Confucius has a miscellany of backdoors: sctrls, ByeBye Shell, remote-access-c3, and sip_telephone, to name a few. One of its file stealers, swissknife2, abuses a cloud storage service as a repository of exfiltrated files. At the time of research, there were around 60 victims whose data were uploaded to Confucius-owned cloud storage account. There were also a few thousand files in the account that were later deleted