Hacked Event Broadcast

MetaPoint ($POT) on BSC was hacked with a loss of $920K. The root cause is that users will create a new contract to hold their funds each time they deposit $POT, but the contract has a public approve function to transfer all users' assets.

Paribus, the first cross-chain lending platform on Cardano, was attacked and lost about $100,000. The reason for the attack is that it uses a fork of an old version of Compound V2, which has a known reentrancy vulnerability.

Terraport, a decentralized finance project launched by TerraCVita, an independent development team of Terra Classic, was hacked and all its liquidity was exhausted. Data shows that nearly $4 million worth of LUNC, USTC and TERRA tokens have been emptied. The attacker withdrew 9,148,426 TERRA and 15.1 billion LUNC in the first transaction, and 576,736 TERRA and 5,487,381 USTC in the second transaction.

On April 9th, a rug pull occurred on the ZkSync ecological project CoreHunter, and the scammers made a profit of about 510,000 US dollars.

South Korean cryptocurrency exchange GDAC said on its official website that it was hacked and lost nearly $13 million. On April 9, the hackers moved nearly $13 million, or 23 percent of their total custody assets, from the GDAC hot wallet to an unidentified wallet. Hackers stole nearly 61 bitcoins (BTC), 350.5 ethers (ETH), 10 million wemix tokens (WEMIX), and 220,000 USDT.

SUSHI RouteProcessor2 was attacked and lost about 1800 ETH, about $3.34 million. According to the analysis of SlowMist, the root cause is that ProcessRoute does not perform any checks on the route parameters passed in by the user, which leads the attacker to use this problem to construct a malicious route parameter so that the Pool read by the contract is created by the attacker. On April 19, SushiSwap released a postmortem analysis report stating that due to 18 replayed transactions, the 1,800 WETH initially depleted from the first user’s wallet ended up in multiple wallets. A total of 885 ETH have been refunded so far. Of these, approximately 685 ETH were sent to Sushi core contributors to operate the multisig, 190 ETH were sent to affected users, and 10 ETH were sent to the Sushi rescue contract.

The DeFi lending agreement Sentiment stated that the team discovered abnormal lending activities. This malicious use led to the theft of about $966,000 from Sentiment on the Arbitrum network. The root cause is the read-only reentrancy of Balancer. On April 7, Sentiment announced that it had successfully recovered more than $900,000 of the stolen funds, leaving the remaining $95,000 as a reward for the attackers.

On April 3, MEV bots suffered a malicious sandwich attack that cost them around $25 million. Data on the chain shows that the malicious verifier who attacked the MEV bots today has been punished by Slash and kicked out of the verifier queue. According to SlowMist analysis, the reason why the MEV bots was attacked was that even if the beacon block was incorrect, the relay still returned the payload to the proposer, which resulted in the proposer being able to access the content of the block before another block was finalized. The attacker takes advantage of this problem to maliciously construct an invalid block, so that the block cannot be verified, and the relay cannot broadcast (the status code is 202) to obtain the transaction content in advance. mev-boost-relay has urgently released a new version to alleviate this problem, and it is recommended that relay operators upgrade the relay in time.

The cross-chain bridge Allbridge was hacked and lost about $570,000 (including about 280,000 BUSD and about 290,000 USDT). The root cause appears to be manipulation of the Swap price of the pool. The hacker played the dual role of liquidity provider and trader, draining the funds in the pool. On April 4, Allbridge tweeted: "The owner of address 0xC578 contacted us and refunded 1,500 BNB (approximately $463,600), and the remaining funds will be considered a white hat bounty for this individual.

According to a Telegram announcement, the DAO Maker project Degen Zoo is suspected to have been hacked on Binance Oracle. At present, the project team has suspended the game and launched an investigation. No loopholes have been found yet, and better animals cannot be hatched through smart contract errors.

According to official news, the zkSync team announced the cause of the downtime on Twitter. Block generation stopped due to a block queue database failure. Despite this, the server API was not affected. Transactions continue to be added to the mempool, and queries are served normally. Although all components had comprehensive monitoring, logging, and alerting, no alerts were triggered because the API was functioning properly.

The address of Patricio Worthalter, founder of POAP, was attacked by phishing. The attacker transferred 85,898 RPL (approximately $3.83 million) from Worthalter’s address to DEX, and sold all RPL at a price of 1,802 ETH (approximately $3.25 million). price drop.

Safemoon, a DeFi protocol based on the BNB chain, was attacked, and its liquidity pool lost nearly $8.9 million. Safemoon CEO John Karony said on Twitter: "This security incident affected the SFM:BNB LP pool and other LP pools on DEX were not affected. We have located the suspected vulnerability and fixed it. " According to analysis, the recent update may have introduced a "public destruction vulnerability", which facilitated hacker attacks. The hacker was able to use code functionality to artificially inflate the price of SFM tokens, then sell enough tokens back to the liquidity pool in the same transaction, effectively draining WBNB from the contract. On April 20, the SafeMoon attacker returned 80% of the stolen funds, that is, transferred 21,804 BNB (approximately $7.2 million) to the SafeMoon vault wallet, leaving the remaining 20% as a bounty.

EC token deployer addresses withdrew approximately $43,800 from the liquidity pool.

Kokomo Finance conducted an exit scam and stole ~$4 million in user funds.

Defunct Swerve Finance still subject of $1.3 million live governance hack

The FASTSWAP (FAST) project on BNB Chain was attacked by a flash loan and lost 26.77 BNB

According to news, the NFT series "Archive of PEACEMINUSONE" released by Korean singer Quan Zhilong has the previously disclosed CVE-2022-38217 general vulnerability, and the possibility of being used by hackers cannot be ruled out.

Circle tweeted that the Circle Chief Strategy Officer's Twitter account (@ddisparte) has been taken over by a scammer. Any link to an offer is a scam. We are investigating this situation and taking appropriate action. Earlier, Circle’s Chief Strategy Officer tweeted that a loyalty rewards distribution program would be launched for USDC holders. However, the tweet has now been deleted.

Indexed Finance's ORCL5 Token contract was attacked by a flash loan and lost $9,925. Root cause preliminary analysis is that "calcSingleOutGivenPoolIn()" calculates wrong value of tokenAmountOut.