General Bytes crypto ATMs exploited for over $1.6 million

March 18, 2023

General Bytes crypto ATMs exploited for over $1.6 million

A General Bytes Bitcoin ATM, which has a bright orange face with the text "Bitcoin ATM" on it, and a screen showing multiple cryptocurrencies that can be purchased.

General Bytes Bitcoin ATM (attribution)

The largest manufacturer of Bitcoin ATMs, General Bytes, disclosed that attackers had stolen more than $1.6 million by exploiting a vulnerability in their software. The company released a statement on March 18 disclosing the breach, and urging operators of their ATMs to immediately upgrade their software to patch the devices.

In addition to standalone servers, General Bytes' cloud service was impacted, and the company announced that it would be permanently shuttering it. "It is theoretically (and practically) impossible to secure a system granting access to multiple operators at the same time where some of them are bad actors," wrote the company in their statement explaining the decision, apparently unaware that this is something software companies find themselves doing all the time.

This exploit was the second breach suffered by General Bytes this year, after hackers exploited a vulnerability in August 2022 that allowed them to steal customer funds. It's unknown how much was stolen in that attack. The company also patched multiple hardware and software issues in their ATMs in September 2021, after Kraken Security Labs discovered issues including poor security practices that would allow attackers to "walk up to an ATM and compromise it".

"General Bytes Bitcoin ATMs hacked using zero-day, $1.5M stolen", BleepingComputer
"Hackers steal crypto from Bitcoin ATMs by exploiting zero-day bug", BleepingComputer
"Kraken Security Labs Identifies Vulnerabilities In Commonly Used Bitcoin ATM", Kraken Security Labs

March 17, 2023

Thousands lose money to iEarn Bot crypto scam

(attribution)

According to a report by the BBC, a scam called iEarn Bot has impacted thousands of victims across multiple countries. In the scam, victims are convinced to sign up for an "AI intelligent quantitative trading robot" called iEarn Bot, which appears to successfully trade cryptocurrencies on their behalf. However, after a time, victims realize they are not able to withdraw their supposed earnings, nor the funds they've put in.

According to the BBC, dozens of high-profile individuals in Romania, including members of the government and academics, lost money to the scam after it was promoted by technology expert Gabriel Garais — who also says he lost money in the scheme.

iEarn Bot claims to be a US-based company, although its website is full of false information. The person named as the company's founder told the BBC he has nothing to do with the scheme, and companies and institutions listed as "strategic partners" say there is no such partnership.

The BBC identified one cryptocurrency wallet that received payments from around 13,000 others totaling nearly $1.3 million.

"Thousands may have lost out to crypto trading app", BBC

March 17, 2023

Thwarted hacker asks security firm to reimburse gas fees

(attribution)

File this one under "the audacity".

On March 17, blockchain security company BlockSec observed an attacker trying to exploit a vulnerability in the NFT lending project Paraspace. Although they had successfully identified a vulnerability that could have allowed them to steal 2,900 ETH (a bit over $5 million), their attempt to execute the hack failed because they didn't correctly estimate what it would cost them in gas fees.

After observing the attempt, BlockSec executed a whitehat rescue, where they successfully executed the same attack to remove the funds from Paraspace and secure them until they could return them to the project team.

Incredibly, the exploiter sent an on-chain message to BlockSec: "hey man, I am the one who made the contract you just copied, I couldn't make it work for a stupid gas estimation error. since I lost a lot of money trying to make it work, it would be cool to get at least some of them back... best of luck". Altogether, the would-be attacker spent around 0.7 ETH (~$1,200) on gas fees while trying to pull off the hack.

"BlockSec prevents $5 million from being stolen on Paraspace", The Block

March 15, 2023

International group of law enforcement agencies shuts down ChipMixer

Law enforcement from the United States, Germany, and the European Union worked together to take down the ChipMixer cryptocurrency tumbler, which they allege had been used to launder $3 billion since 2017 related to "ransomware, darknet market, fraud, cryptocurrency heists and other hacking schemes". The US Department of Justice also charged an individual with money laundering, operating an unlicensed money transmitting business, and identity theft in connection with the project.

According to the US DOJ, ChipMixer had been used to process, among other things, proceeds of the massive March 2022 Axie Infinity hack by a North Korean cybercrime group.

US law enforcement seized two domains and a Github account tied to the organization, and German law enforcement seized ChipMixer's back-end servers and $46 million in cryptocurrency.

"Justice Department Investigation Leads to Takedown of Darknet Cryptocurrency Mixer that Processed Over $3 Billion of Unlawful Transactions", press release

March 14, 2023

Phishers take advantage of fears surrounding the USDC de-peg

(attribution)

When USDC deviated from its dollar peg on March 10, phishers were quick to devise a scheme to take advantage of holders' fears. A group launched a website appearing to be the blog belonging to Circle, the company that backs USDC. On the fake blog, they announced a supposed defi exchange where users would be able to exchange their USDC for stablecoins like Tether.

Holders trying to use the exchange approved transactions which they didn't realize allowed the phishers to drain their ETH. So far, the scammers have stolen around 74 ETH ($130,500).

"'Circle Swap' scam exploits USDC depeg fears, drains ether from wallets", Protos

March 13, 2023

Over $35 million lost as contagion from Euler hack spreads throughout defi

Contagion from the massive exploit of the Euler project has spread to around a dozen defi projects, including Balancer, Angle Protocol, Yearn Finance, InverseFinance, and others. Some are still evaluating if and how they may be affected, and how much they've lost.

Around $11.9 million of tokens were sent from the Balancer defi liqiuidity project to Euler during the attack, prompting Balancer to pause the project.

The Angle Protocol decentralized stablecoin project also disclosed that almost half of the total value locked in the project — around $17.6 million in the USDC stablecoin — were sent to Euler during the hack.

March 13, 2023

Meta pulls the plug on NFTs

(attribution)

In a Twitter thread, Meta (formerly Facebook) Head of Commerce and Fintech Stephane Kasriel announced that they would be "down digital collectibles (NFTs) for now to focus on other ways to support creators, people, and businesses". Meta had only launched its support for NFTs in Facebook and Instagram partway through last year — a bit late to the NFT craze, which had largely cooled by that point.

Mark Zuckerberg had once talked about eventually using NFTs for Meta's metaverse projects, suggesting that eventually "the clothing that your avatar is wearing in the metaverse, you know, [could] be basically minted as an NFT and you can take it between your different places". It sounds like that plan may no longer be on the table now.

March 13, 2023

Euler Finance exploited for almost $200 million

(attribution)

The decentralized lending platform Euler Finance suffered a flash loan attack in which an exploiter stole $197 million from the project. The attacker stole $8.7 million in the Dai stablecoin, $18.5 million in wrapped Bitcoin, $135.8 million in Lido staked Ethereum (stETH), and $33.8 million in the USDC stablecoin. Although Euler was well known for its many code audits, the project had later added a vulnerable function that had not been as heavily audited.

Euler announced that they were aware of the exploit, and were "working with security professionals and law enforcement".

On April 3, Euler Finance announced that they had completed successful negotiations, and that "all of the recoverable funds taken from the Euler protocol on March 13th have now been successfully returned by the exploiter". Unfortunately, based on on-chain transfers, this appeared to only be around $31 million.

"Hackers steal around $200 million from crypto lender Euler Finance", TechCrunch
"Euler Finance Exploiter Returns All ‘Recoverable Funds’ From $200M Hack", Decrypt

March 12, 2023

Regulators shut down crypto-friendly Signature Bank

(attribution)

Two days after the collapse of Silicon Valley Bank and four days after the collapse of Silvergate Bank, the New York Department of Financial Services announced they had taken possession of Signature Bank, a New York-based bank that was a major bank partner for cryptocurrency companies. The bank was placed into receivership with the Federal Deposit Insurance Corporation (FDIC). According to a Signature board member, a bank run of billions of dollars began on Friday after the seizure of Silicon Valley Bank.

A joint statement from federal regulators announced that "All depositors of this institution will be made whole... no losses will be borne by the taxpayer. Shareholders and certain unsecured debtholders will not be protected. Senior management has also been removed."

The shutdown of Signature and the collapse of Silvergate leave many companies in the crypto industry without much access to the US banking system.

"Signature Bank Closure Deals Another Blow to Crypto Industry", Bloomberg
"Joint Statement by the Department of the Treasury, Federal Reserve, and FDIC"
"Signature Bank Is Shut by Regulators After SVB Collapse", Wall Street Journal

March 11, 2023

PeopleDAO loses $120,000 after payment spreadsheet is shared publicly

(attribution)

PeopleDAO is the successor to ConstitutionDAO, a group that made an ill-fated attempt to buy a copy of the US Constitution in November 2021. When the accounting lead for PeopleDAO accidentally shared an editable accounting spreadsheet link in a public Discord channel, an enterprising member of the Discord decided to take advantage. They inserted a row with their own wallet address for a 76 ETH (~$120,000) payment, then hid the row so it wouldn't display to the other viewers.

When team leads reviewed the spreadsheet to sign off on the payments, they didn't see the row, and there was no rollup showing total payments or anything else that would've helped them catch the malicious activity. The transactions were uploaded to a tool allowing asset transfers via CSV, and the required six out of nine multisig members approved the transaction.

PeopleDAO have reported that they're working with various security researchers to track the funds, and have reported the theft to the FBI and FTC.

Thread by PeopleDAO

No JavaScript? That's cool too! Check out the Web 1.0 version of the site to see more entries.