[SUGARUSH](https://attack.mitre.org/software/S1049) is a small custom backdoor that can establish a reverse shell over TCP to a hard coded C2 address. [SUGARUSH](https://attack.mitre.org/software/S1049) was first identified during analysis of UNC3890's [C0010](https://attack.mitre.org/campaigns/C0010) campaign targeting Israeli companies, which began in late 2020.(Citation: Mandiant UNC3890 Aug 2022)