Lorenz Ransomware Intrusion: Understanding Your Risk
The Arctic Wolf Labs team recently investigated a Lorenz ransomware intrusion, which leveraged a Mitel MiVoice VOIP appliance vulnerability (CVE-2022-29499) for initial access and Microsoft’s BitLocker Drive Encryption for data encryption. Lorenz is a ransomware group that has been active since at least February 2021 and like many ransomware groups, performs double-extortion by exfiltrating data before encrypting systems. Over the last quarter, the group has primarily targeted small and medium businesses (SMBs) located in the United States, with outliers in China and Mexico.