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Crypto Corner

A place to discuss all things cryptocurrency

15 Topics
TylerM
Administrator
TylerMSr. Security Analyst & Community Manager
published in News
Hackathon gone wrong $300M+ (120k wETH) exploited from Solana blockchainCrypto Hack

https://twitter.com/wormholecrypto/status/1489001949881978883 This is the statement from the wormhole network that runs on Solana blockchain The wormhole network was exploited for 120k wETH. ETH will be added over the next hours to ensure wETH is backed 1:1. More details to come shortly. We are working to get the network back up quickly. Thanks for your patience. Here is vitalik literally explaining how this attack might happen. This was less than a month ago. Someone has now done it Source CoinTelegraph https://cointelegraph.com/news/vitalik-buterin-gives-thumbs-down-to-cross-chain-applications This is lots of money lost but apparently the exchange (FTX presumably) will be cutting into their profits to refund the balance to make sure no one’s ETH are lost and are backed 1:1 The memes are fire ​ Apparently they’re asking for a “whitehat agreement” where they let the hacker keep $10Million in and disclose the exploit. ​ Interesting deal we’ll see if the hacker takes it ​ This also happe

9209
Rodney18
New Member
Martin.1
Popular Voice
Martin.1Popular Voice
posted in News
FTX on brink of collapse after Binance abandons rescue

Crypto exchange dashes to fill $8 billion hole as investors write down equity. JOSHUA OLIVER, RICHARD WATERS, ORTENCA ALIAJ, JAMES FONTANELLA-KHAN, WILLIAM LANGLEY, AND CHAN HO-HIM, FT - 11/10/2022, 4:27 PM FTX is on the brink of collapse as chief Sam Bankman-Fried races to secure billions of dollars to salvage his empire after Binance ditched an 11th-hour rescue of one of the world’s biggest crypto exchanges. Venture capital firm Sequoia Capital said it would mark down its $214 million investment in FTX to zero after a run on the exchange in recent days blew a massive hole in its balance sheet and cast serious doubts over its survival. “In recent days, a liquidity crunch has created solvency risk for FTX,” Sequoia said in a note on Wednesday to investors in its fund. The abrupt change in fortune for FTX and its sister trading firm Alameda Research marks a spectacular fall for Bankman-Fried, a 30-year-old trader and entrepreneur who is one of the industry’s most prominent figures. Bank

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Martin.1
Popular Voice
TylerM
Administrator
TylerMSr. Security Analyst & Community Manager
posted in News
Coinhive shutting down

Coinhive has just made public that they will be shutting down their service on March 8th. Coinhive has become infamous the past year as the innovator behind the javascript based cryptomining service. However, that service quickly turned into the criminal cryptojacking attack campaigns that became so popular in 2018 infecting millions of sites and netting criminals millions in cryptocurrency at victims expense. I honestly did not see this happening, but I do understand. I believed that coinhive didn't intend for their creation to be abused by criminals. However, they still kept 30% of ALL the earnings. Most of that profit came from illicit mining which has earned them a lot of bad press. 2018 was a terrible year for the price of XMR(monero) which means their service is a lot less profitable now. Combined with the fact that the XMR dev team hard-forked the coin and changed the difficulty of the hashrate means Coinhive is making very little money from actual legitimate miners. They create

502
MajorHavoc
Bronze VIP
tmcmullen
Popular Voice
tmcmullenPopular Voice
posted in News
Cyber Insurance Woes

It’s no surprise to me that cyber insurance companies have cracked down on their policy requirements and forced businesses to meet certain requirements before they will insure them. Companies find it more difficult to get cyber insurance

455
MajorHavoc
Bronze VIP
kleinmat4103
Popular Voice
kleinmat4103Popular Voice
posted in Wallet Security
Holding Bitcoin? Here's How to Keep Your Crypto Safe

Conventional wisdom dictates that if you've got more virtual currency than you'd be comfortable carrying around on your person, or you intend to hold it as a long-term investment, you should keep it in "cold storage." This could be a computer that's disconnected from the internet or a specialized USB drive called a hardware wallet. <<Full Article>>

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MajorHavoc
Bronze VIP
D
New Voice
deanosborneNew Voice
posted in Common Scams
Proximity Websites

Not sure what the official term is but my wife got scammed into paying £95 to renew her driving licence. It should have only been £14. The official site was down and she ended up on this one in a panic. They make it legit by offering services she doesnt really need like free replacement if lost. We tried to cancel. Under their terms we could cancel if they havent processed anything yet and we had one person clearly stalling asking questions whilst another processed it. It could be worse but still annoying.

372
D
New Voice
K
khumphreyRetired Webrooter
published in Wallet Security
Cryptocurrency: storage, scams and hacks, oh my!Tutorial

Hey there Webroot Community, We are back with another series of informational posts on the topic of Cryptocurrency! The world of cryptocurrency is still an enigma to most people, and we’d like to do our part to clear up some of the confusion. There are a few things that new crypto users struggle with in regard to its usage, storage, and prevention of being scammed. In this installment of the crypto series, these are the topics we will be covering: 1) Storage2) How to use safely3) Infamous “crypto exchange mishaps” 4) Pros vs. cons of crypto and blockchain tech Storage Learning how to securely store your cryptocurrency is the most important process to learn before jumping into this new world. First, it’s important that you learn the difference between a “public” and a “private” key. Public key: Think of this as your PO box address that you give out to people/companies in order to receive packages. Your public key in terms of cryptocurrency is a string of letters/numbers that you can fre

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MunkeyMan
New Voice
C
Fresh Face
car100opFresh Face
asked in Common Scams
Crafty BRATA banking trojan wipes Android devices just after successfully conducting wire fraud.

This cruel Android malware wipes phones after stealing money https://www.zdnet.com/article/this-cruel-android-malware-wipes-phones-after-stealing-money/?ftag=TRE-03-10aaa6b&bhid=%7B%24external_id%7D&mid=%7B%24MESSAGE_ID%7D&cid=%7B%24contact_id%7D&eh=%7B%24CF_emailHash%7D Hi……...What do you guys/girls know about this one, and are our Androids protected from this? Thanks, Tony

592
TylerM
Administrator
K
khumphreyRetired Webrooter
published in Common Scams
Crime and Crypto: An Evolution in Cyber ThreatsBlog

Cybercriminals are constantly experimenting with new ways to take money from their victims. Their tactics evolve quickly to maximize returns and minimize risk. The emergence of cryptocurrency has opened up new opportunities to do just that. To better understand today’s threat landscape, it’s worth exploring the origins of cryptocurrencies and the progress cybercriminals have made in using it to advance their own interests. The FBI screen lock Source: @DavidSGingras on Twitter Many readers may remember the infamous FBI lock malware that would pop up and prevent users from using their computer at startup. The malware presented the (false) claim that the victim had downloaded copyrighted material illegally or had watched pornography. This was a common and successful scam that made millions globally by localizing the “official” police entity in order to legitimize the threat. The money it made was transferred via Ukash and MoneyPak, which were essentially gift cards available at local conv

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B
Fresh Face
TylerM
Administrator
TylerMSr. Security Analyst & Community Manager
published in News
Hacker Files Podcast: Bitcoin Scams are on the RisePodcast

https://www.buzzsprout.com/762053/9534086 Take a listen here! The accelerated demand for bitcoin has provided cybercriminals with a new playground. It’s untraceable, making it perfect for extortion and impersonation. In fact, reported by CBS News, Americans have lost more than $80 million in cryptocurrency investment scams since October, which represents a 1,000% increase from the fall of 2019, according to FTC data. This podcast explores this attack vector and the common methods and scams, including modern mining malware such as LemonDuck and LemonCat.

370
TylerM
Administrator
J
New Member
JodaniNew Member
asked in Wallet Security
Win32.LocalInfect.2 in MONERO GUI

I downloaded the Monero wallet from the official web site at: https://www.getmonero.org/ Webroot considers the installation file to be infected. See below: Can you please let me know if this file is actually infected - or if Webroot is being overly cautious. It seems strange that Monero would release an infected file from their own site. Thanks

1341
TripleHelix
Moderator
K
khumphreyRetired Webrooter
posted in News
BTC has hit an all time high - Let's talk about it

With Bitcoin reaching an all time high of $66k, this will catalyze a HUGE amount of news and social media coverage around Cryptocurrency. That “guy” on Twitter or Youtube will begin making statements like “Throw your retirement fund at X Crypto or Y Crypto - it’s going to the m00n!” Traditional financial news outlets will begin making statements that crypto is a “bubble” and is going to pop tomorrow. And then there’s you, stuck in the middle reading and listening to this frenzy unsure of what to do about this waterfall of information. Let me start by saying this: I am not a financial advisor and nothing that I say here should be taken as gospel. I just want people to be prepared to invest wisely and with some level of understanding of what they’re getting into. I have been involved in the world of Cryptocurrency for around six years and would like to share some general insights with anyone who is less familiar with this topic. Let’s go through some main points you should keep in mind i

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K
TylerM
Administrator
TylerMSr. Security Analyst & Community Manager
published in News
The Rise and Fall of Cryptocurrency: Bitcoin and MoneroRise and Fall of Crypto

A (Not Really) Brief History of Bitcoin and Monero Note: this is the first installment in a 3-part post. Bitcoin turned 10 years old this year and it’s only getting more and more exposure. Having invented the revolutionary internet technology known as “Blockchain”, Bitcoin has only been gaining hype ever since the first genesis block was mined into existence. At first, it started out is just a joke of an idea and websites would give bitcoins away for free just for visiting. This was back when the currency itself was worth next to nothing. That all changed with the advent of Silk Road, an underground market on the encrypted dark web for buying and selling goods otherwise illegal or extremely difficult to purchase in most countries. The site’s buyers and sellers remained effectively anonymous to one another and were almost impossible to track. It’s usually criminals and hackers that test and prove the utility of new technologies before widespread adoption. Suddenly, people saw the real u

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N
New Member
TylerM
Administrator
TylerMSr. Security Analyst & Community Manager
published in News
The Rise and Fall of Cryptocurrency: 2018 Bitcoin Bear MarketRise and Fall of Crypto

Note: this is the third installment in a 3-part post. If you haven’t already, read part 1 and part 2 . 2018 was a brutal year for Bitcoin and subsequently all other altcoins utilizing blockchain technology. The start of 2018 had Bitcoin around $17,000; by the end of 2018 it had dropped to around $3,800. Not only was this devastating for investors, but cybercriminals also took a major financial hit (your heart weeps for them, I know.) What’s interesting is that we also saw major decline with cryptomining attacks as the price decreased, presumably because the attacks were no longer as profitable. In late February ($3700), Coinhive abruptly announced the impending end to its service. The stated reason: it was no longer economically viable to run. To be honest, I did not see this coming, but I do understand. It’s reasonable to think that Coinhive didn’t intend for their creation to be abused by criminals, but they have still kept 30% of ALL the earnings generated by their script—which was

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TylerM
Administrator
TylerM
Administrator
TylerMSr. Security Analyst & Community Manager
published in News
The Rise and Fall of Cryptocurrency: MiningRise and Fall of Crypto

The Rise of Mining Attacks Note: this is the second installment in a 3-part post. Read part 1 here . Monero—a cryptocurrency like Bitcoin, but without a public ledger—is basically at the center of all of today’s cryptomining threats. In fact it’s been estimated that over 85% of all illicit mining is on the Monero blockchain. Most of these attacks utilize an open source miner called XMRig and will use exploits to gain credentials and spread laterally throughout the network. They do this using the Shadow Broker exploits you probably already heard of during the famous WannaCry ransomware outbreak in 2017. The core idea is very simple: infect a victim with a legitimate, benign miner executable. Run the miner without the victim’s knowledge for as long as possible and monitor its hash rate using a portal that legitimate miners use, because they have no idea that you’re doing this illegally. It’s pretty sneaky. This isn’t money out of thin air. Users are still on the hook for CPU usage, which

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TylerM
Administrator

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