RedPenguin

The [RedPenguin](https://attack.mitre.org/campaigns/C0056) project was launched by Juniper in July 2024 to investigate reported malware infections of Juniper MX Series routers. [RedPenguin](https://attack.mitre.org/campaigns/C0056) activity was separately attributed to [UNC3886](https://attack.mitre.org/groups/G1048) and included the deployment of multiple custom versions of the publicly-available TINYSHELL backdoor on Juniper routers.(Citation: Juniper RedPenguin MAR 2025)(Citation: Mandiant UNC3886 Juniper Routers MAR 2025)