S0072OwaAuth

[OwaAuth](https://attack.mitre.org/software/S0072) is a Web shell and credential stealer deployed to Microsoft Exchange servers that appears to be exclusively used by [Threat Group-3390](https://attack.mitre.org/groups/G0027). (Citation: Dell TG-3390) Documented platforms: Windows. Attributed to ATT&CK group: Threat Group-3390. Catalogued in ATT&CK 14.1. 2 references curated.