Webshells Observed in Post-Compromised Exchange Servers 03/25/2021 08:45 AM EDT Original release date: March 25, 2021 CISA has added two new Malware Analysis Reports (MARs) to Alert AA21-062A: Mitigate Microsoft Exchange Server Vulnerabilities. Each new MAR (AR21-084A and AR21-084B) identifies a webshell observed in post-compromised Microsoft Exchange Servers. After successful exploiting a Microsoft Exchange Server …
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