Hotmail.opk

: In OpenBullet 2, the .opk extension serves as a "repacked" container for automation scripts (configs). A "hotmail.opk" would specifically bundle all the logic, headers, and request sequences needed to automate interactions with Hotmail (Outlook) web services, such as account checking or data parsing. Other Possible Contexts

If you encountered hotmail.opk as an unexpected email attachment or on a suspicious download site, exercise extreme caution. hotmail.opk

$ file hotmail.opk