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VersaMem - S1154 (0a6ec267-83a9-41a5-98c7-57c3ff81e11f)

VersaMem is a web shell designed for deployment to Versa Director servers following exploitation. Discovered in August 2024, VersaMem was used during Versa Director Zero Day Exploitation by Volt Typhoon to target ISPs and MSPs. VersaMem is deployed as a Java Archive (JAR) and allows for credential capture for Versa Director logon activity as well as follow-on execution of arbitrary Java payloads.(Citation: Lumen Versa 2024)

Cluster A Galaxy A Cluster B Galaxy B Level
Network Sniffing - T1040 (3257eb21-f9a7-4430-8de1-d8b6e288f529) Attack Pattern VersaMem - S1154 (0a6ec267-83a9-41a5-98c7-57c3ff81e11f) Malware 1
Exploitation for Client Execution - T1203 (be2dcee9-a7a7-4e38-afd6-21b31ecc3d63) Attack Pattern VersaMem - S1154 (0a6ec267-83a9-41a5-98c7-57c3ff81e11f) Malware 1
VersaMem - S1154 (0a6ec267-83a9-41a5-98c7-57c3ff81e11f) Malware Local Data Staging - T1074.001 (1c34f7aa-9341-4a48-bfab-af22e51aca6c) Attack Pattern 1
Command and Scripting Interpreter - T1059 (7385dfaf-6886-4229-9ecd-6fd678040830) Attack Pattern VersaMem - S1154 (0a6ec267-83a9-41a5-98c7-57c3ff81e11f) Malware 1
VersaMem - S1154 (0a6ec267-83a9-41a5-98c7-57c3ff81e11f) Malware Encrypted/Encoded File - T1027.013 (0d91b3c0-5e50-47c3-949a-2a796f04d144) Attack Pattern 1
VersaMem - S1154 (0a6ec267-83a9-41a5-98c7-57c3ff81e11f) Malware File Deletion - T1070.004 (d63a3fb8-9452-4e9d-a60a-54be68d5998c) Attack Pattern 1
VersaMem - S1154 (0a6ec267-83a9-41a5-98c7-57c3ff81e11f) Malware Shared Modules - T1129 (0a5231ec-41af-4a35-83d0-6bdf11f28c65) Attack Pattern 1
VersaMem - S1154 (0a6ec267-83a9-41a5-98c7-57c3ff81e11f) Malware Credential API Hooking - T1056.004 (f5946b5e-9408-485f-a7f7-b5efc88909b6) Attack Pattern 1
Data Staged - T1074 (7dd95ff6-712e-4056-9626-312ea4ab4c5e) Attack Pattern Local Data Staging - T1074.001 (1c34f7aa-9341-4a48-bfab-af22e51aca6c) Attack Pattern 2
Obfuscated Files or Information - T1027 (b3d682b6-98f2-4fb0-aa3b-b4df007ca70a) Attack Pattern Encrypted/Encoded File - T1027.013 (0d91b3c0-5e50-47c3-949a-2a796f04d144) Attack Pattern 2
Indicator Removal - T1070 (799ace7f-e227-4411-baa0-8868704f2a69) Attack Pattern File Deletion - T1070.004 (d63a3fb8-9452-4e9d-a60a-54be68d5998c) Attack Pattern 2
Credential API Hooking - T1056.004 (f5946b5e-9408-485f-a7f7-b5efc88909b6) Attack Pattern Input Capture - T1056 (bb5a00de-e086-4859-a231-fa793f6797e2) Attack Pattern 2