Threat Group Cards: A Threat Actor Encyclopedia Archived: 2026-04-05 23:09:50 UTC Home > List all groups > List all tools > List all groups using tool SIXPACK Tool: SIXPACK Names SIXPACK Category Malware Type Tunneling Description (Mandiant) SIXPACK is an ASPX web shell written in C# that functions as a tunneler. SIXPACK accepts HTTP form data that contains a remote host and TCP port to connect to, a timeout value, and Base64-encoded data to send after connecting to the specified host. Response data is read by SIXPACK and returned to the original client. Information Last change to this tool card: 26 December 2021 Download this tool card in JSON format All groups using tool SIXPACK Changed Name Country Observed APT groups   FIN13 [Unknown] 2016   1 group listed (1 APT, 0 other, 0 unknown) Source: https://apt.etda.or.th/cgi-bin/listgroups.cgi?u=f2ed5fad-1a2b-45a2-bcf7-3cbbc5a9531c https://apt.etda.or.th/cgi-bin/listgroups.cgi?u=f2ed5fad-1a2b-45a2-bcf7-3cbbc5a9531c Page 1 of 1