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The Iranian nation-state actor known as TA453 has been linked to a new set of spear-phishing attacks that infect both Windows and macOS operating systems with malware
Hackers used a little to do a lot, cracking a high-value target with hardly more than the living-off-the-land tools (PowerShell especially) found on any standard Windows computer.
A new PowerShell-based malware dubbed PowerExchange was used in attacks linked to APT34 Iranian state hackers to backdoor on-premise Microsoft Exchange servers. [...]
Details have emerged about a previously undocumented and fully undetectable (FUD) PowerShell backdoor that gains its stealth by disguising itself as part of a Windows update process
SafeBreach supposedly spots somewhat stealthy subversive software SafeBreach Labs says it has detected a novel fully undetectable (FUD) PowerShell backdoor, which calls into question the accuracy of threat naming.…