Threat Group Cards: A Threat Actor Encyclopedia Archived: 2026-04-05 23:08:27 UTC Home > List all groups > List all tools > List all groups using tool PhanDoor Tool: PhanDoor Names PhanDoor Category Malware Type Backdoor Description (AhnLab) Phandoor was used from January 2016 to the summer of 2017. It is characterized by having the string 'S^%' main character strings. (E.g. S^%s\cmd.exe, S^nehomegpa.dll) However, some variants found in 2017 did not contain character string, 'Anonymous?' When Phandoor is executed, it initializes and tries to connect to C&C server. At this time, the string 'Anonymous?' is se check whether that the server is functioning properly. After that, it receives commands from the C&C server such as to execute the cmd.exe file. Information AlienVault OTX Last change to this tool card: 23 April 2020 Download this tool card in JSON format All groups using tool PhanDoor Changed Name Country Observed APT groups   Lazarus Group, Hidden Cobra, Labyrinth Chollima 2007-May 2025 1 group listed (1 APT, 0 other, 0 unknown) Source: https://apt.etda.or.th/cgi-bin/listgroups.cgi?u=33b662b7-1e05-4a52-bf0a-35358da6a780 https://apt.etda.or.th/cgi-bin/listgroups.cgi?u=33b662b7-1e05-4a52-bf0a-35358da6a780 Page 1 of 1