to find where in my contract the loophole is to know how it got drained so it doesn't ...
Starbody's user avatar
2 votes
1 answer
56 views

How could someone negotiate with the hacker?

I'm reading this article, and quote: After negotiation, one hacker agreed to return 259+63 ETH Since only the hacker can control the ETH funds, and no one can lock the ETH. I'm wondering on what ...
daisy's user avatar
  • 284
1 vote
2 answers
777 views

Just got my contract drained- how?

I just got my contract drained, and am trying to understand how. Obviously I'm a noob, played with fire and got burned bad (shouldn't have big sums of money on contracts). I SHOULD have transferred my ...
master_axe's user avatar
0 votes
1 answer
627 views

Potential signature malleability in Solidity CTF

I am doing a CTF so I don't want to give too much information away. I am pretty sure I can practice signature malleability or otherwise abuse the signer functions to be able to mint tokens given the ...
jforte44's user avatar
0 votes
2 answers
135 views

The Ethernaut King Challenge

I am trying to pass level 9 of Ethernaut challenges known as the King contract. My designed contract for hacking the King contract is as follows: pragma solidity 0.8.0; contract MaliciousKing { ...
Sina Rahimi's user avatar