According to Group-IB's Threat Intelligence &amp; Attribution system, the alleged database was published on a fraudulent resource known for reselling data that has been published on various data-leak websites. Compromise of Air India's network In mid-February 2021, Group-IB's Threat Intelligence &amp; Attribution system detected infected devices that were part of Air India's computer network. Starting from at least February 23, 2021, a device inside the company's network communicated with a server with the IP address 185[.]118[.]166[.]66. The threat actor collected information inside the local network, including names of network resources and their addresses. Below are examples of commands that were used for lateral movement: . The name of the campaign, ColunmTK, is derived from these initially discovered domains. ColunmTK Timeline Connections with APT41 Group-IB researchers believe with moderate confidence that the ColunmTK campaign was carried out by APT41, a prolific Chinese-speaking nation-state threat actor. According to Group-IB's Threat Intelligence &amp; Attribution system, the threat actor has been active since at least 2007. This IP address was used as an A record for two domains: server04[.]dns04[.]com and service04[.]dns04[.]com. The IP address was also used to host the Cobalt Strike framework and shared an SSL certificate, b3038101fd0e8b11c519f739f12c7e9b60234d3b, with ColunmTK's IP address 185[.]118[.]166[.]66. The file is very similar to one used by APT41 in a different campaign described by FireEye researchers