Threat Post - Attackers Hijack Email Threads Using ProxyLogon/ProxyShell Flaws

Exploiting Microsoft Exchange ProxyLogon & ProxyShell vulnerabilities, attackers are malspamming replies in existing threads and slipping past malicious-email filters.

from Threatpost https://threatpost.com/attackers-hijack-email-threads-proxylogon-proxyshell/176496/

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