New Crypto Dusting Attack Gives Cash, Takes Reputation

This new form of crypto wallet fraud enlists unwary consumers and companies to help defeat anti-money laundering methods for law enforcement and regulators.

A fraction of a bitcoin anonymously dropped into your cyberwallet may seem like a bit of good fortune, but opinions can change rapidly when youre labeled a likely criminal. Thats the situaton companies and individuals are finding themselves in when theyre the victims of crypto-dusting - one of the newer, and more challenging, hacks involving popular cryptocurrency.
The anonymous bitcoins were coming from BestMixer.io, a cybercurrency mixer often used to anonymize cybercurrency transactions to improve privacy or hide criminal activity. If you look inside the transaction record, says Dave Jevans, CEO of CipherTrace and chairman of the Anti-Phishing Working Group, you find a plan-text message thats a welcome from the BestMixer team.
But this gift comes with a price: You have engaged in a transaction with a known money-laundering service, so it will raise the risk on your accounts for any exchange that has implemented anti-money laundering protocols, he says.
In addition, creating hundreds of thousands of newly tainted accounts could provide a smokescreen for the illegitimate transactions regulatory algorithms are supposed to catch. As for choosing their victims, Jevans says the methodology is simple: Theyre just putting it in your crypto wallet. When they do a run, they look at the last 75,000 addresses and send to them. When you open up your wallet, its there.
Its logical, but I think its shortsighted, says Mounir Hahad, head of Juniper Threat Labs at Juniper Networks. The whole notion of tainted is specific to the way the algorithms are deployed today. And, he points out, those algorithms can change.
While theyre changing, there are some specific steps that consumers and companies can take to protect themselves. On the consumer side, when you receive money like this — a small amount from an unknown source — the best thing to do is go in and block it from being sent, Jevans says. If you ever spend it, it will wreak havoc with your privacy.
Larger organizations and enterprises have a somewhat more complicated task. Theyll need to work with their vendors on anti-money laundering and be able to cipher out the mixer coin that came from crypto duster attacks, he says.
Fortunately, this is an attack method that may have a short lifespan, according to Hahad. It should be relatively easy to tweak the anti-money laundering algorithms used by regulators and law enforcement to ignore the tiny fractional transactions that are part of the attack.
This is not something that regular folks should be worried about — its for regulators and law enforcement, he explains. It will make their lives more difficult for a while, but as soon as they can patch their algorithms theyll be back in business.
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New Crypto Dusting Attack Gives Cash, Takes Reputation