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SysUpdate - S0663 (c009560a-f097-45a3-8f9f-78ec1440a783)

SysUpdate is a backdoor written in C++ that has been used by Threat Group-3390 since at least 2020.(Citation: Trend Micro Iron Tiger April 2021)

Cluster A Galaxy A Cluster B Galaxy B Level
Code Signing - T1553.002 (32901740-b42c-4fdd-bc02-345b5dc57082) Attack Pattern SysUpdate - S0663 (c009560a-f097-45a3-8f9f-78ec1440a783) Malware 1
DNS - T1071.004 (1996eef1-ced3-4d7f-bf94-33298cabbf72) Attack Pattern SysUpdate - S0663 (c009560a-f097-45a3-8f9f-78ec1440a783) Malware 1
Deobfuscate/Decode Files or Information - T1140 (3ccef7ae-cb5e-48f6-8302-897105fbf55c) Attack Pattern SysUpdate - S0663 (c009560a-f097-45a3-8f9f-78ec1440a783) Malware 1
Software Packing - T1027.002 (deb98323-e13f-4b0c-8d94-175379069062) Attack Pattern SysUpdate - S0663 (c009560a-f097-45a3-8f9f-78ec1440a783) Malware 1
Masquerade Task or Service - T1036.004 (7bdca9d5-d500-4d7d-8c52-5fd47baf4c0c) Attack Pattern SysUpdate - S0663 (c009560a-f097-45a3-8f9f-78ec1440a783) Malware 1
Data from Local System - T1005 (3c4a2599-71ee-4405-ba1e-0e28414b4bc5) Attack Pattern SysUpdate - S0663 (c009560a-f097-45a3-8f9f-78ec1440a783) Malware 1
Process Discovery - T1057 (8f4a33ec-8b1f-4b80-a2f6-642b2e479580) Attack Pattern SysUpdate - S0663 (c009560a-f097-45a3-8f9f-78ec1440a783) Malware 1
Exfiltration Over C2 Channel - T1041 (92d7da27-2d91-488e-a00c-059dc162766d) Attack Pattern SysUpdate - S0663 (c009560a-f097-45a3-8f9f-78ec1440a783) Malware 1
System Owner/User Discovery - T1033 (03d7999c-1f4c-42cc-8373-e7690d318104) Attack Pattern SysUpdate - S0663 (c009560a-f097-45a3-8f9f-78ec1440a783) Malware 1
System Information Discovery - T1082 (354a7f88-63fb-41b5-a801-ce3b377b36f1) Attack Pattern SysUpdate - S0663 (c009560a-f097-45a3-8f9f-78ec1440a783) Malware 1
Encrypted/Encoded File - T1027.013 (0d91b3c0-5e50-47c3-949a-2a796f04d144) Attack Pattern SysUpdate - S0663 (c009560a-f097-45a3-8f9f-78ec1440a783) Malware 1
System Network Configuration Discovery - T1016 (707399d6-ab3e-4963-9315-d9d3818cd6a0) Attack Pattern SysUpdate - S0663 (c009560a-f097-45a3-8f9f-78ec1440a783) Malware 1
Registry Run Keys / Startup Folder - T1547.001 (9efb1ea7-c37b-4595-9640-b7680cd84279) Attack Pattern SysUpdate - S0663 (c009560a-f097-45a3-8f9f-78ec1440a783) Malware 1
Internet Connection Discovery - T1016.001 (132d5b37-aac5-4378-a8dc-3127b18a73dc) Attack Pattern SysUpdate - S0663 (c009560a-f097-45a3-8f9f-78ec1440a783) Malware 1
Modify Registry - T1112 (57340c81-c025-4189-8fa0-fc7ede51bae4) Attack Pattern SysUpdate - S0663 (c009560a-f097-45a3-8f9f-78ec1440a783) Malware 1
Native API - T1106 (391d824f-0ef1-47a0-b0ee-c59a75e27670) Attack Pattern SysUpdate - S0663 (c009560a-f097-45a3-8f9f-78ec1440a783) Malware 1
Screen Capture - T1113 (0259baeb-9f63-4c69-bf10-eb038c390688) Attack Pattern SysUpdate - S0663 (c009560a-f097-45a3-8f9f-78ec1440a783) Malware 1
Hidden Files and Directories - T1564.001 (ec8fc7e2-b356-455c-8db5-2e37be158e7d) Attack Pattern SysUpdate - S0663 (c009560a-f097-45a3-8f9f-78ec1440a783) Malware 1
Windows Management Instrumentation - T1047 (01a5a209-b94c-450b-b7f9-946497d91055) Attack Pattern SysUpdate - S0663 (c009560a-f097-45a3-8f9f-78ec1440a783) Malware 1
File Deletion - T1070.004 (d63a3fb8-9452-4e9d-a60a-54be68d5998c) Attack Pattern SysUpdate - S0663 (c009560a-f097-45a3-8f9f-78ec1440a783) Malware 1
Service Execution - T1569.002 (f1951e8a-500e-4a26-8803-76d95c4554b4) Attack Pattern SysUpdate - S0663 (c009560a-f097-45a3-8f9f-78ec1440a783) Malware 1
Symmetric Cryptography - T1573.001 (24bfaeba-cb0d-4525-b3dc-507c77ecec41) Attack Pattern SysUpdate - S0663 (c009560a-f097-45a3-8f9f-78ec1440a783) Malware 1
File and Directory Discovery - T1083 (7bc57495-ea59-4380-be31-a64af124ef18) Attack Pattern SysUpdate - S0663 (c009560a-f097-45a3-8f9f-78ec1440a783) Malware 1
Windows Service - T1543.003 (2959d63f-73fd-46a1-abd2-109d7dcede32) Attack Pattern SysUpdate - S0663 (c009560a-f097-45a3-8f9f-78ec1440a783) Malware 1
System Service Discovery - T1007 (322bad5a-1c49-4d23-ab79-76d641794afa) Attack Pattern SysUpdate - S0663 (c009560a-f097-45a3-8f9f-78ec1440a783) Malware 1
DLL Side-Loading - T1574.002 (e64c62cf-9cd7-4a14-94ec-cdaac43ab44b) Attack Pattern SysUpdate - S0663 (c009560a-f097-45a3-8f9f-78ec1440a783) Malware 1
Ingress Tool Transfer - T1105 (e6919abc-99f9-4c6c-95a5-14761e7b2add) Attack Pattern SysUpdate - S0663 (c009560a-f097-45a3-8f9f-78ec1440a783) Malware 1
Standard Encoding - T1132.001 (04fd5427-79c7-44ea-ae13-11b24778ff1c) Attack Pattern SysUpdate - S0663 (c009560a-f097-45a3-8f9f-78ec1440a783) Malware 1
Systemd Service - T1543.002 (dfefe2ed-4389-4318-8762-f0272b350a1b) Attack Pattern SysUpdate - S0663 (c009560a-f097-45a3-8f9f-78ec1440a783) Malware 1
Fileless Storage - T1027.011 (02c5abff-30bf-4703-ab92-1f6072fae939) Attack Pattern SysUpdate - S0663 (c009560a-f097-45a3-8f9f-78ec1440a783) Malware 1
Code Signing - T1553.002 (32901740-b42c-4fdd-bc02-345b5dc57082) Attack Pattern Subvert Trust Controls - T1553 (b83e166d-13d7-4b52-8677-dff90c548fd7) Attack Pattern 2
DNS - T1071.004 (1996eef1-ced3-4d7f-bf94-33298cabbf72) Attack Pattern Application Layer Protocol - T1071 (355be19c-ffc9-46d5-8d50-d6a036c675b6) Attack Pattern 2
Software Packing - T1027.002 (deb98323-e13f-4b0c-8d94-175379069062) Attack Pattern Obfuscated Files or Information - T1027 (b3d682b6-98f2-4fb0-aa3b-b4df007ca70a) Attack Pattern 2
Masquerade Task or Service - T1036.004 (7bdca9d5-d500-4d7d-8c52-5fd47baf4c0c) Attack Pattern Masquerading - T1036 (42e8de7b-37b2-4258-905a-6897815e58e0) 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
Registry Run Keys / Startup Folder - T1547.001 (9efb1ea7-c37b-4595-9640-b7680cd84279) Attack Pattern Boot or Logon Autostart Execution - T1547 (1ecb2399-e8ba-4f6b-8ba7-5c27d49405cf) Attack Pattern 2
System Network Configuration Discovery - T1016 (707399d6-ab3e-4963-9315-d9d3818cd6a0) Attack Pattern Internet Connection Discovery - T1016.001 (132d5b37-aac5-4378-a8dc-3127b18a73dc) Attack Pattern 2
Hide Artifacts - T1564 (22905430-4901-4c2a-84f6-98243cb173f8) Attack Pattern Hidden Files and Directories - T1564.001 (ec8fc7e2-b356-455c-8db5-2e37be158e7d) 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
System Services - T1569 (d157f9d2-d09a-4efa-bb2a-64963f94e253) Attack Pattern Service Execution - T1569.002 (f1951e8a-500e-4a26-8803-76d95c4554b4) Attack Pattern 2
Symmetric Cryptography - T1573.001 (24bfaeba-cb0d-4525-b3dc-507c77ecec41) Attack Pattern Encrypted Channel - T1573 (b8902400-e6c5-4ba2-95aa-2d35b442b118) Attack Pattern 2
Create or Modify System Process - T1543 (106c0cf6-bf73-4601-9aa8-0945c2715ec5) Attack Pattern Windows Service - T1543.003 (2959d63f-73fd-46a1-abd2-109d7dcede32) Attack Pattern 2
DLL Side-Loading - T1574.002 (e64c62cf-9cd7-4a14-94ec-cdaac43ab44b) Attack Pattern Hijack Execution Flow - T1574 (aedfca76-3b30-4866-b2aa-0f1d7fd1e4b6) Attack Pattern 2
Data Encoding - T1132 (cc7b8c4e-9be0-47ca-b0bb-83915ec3ee2f) Attack Pattern Standard Encoding - T1132.001 (04fd5427-79c7-44ea-ae13-11b24778ff1c) Attack Pattern 2
Create or Modify System Process - T1543 (106c0cf6-bf73-4601-9aa8-0945c2715ec5) Attack Pattern Systemd Service - T1543.002 (dfefe2ed-4389-4318-8762-f0272b350a1b) Attack Pattern 2
Obfuscated Files or Information - T1027 (b3d682b6-98f2-4fb0-aa3b-b4df007ca70a) Attack Pattern Fileless Storage - T1027.011 (02c5abff-30bf-4703-ab92-1f6072fae939) Attack Pattern 2