ESET reviewed major Lazarus operations and the technical fingerprints used to connect newer activity to the group, including Operation Troy, DarkSeoul, Operation Blockbuster, the Bangladesh SWIFT theft, FASTCash-related banking attacks, WannaCryptor, cryptocurrency thefts, and Bankshot. The analysis highlights recurring traits such as dynamic Windows API resolution, fake TLS traffic, TCP backdoors, self-deleting batch files, RC4-like encryption, and shared infrastructure or response strings. PE Rich Header analysis suggested Lazarus tooling was built in multiple Visual Studio environments at the same time, implying more than one development cell or lab. ESET also documented less-publicized Lazarus-linked cases, including early WannaCryptor variants, Java downloaders, a custom DXPack-based packer, server-side C2 components, and a destructive KillDisk attack on a Central American online casino.