C0015

[C0015](https://attack.mitre.org/campaigns/C0015) was a ransomware intrusion during which the unidentified attackers used [Bazar](https://attack.mitre.org/software/S0534), [Cobalt Strike](https://attack.mitre.org/software/S0154), and [Conti](https://attack.mitre.org/software/S0575), along with other tools, over a 5 day period. Security researchers assessed the actors likely used the widely-circulated [Conti](https://attack.mitre.org/software/S0575) ransomware playbook based on the observed pattern of activity and operator errors.(Citation: DFIR Conti Bazar Nov 2021)