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RustyWater - S9037 (50be4e81-db74-41a2-a9aa-423314082bea)

RustyWater is a Rust-based implant used by MuddyWater. Historically, MuddyWater has used PowerShell-based tools and RustyWater reflects a shift in tooling, demonstrating better techniques for defense evasion and reverse engineering.(Citation: CloudSEK_RustyWater_Jan2026)

Cluster A Galaxy A Cluster B Galaxy B Level
Security Software Discovery - T1518.001 (cba37adb-d6fb-4610-b069-dd04c0643384) Attack Pattern RustyWater - S9037 (50be4e81-db74-41a2-a9aa-423314082bea) Malware 1
RustyWater - S9037 (50be4e81-db74-41a2-a9aa-423314082bea) Malware Standard Encoding - T1132.001 (04fd5427-79c7-44ea-ae13-11b24778ff1c) Attack Pattern 1
RustyWater - S9037 (50be4e81-db74-41a2-a9aa-423314082bea) Malware Portable Executable Injection - T1055.002 (806a49c4-970d-43f9-9acc-ac0ee11e6662) Attack Pattern 1
RustyWater - S9037 (50be4e81-db74-41a2-a9aa-423314082bea) Malware System Information Discovery - T1082 (354a7f88-63fb-41b5-a801-ce3b377b36f1) Attack Pattern 1
RustyWater - S9037 (50be4e81-db74-41a2-a9aa-423314082bea) Malware Delay Execution - T1678 (a1df809c-7d0e-459f-8fe5-25474bab770b) Attack Pattern 1
RustyWater - S9037 (50be4e81-db74-41a2-a9aa-423314082bea) Malware Malicious File - T1204.002 (232b7f21-adf9-4b42-b936-b9d6f7df856e) Attack Pattern 1
RustyWater - S9037 (50be4e81-db74-41a2-a9aa-423314082bea) Malware Registry Run Keys / Startup Folder - T1547.001 (9efb1ea7-c37b-4595-9640-b7680cd84279) Attack Pattern 1
RustyWater - S9037 (50be4e81-db74-41a2-a9aa-423314082bea) Malware Impersonation - T1684.001 (cd92d2b8-ce43-4666-9472-f1b4b9f4f8be) Attack Pattern 1
RustyWater - S9037 (50be4e81-db74-41a2-a9aa-423314082bea) Malware Spearphishing Attachment - T1566.001 (2e34237d-8574-43f6-aace-ae2915de8597) Attack Pattern 1
RustyWater - S9037 (50be4e81-db74-41a2-a9aa-423314082bea) Malware Match Legitimate Resource Name or Location - T1036.005 (1c4e5d32-1fe9-4116-9d9d-59e3925bd6a2) Attack Pattern 1
RustyWater - S9037 (50be4e81-db74-41a2-a9aa-423314082bea) Malware Deobfuscate/Decode Files or Information - T1140 (3ccef7ae-cb5e-48f6-8302-897105fbf55c) Attack Pattern 1
RustyWater - S9037 (50be4e81-db74-41a2-a9aa-423314082bea) Malware Encrypted/Encoded File - T1027.013 (0d91b3c0-5e50-47c3-949a-2a796f04d144) Attack Pattern 1
Native API - T1106 (391d824f-0ef1-47a0-b0ee-c59a75e27670) Attack Pattern RustyWater - S9037 (50be4e81-db74-41a2-a9aa-423314082bea) Malware 1
Domain Account - T1087.002 (21875073-b0ee-49e3-9077-1e2a885359af) Attack Pattern RustyWater - S9037 (50be4e81-db74-41a2-a9aa-423314082bea) Malware 1
RustyWater - S9037 (50be4e81-db74-41a2-a9aa-423314082bea) Malware Obfuscated Files or Information - T1027 (b3d682b6-98f2-4fb0-aa3b-b4df007ca70a) Attack Pattern 1
Component Object Model - T1559.001 (2f6b4ed7-fef1-44ba-bcb8-1b4beb610b64) Attack Pattern RustyWater - S9037 (50be4e81-db74-41a2-a9aa-423314082bea) Malware 1
RustyWater - S9037 (50be4e81-db74-41a2-a9aa-423314082bea) Malware System Owner/User Discovery - T1033 (03d7999c-1f4c-42cc-8373-e7690d318104) Attack Pattern 1
RustyWater - S9037 (50be4e81-db74-41a2-a9aa-423314082bea) Malware Web Protocols - T1071.001 (df8b2a25-8bdf-4856-953c-a04372b1c161) Attack Pattern 1
Debugger Evasion - T1622 (e4dc8c01-417f-458d-9ee0-bb0617c1b391) Attack Pattern RustyWater - S9037 (50be4e81-db74-41a2-a9aa-423314082bea) Malware 1
RustyWater - S9037 (50be4e81-db74-41a2-a9aa-423314082bea) Malware Symmetric Cryptography - T1573.001 (24bfaeba-cb0d-4525-b3dc-507c77ecec41) Attack Pattern 1
Security Software Discovery - T1518.001 (cba37adb-d6fb-4610-b069-dd04c0643384) Attack Pattern Software Discovery - T1518 (e3b6daca-e963-4a69-aee6-ed4fd653ad58) Attack Pattern 2
Standard Encoding - T1132.001 (04fd5427-79c7-44ea-ae13-11b24778ff1c) Attack Pattern Data Encoding - T1132 (cc7b8c4e-9be0-47ca-b0bb-83915ec3ee2f) Attack Pattern 2
Process Injection - T1055 (43e7dc91-05b2-474c-b9ac-2ed4fe101f4d) Attack Pattern Portable Executable Injection - T1055.002 (806a49c4-970d-43f9-9acc-ac0ee11e6662) Attack Pattern 2
User Execution - T1204 (8c32eb4d-805f-4fc5-bf60-c4d476c131b5) Attack Pattern Malicious File - T1204.002 (232b7f21-adf9-4b42-b936-b9d6f7df856e) Attack Pattern 2
Boot or Logon Autostart Execution - T1547 (1ecb2399-e8ba-4f6b-8ba7-5c27d49405cf) Attack Pattern Registry Run Keys / Startup Folder - T1547.001 (9efb1ea7-c37b-4595-9640-b7680cd84279) Attack Pattern 2
Social Engineering - T1684 (41e4d77a-6275-4976-9e35-785985598519) Attack Pattern Impersonation - T1684.001 (cd92d2b8-ce43-4666-9472-f1b4b9f4f8be) Attack Pattern 2
Phishing - T1566 (a62a8db3-f23a-4d8f-afd6-9dbc77e7813b) Attack Pattern Spearphishing Attachment - T1566.001 (2e34237d-8574-43f6-aace-ae2915de8597) Attack Pattern 2
Masquerading - T1036 (42e8de7b-37b2-4258-905a-6897815e58e0) Attack Pattern Match Legitimate Resource Name or Location - T1036.005 (1c4e5d32-1fe9-4116-9d9d-59e3925bd6a2) Attack Pattern 2
Encrypted/Encoded File - T1027.013 (0d91b3c0-5e50-47c3-949a-2a796f04d144) Attack Pattern Obfuscated Files or Information - T1027 (b3d682b6-98f2-4fb0-aa3b-b4df007ca70a) Attack Pattern 2
Domain Account - T1087.002 (21875073-b0ee-49e3-9077-1e2a885359af) Attack Pattern Account Discovery - T1087 (72b74d71-8169-42aa-92e0-e7b04b9f5a08) Attack Pattern 2
Inter-Process Communication - T1559 (acd0ba37-7ba9-4cc5-ac61-796586cd856d) Attack Pattern Component Object Model - T1559.001 (2f6b4ed7-fef1-44ba-bcb8-1b4beb610b64) Attack Pattern 2
Application Layer Protocol - T1071 (355be19c-ffc9-46d5-8d50-d6a036c675b6) Attack Pattern Web Protocols - T1071.001 (df8b2a25-8bdf-4856-953c-a04372b1c161) Attack Pattern 2
Encrypted Channel - T1573 (b8902400-e6c5-4ba2-95aa-2d35b442b118) Attack Pattern Symmetric Cryptography - T1573.001 (24bfaeba-cb0d-4525-b3dc-507c77ecec41) Attack Pattern 2