Threat Group Cards: A Threat Actor Encyclopedia Archived: 2026-04-05 19:54:49 UTC Home > List all groups > List all tools > List all groups using tool Elirks Tool: Elirks Names Elirks Category Malware Type Backdoor, Info stealer Description (Palo Alto) Elirks, less widely known than PlugX, is a basic backdoor Trojan, first discovered in 2010, that is primarily used to steal information from compromised systems. We mostly observe attacks using Elirks occurring in East Asia. One of the unique features of the malware is that it retrieves its C2 address by accessing a pre-determined microblog service or SNS. Attackers create accounts on those services and post encoded IP addresses or the domain names of real C2 servers in advance of distributing the backdoor. We have seen multiple Elirks variants using Japanese blog services for the last couple of years. Information Malpedia AlienVault OTX Last change to this tool card: 13 May 2020 Download this tool card in JSON format All groups using tool Elirks Changed Name Country Observed APT groups Blackgear 2018-Jul 2018 https://apt.etda.or.th/cgi-bin/listgroups.cgi?u=51e51b03-0133-427f-8465-bceeefc52ee9 Page 1 of 2 Bronze Butler, Tick, RedBaldNight, Stalker Panda 2006-Apr 2021   Scarlet Mimic 2015-Aug 2022   3 groups listed (3 APT, 0 other, 0 unknown) Source: https://apt.etda.or.th/cgi-bin/listgroups.cgi?u=51e51b03-0133-427f-8465-bceeefc52ee9 https://apt.etda.or.th/cgi-bin/listgroups.cgi?u=51e51b03-0133-427f-8465-bceeefc52ee9 Page 2 of 2