Threat Group Cards: A Threat Actor Encyclopedia Archived: 2026-04-05 22:54:17 UTC Home > List all groups > List all tools > List all groups using tool OS_Check_445 Tool: OS_Check_445 Names OS_Check_445 Category Tools Type Reconnaissance Description No description available yet. Information Last change to this tool card: 20 April 2020 Download this tool card in JSON format All groups using tool OS_Check_445 Changed Name Country Observed APT groups Calypso 2016-Aug 2021 1 group listed (1 APT, 0 other, 0 unknown) Source: https://apt.etda.or.th/cgi-bin/listgroups.cgi?u=f47152ce-8a65-4451-8f0f-810a5fe2d7f7 https://apt.etda.or.th/cgi-bin/listgroups.cgi?u=f47152ce-8a65-4451-8f0f-810a5fe2d7f7 Page 1 of 1