Hackers are sending emails to Australian banks asking for large payments in Monero, and threatening DDoS attacks if their demands aren’t met.
Banks and other organizations from the Australian financial sector have been the targets of an extensive extortion campaign over the past week.
A threat group has been emailing victims with threats to carry out distributed denial of service (DDoS) attacks unless the organizations pay hefty ransom fees in the Monero (XMR) cryptocurrency.
The ACSC said that based on current evidence, the attackers have not followed through on any of their threats, and no DDoS attacks have been observed.
The threats received by Australian organizations over the past week are part of a global ransom denial of service (RDoS) campaign that began in October 2019.
As ZDNet reported at the time, initial extortion attempts targeted banks and other companies in the financial sector. However, following our initial article, these threats diversified and hackers also targeted other industry verticals.
From ransom demands against banks in Singapore and South Africa, subsequent threats were also made against telecom companies in Turkey, internet service providers in South Africa, and online betting and online gambling portals across Southeast Asia, just to name a few.
The extortion demands continued through subsequent months, and hackers methodically expanded operations to target tens of countries from all continents across the globe.
In some cases, attackers followed through on their threats, but not against all targets, as it would have been impossible to muster the DDoS resources to attack all threatened parties. However, ZDNet can confirm that several attacks have taken place against companies targeted part of this ransom campaign.
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