[LITTLELAMB.WOOLTEA](https://attack.mitre.org/software/S1121) is a backdoor that was used by UNC5325 during [Cutting Edge](https://attack.mitre.org/campaigns/C0029) to deploy malware on targeted Ivanti Connect Secure VPNs and to establish persistence across system upgrades and patches.(Citation: Mandiant Cutting Edge Part 3 February 2024)