Botnet
LightBot
According to Bleeping Computer and Vitali Kremez, LightBot is a compact reconnaissance tool suspected to be used to identify high-value targets for potential follow-up ransomware attacks.
LightBot is a PowerShell botnet.
Background
Per Bleeping Computer and Vitali Kremez, LightBot is a lightweight reconnaissance tool thought to be used for picking out high-value targets ahead of possible subsequent ransomware attacks.
Source: Malpedia (Fraunhofer FKIE).