100 - Threat Group Cards: A Threat Actor Encyclopedia Archived: 2026-04-05 22:19:52 UTC APT group: TAG-100 Names TAG-100 (Recorded Future) Storm-2077 (Microsoft) Country China Sponsor State-sponsored Motivation Information theft and espionage First seen 2024 Description (Recorded Future) Recorded Future’s Insikt Group identified new suspected cyber-espionage activity targeting high-profile government, intergovernmental, and private sector organizations globally. This activity, which we are tracking under the temporary group designator TAG100, has employed open-source remote access capabilities and exploited a wide range of internet-facing appliances for initial access. Using Recorded Future® Network Intelligence data, Insikt Group identified the likely compromise of the secretariats of two major Asia-Pacific intergovernmental organizations by TAG100 using the open-source, multi-platform Go backdoor Pantegana. Other targeted organizations include multiple diplomatic entities and ministries of foreign affairs, as well as industry trade associations and semiconductor supply-chain, non-profit, and religious organizations globally. At this time, Insikt Group is continuing to explore potential attribution for this activity; however, the specific targeting and victimology identified align with a suspected espionage motive. Observed Sectors: Embassies, Financial, Government, High-Tech. Countries: Bolivia, Cambodia, Cuba, Djibouti, Dominican Republic, Fiji, France, Indonesia, Italy, Japan, Malaysia, Netherlands, Taiwan, UK, USA, Vietnam. Tools used Cobalt Strike, CrossC2, LESLIELOADER, Pantegana, SparkRAT. Information Last change to this card: 26 December 2024 Download this actor card in PDF or JSON format https://apt.etda.or.th/cgi-bin/showcard.cgi?u=b01702b6-b1dc-4292-8a10-dfb87acfcd59 Page 1 of 2 Source: https://apt.etda.or.th/cgi-bin/showcard.cgi?u=b01702b6-b1dc-4292-8a10-dfb87acfcd59 https://apt.etda.or.th/cgi-bin/showcard.cgi?u=b01702b6-b1dc-4292-8a10-dfb87acfcd59 Page 2 of 2