1057 hack event(s)
Description of the event: The attacker binaryfunxxx attacked the EosDice's game contract bocai.game and transfers most of the acquired EOS to the Binance exchange account binancecleos.
Amount of loss: - Attack method: Roll back attack
Description of the event: The attacker (panming12345) launched an attack on the EOS quiz game TRUSTBET game contract (trustbetgame), profiting a total of 11,501 EOS, and then transferred the EOS obtained from the attack to the Huobideposit account in two times. The attacker took advantage of the replay attack vulnerability. This is a form of attack that first appeared in the early days of the EOS DApp ecosystem. Due to the serious flaws in the random lottery algorithm designed by the developer, the attacker can use the contract vulnerabilities to draw the lottery repeatedly. Lower-level errors.
Amount of loss: 11,501 EOS Attack method: Replay attack
Description of the event: Rollback transaction attack.
Amount of loss: 200,000 EOS Attack method: Roll back attack
Description of the event: Big.game is suspected of being attacked by hacker eykkxszdrnnc. Big.game officially stated that the actual loss was about 8,000 EOS, and the balance of the dice prize pool has been transferred to a secure account.
Amount of loss: 8,000 EOS Attack method: Roll back attack
Description of the event: The attacker rolls back the transaction when placing a bet. From the time the bet is placed until the transaction is rolled back, the betting data will temporarily exist in the database of the current node; and Tobet queries the betting by polling the node database outside the contract. The lottery will be drawn outside the contract and the result will be passed to the lottery action; when the attacker keeps betting and rolls back the transaction, because the betting and Tobet polling use the same node, the Tobet lottery polling can query the database betting information for a short time and draw the lottery. . However, the attacker's bet was not successful, and the contract would continue to draw prizes for him, resulting in no capital arbitrage.
Amount of loss: 22,403.69 EOS Attack method: Roll back attack
Description of the event: The attacker (eykkxszdrnnc) launched an attack on the EOS MAX game contract (eosmaxiodice), an EOS quiz game, earning a total of 55,526.05 EOS. The game party has suspended the game operation at 6:40 am on the 19th, and issued an announcement saying that it was caused by a loophole in EOS Node, not a loophole in the game contract.
Amount of loss: 55,526 EOS Attack method: Roll back attack
Description of the event: The attacker helookitiqas launched attacks on the EOS game kittyfishing, which launched a total of 91 attacks in two hours.
Amount of loss: 558.85 EOS Attack method: Roll back attack
Description of the event: Vertcoin suffered a major attack in which hackers stole funds worth $100,000.
Amount of loss: $ 100,000 Attack method: 51% attack
Description of the event: The attacker ha4tsojigyge launched 124 attacks on the Fastwin game contract fastwindice3.
Amount of loss: 1,929.17 EOS Attack method: Unknown
Description of the event: Similar to the previous attack on EOS.WIN on November 11, multiple contract accounts were used to send transaction requests at the same time, and the front feint account was used to implement small bets. After ensuring a higher probability for the main attack account, increase the betting amount. And then get high bonuses.
Amount of loss: 10,569 EOS Attack method: Random number attack
Description of the event: Use multiple accounts to simultaneously send transaction requests for attack, so that the last attacker account gets the highest winning rate.
Amount of loss: 5,710 EOS Attack method: Use the transaction state rollback mechanism
Description of the event: EOS Atidium's official account wwwatidiumio was abnormal. A total of 6 tokens including ATD tokens 337,759,004 were transferred to account b4jmqvvktgjx. The account then transferred 130 million ATD tokens to Newdex Exchange for cash, a total of 3,183.8564 EOS were profitable..
Amount of loss: 3,183 EOS Attack method: The official private key is suspected of being stolen
Description of the event: Hacker ybdzmtgouwxn launched an attack on nutsgambling, an EOS quiz game. In less than an hour, a total of 144 attacks were launched, and a total of 1,141.71 EOS was obtained. In order to prevent the flow of funds from being tracked, the hacker used multiple sub-accounts to sequentially transfer the acquired assets to the account kcbtvwtxeabc, which has not been withdrawn to the exchange yet.
Amount of loss: 1,141.71 EOS Attack method: Roll back attack
Description of the event: The attacker (kuybupeykieh) launched an attack on the EOS quiz game contract (vegasgame111), making a total of hundreds of EOS. The data on the tracking chain found that, in order to prevent the flow of funds from being tracked, the hacker used dozens of operations to create sub-accounts. In order to transfer the acquired assets sequentially, the attacker used the "fake EOS" vulnerability to carry out the attack.
Amount of loss: - Attack method: Fake EOS vulnerability attack
Description of the event: The attacker malisringho continually initiated 35 game requests to the EOS Lelego contract llgcontract1., eventually guessing 27 times, making a total profit of 6,282.5 EOS, and then successfully transferring 6,500 EOS to the Binance Exchange.
Amount of loss: 6,282.5 EOS Attack method: Random number attack
Description of the event: EOS game contract LuckyGo has been off the line and the attacker iloveloveeos (malicious contract) was exposed in September because of attack on FairDice.
Amount of loss: - Attack method: Random number attack
Description of the event: A large number of HVTs in the AirDropsDAC contract account were transferred to the sym111111add account under abnormal operation, the account was then exchanged for 2,514 EOS at Newdex, which was subsequently transferred to the gizdkmjvhege account.
Amount of loss: 2,514 EOS Attack method: Private key leak
Description of the event: According to a report by Finder on November 12, AurumCoin (AU), a new digital currency based on the monetary gold standard system (the US dollar operation method), has recently suffered a 51% attack and lost 15,752.26 Australian dollars (approximately 11,362 US dollars).
Amount of loss: $ 11,362 Attack method: 51% attack
Description of the event: The game contract was attacked by the attacker lockonthecha.
Amount of loss: 20,000 EOS Attack method: Random number attack