[TSCookie](https://attack.mitre.org/software/S0436) is a remote access tool (RAT) that has been used by [BlackTech](https://attack.mitre.org/groups/G0098) in campaigns against Japanese targets.(Citation: JPCert TSCookie March 2018)(Citation: JPCert BlackTech Malware September 2019). [TSCookie](https://attack.mitre.org/software/S0436) has been referred to as [PLEAD](https://attack.mitre.org/software/S0435) though more recent reporting indicates a separation between the two.(Citation: JPCert PLEAD Downloader June 2018)(Citation: JPCert BlackTech Malware September 2019)