Here's a technical description of such a backdoor found in the wild: https://medium.com/@topjohnwu/huaweis-undocumented-apis-a-backdoor-to-reinstall-google-ser

Here's a technical description of such a backdoor found in the wild: https://medium.com/@topjohnwu/huaweis-undocumented-apis-a-backdoor-to-reinstall-google-services-c3a5dd71a7cd https://medium.com/@topjohnwu/huaweis-undocumented-apis-a-ba...