Malware
Klackring
Microsoft describes that threat actor ZINC is using Klackring as a malware dropped by ComeBacker, both being used to target security researchers.
Klackring is a Windows malware family operated by Lazarus Group.
Background
Per Microsoft, the threat actor ZINC deploys Klackring as a payload dropped by ComeBacker, with both tools leveraged against security researchers.
Source: Malpedia (Fraunhofer FKIE).