Threat Group Cards: A Threat Actor Encyclopedia Archived: 2026-04-05 19:58:34 UTC Home > List all groups > List all tools > List all groups using tool YamaBot Tool: YamaBot Names YamaBot Kaos Category Malware Type Backdoor Description (JPCERT/CC) YamaBot malware communicates with C2 servers using HTTP requests. The following is a list of function names included in the sample that targets Windows OS. It is the attacker that named the malware as Yamabot. Those targeting Windows OS have functions specific to it, such as creating and checking Mutex. Information Malpedia Last change to this tool card: 28 December 2022 Download this tool card in JSON format All groups using tool YamaBot 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=f32f2905-4201-428e-974d-7e3d2b7dc53c https://apt.etda.or.th/cgi-bin/listgroups.cgi?u=f32f2905-4201-428e-974d-7e3d2b7dc53c Page 1 of 1