Besides the New Zealand Stock Exchange, cybercriminals have been conducting round-the-clock DDoS attacks on MoneyGram, PayPal, and Venmo for the past three days.
The New Zealand Stock Exchange (NZX) has suspended trading due to systematic DDoS attacks, Reuters reported, citing sources within the exchange.
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It is reported that the attacks on the stock exchange have been going on for the third day and are foreign in nature through an unnamed network service provider.
In the last hour of the trading session on Tuesday, the functionality of the exchange also suffered.
“NZX continues to investigate the source of the problem. We will provide additional information as it becomes available, ”the company said in a statement.
The ZDNet edition, citing anonymous sources, writes that the pattern of the attack on the stock exchange is similar to that used days earlier against MoneyGram, PayPal, and Venmo.
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In the course of digital extortion, a group of cybercriminals sends out emails demanding payment in Bitcoin, the newspaper writes.
Bitcoin is often used as a means of payment among cybercriminals. So, for example, the US Federal Intelligence Bureau found that through a viral software called Ryuk, the ransomware was able to earn $61,26 million in BTC in a year.
Crysis / Dharma viruses raised $24,48 million over a nearly three-year period. The third largest virus was Bitpaymer, which was able to steal $8,04 million within two years.
Provider Akamai Technologies found out that cybercriminals are using sophisticated DDoS attacks that reach 200 Gbps at their peak.
The ZDNet source also described the attackers as a group with “above average DDoS attack skills.”
In the case of NZX, attackers repeatedly targeted Spark, the exchange’s hosting provider, which also resulted in downtime for the provider’s other customers.
Attackers often change the protocols that have been abused for DDoS attacks, keeping the victim in suspense about how the next attack will occur, the newspaper notes.