QBot malware is now distributed in phishing campaigns utilizing PDFs and Windows Script Files (WSF) to infect Windows devices.
Qbot (aka QakBot) is a former banking trojan that evolved into malware that provides initial access to corporate networks for other threat actors. This initial access is done by dropping additional payloads, such as Cobalt Strike, Brute Ratel, and other malware that allows other threat actors to access the compromised device.
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Source: Bleeping Computer