[LookBack](https://attack.mitre.org/software/S0582) is a remote access trojan written in C++ that was used against at least three US utility companies in July 2019. The TALONITE activity group has been observed using [LookBack](https://attack.mitre.org/software/S0582).(Citation: Proofpoint LookBack Malware Aug 2019)(Citation: Dragos TALONITE)(Citation: Dragos Threat Report 2020)