The LightNeuron Microsoft Exchange backdoor can read, modify or block emails going through the compromised server, and even compose and send new emails.
Source: Researchers discover highly stealthy Microsoft Exchange backdoor – Help Net Security
The LightNeuron Microsoft Exchange backdoor can read, modify or block emails going through the compromised server, and even compose and send new emails.
Source: Researchers discover highly stealthy Microsoft Exchange backdoor – Help Net Security