A type of cryptocurrency mining malware has spread due to an exploit developed by the US National Security Agency, cybersecurity researchers say.
According to Dr.Web, a Russian anti-virus vendor, the NSA's "DoublePulsar" backdoor – which was leaked earlier this year by a group called the Shadow Brokers – allows the entry of a Trojan program that installs software to secretly mine the privacy-oriented digital currency monero.
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In a 15th June blog post, Dr.Web laid out the nuts and bolts of the malware, noting:
"This malicious program, designed for mining the Monero XMR$465.94 cryptocurrency, was dubbed Trojan.BtcMine.1259. Trojan.DownLoader24.64313 downloads the miner to a computer. This loader Trojan is distributed via the backdoor DoublePulsar."
It's not immediately clear how many machines have been infected with the malware due to the NSA exploit, and a representative for the company wasn't immediately available to comment when reached.
Wired reported in April that tens of thousands of machine were impacted following the exploit's release.
DoublePulsar has also been identified as a factor in the recent "WannaCry" ransomware attacks, which impacted hundreds of thousands of computers across the globe.
KuCoin captured a record share of centralised exchange volume in 2025, with more than $1.25tn traded as its volumes grew faster than the wider crypto market.
What to know:
KuCoin recorded over $1.25 trillion in total trading volume in 2025, equivalent to an average of roughly $114 billion per month, marking its strongest year on record.
This performance translated into an all-time high share of centralised exchange volume, as KuCoin’s activity expanded faster than aggregate CEX volumes, which slowed during periods of lower market volatility.
Spot and derivatives volumes were evenly split, each exceeding $500 billion for the year, signalling broad-based usage rather than reliance on a single product line.
Altcoins accounted for the majority of trading activity, reinforcing KuCoin’s role as a primary liquidity venue beyond BTC and ETH at a time when majors saw more muted turnover.
Even as overall crypto volumes softened mid-year, KuCoin maintained elevated baseline activity, indicating structurally higher user engagement rather than short-lived volume spikes.
"Gold and silver casually adding an entire bitcoin market cap in a single day," wrote one crypto analyst.
What to know:
Bitcoin is off its worst levels of the weekend, but still near the year's low at $87,700.
Facing the same news cycle as crypto, precious metals continued to surge higher, but a quick retreat from their highs on Monday suggested a bit of exhaustion was setting in.
Analysts remain dour on the outlook for crypto prices given the looming government shutdown as well as delays in passage of the Clarity Act.