[FALLCHILL](https://attack.mitre.org/software/S0181) is a RAT that has been used by [Lazarus Group](https://attack.mitre.org/groups/G0032) since at least 2016 to target the aerospace, telecommunications, and finance industries. It is usually dropped by other [Lazarus Group](https://attack.mitre.org/groups/G0032) malware or delivered when a victim unknowingly visits a compromised website. (Citation: US-CERT FALLCHILL Nov 2017)