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TrickBot malware may have stolen as many as 250 million email accounts, including some belonging to governments in the US, UK and Canada. The malware isn’t new. In fact, it’s been circulating since 2016. But according to cybersecurity firm Deep Instinct, it has started harvesting email credentials and contacts. The researchers are calling this new approach TrickBooster, and they say it first hijacks accounts to send malicious spam emails and then deletes the sent messages from both the outbox and trash folders.

So everything we just said about metamorphic and polymorphic malware also applies to metamorphic and polymorphic ransomware.

Metamorphic and Polymorphic Malware Families

With consistent functionalities regardless of code, malware is often grouped into families so security teams can look for similar functions and code segments in efforts to protect their organizations. Some of the most well-known malware families include:

Today, thanks to extraordinary sleuthing by the F.B.I. and some of the world’s premier cybersecurity experts, there are answers to these questions. They offer an unsettling reminder of the remarkable sophistication of a growing network of cybercriminals and nation states — and the vulnerability of not just our computers, but the internet itself.


It infected 10 million computers. So why did cybergeddon never arrive?

Credit Credit Cathryn Virginia

For as smart as artificial intelligence systems seem to get, they’re still easily confused by hackers who launch so-called adversarial attacks — cyberattacks that trick algorithms into misinterpreting their training data, sometimes to disastrous ends.

In order to bolster AI’s defenses from these dangerous hacks, scientists at the Australian research agency CSIRO say in a press release they’ve created a sort of AI “vaccine” that trains algorithms on weak adversaries so they’re better prepared for the real thing — not entirely unlike how vaccines expose our immune systems to inert viruses so they can fight off infections in the future.