Security News > 2019 > May > Researchers discover highly stealthy Microsoft Exchange backdoor

An extremely stealthy Microsoft Exchange backdoor can read, modify or block emails going through the compromised mail server and even compose and send new emails. LightNeuron – as the backdoor has been dubbed by ESET researchers – is remotely controlled via emails using steganographic PDF and JPG attachments and is believed to have been used by the Turla cyber espionage group. About LightNeuron The LightNeuron backdoor is the first known instance of a backdoor employing … More → The post Researchers discover highly stealthy Microsoft Exchange backdoor appeared first on Help Net Security.

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