Threat Group Cards: A Threat Actor Encyclopedia Archived: 2026-04-05 23:48:58 UTC APT group: Sandman Names Sandman (SentinelLabs) Country China Motivation Information theft and espionage First seen 2022 Description (SentinelLabs) In collaboration with QGroup GmbH, SentinelLabs observed over August 2023 a threat activity cluster targeting the telecommunication sector. The activities have been conducted by a threat actor of unknown origin using a novel modular backdoor based on the LuaJIT platform. We dub this threat actor and the backdoor Sandman and LuaDream in reference to what we suspect to be the backdoor’s internal name – DreamLand client. The activities we observed are characterized by strategic lateral movement to specific targeted workstations and minimal engagement, suggesting a deliberate approach aimed at achieving the set objectives while minimizing the risk of detection. Observed Sectors: Telecommunications. Countries: Middle East, Western Europe, and South Asia. Tools used LuaDream. Information Last change to this card: 16 January 2024 Download this actor card in PDF or JSON format Source: https://apt.etda.or.th/cgi-bin/showcard.cgi?u=6e7a3b00-6ff8-414a-b6b3-040ddcfd4e8c https://apt.etda.or.th/cgi-bin/showcard.cgi?u=6e7a3b00-6ff8-414a-b6b3-040ddcfd4e8c Page 1 of 1