Infostealer
TerraStealer
aka StealerOne · SONE · Taurus Loader Stealer Module
According to QuoINT, TerraStealer (also known as SONE or StealerOne) is a generic reconnaissance tool, targeting for example email clients, web browsers, and file transfer utilities.
TerraStealer, also known as StealerOne, SONE, Taurus Loader Stealer Module, is a Windows infostealer operated by VENOM SPIDER and FIN6.
Background
QuoINT describes TerraStealer (also called SONE or StealerOne) as a general-purpose reconnaissance tool that goes after targets such as email clients, web browsers, and file transfer applications. It is attributed to Golden Chickens.
Source: Malpedia (Fraunhofer FKIE).