[Sibot](https://attack.mitre.org/software/S0589) is dual-purpose malware written in VBScript designed to achieve persistence on a compromised system as well as download and execute additional payloads. Microsoft discovered three [Sibot](https://attack.mitre.org/software/S0589) variants in early 2021 during its investigation of [APT29](https://attack.mitre.org/groups/G0016) and the [SolarWinds Compromise](https://attack.mitre.org/campaigns/C0024).(Citation: MSTIC NOBELIUM Mar 2021)