{
  "Event": {
    "analysis": "1",
    "date": "2026-07-15",
    "extends_uuid": "",
    "info": "[Threat Intel] Daxin Returns: Stealthy Malware Resurfaces in Taiwan Alongside a New Backdoor",
    "protected": false,
    "publish_timestamp": "1784553532",
    "published": true,
    "threat_level_id": "2",
    "timestamp": "1784553532",
    "uuid": "9152013f-0679-4727-907e-7953f77c42ae",
    "Orgc": {
      "name": "Rectifyq",
      "uuid": "cd9bd516-61fa-476b-980f-2f8de03992d4"
    },
    "Tag": [
      {
        "colour": "#892644",
        "local": false,
        "name": "misp-galaxy:producer=\"Symantec\"",
        "relationship_type": ""
      },
      {
        "colour": "#ffffff",
        "local": false,
        "name": "tlp:clear",
        "relationship_type": ""
      },
      {
        "colour": "#004646",
        "local": false,
        "name": "type:OSINT",
        "relationship_type": ""
      },
      {
        "colour": "#b94b1d",
        "local": false,
        "name": "rectifyq:mitre-att&ck=\"from-original-src\"",
        "relationship_type": ""
      },
      {
        "colour": "#b94b1d",
        "local": false,
        "name": "rectifyq:mitre-att&ck=\"from-OTX\"",
        "relationship_type": ""
      },
      {
        "colour": "#e96364",
        "local": false,
        "name": "misp-galaxy:mitre-attack-pattern=\"Adversary-in-the-Middle - T1557\"",
        "relationship_type": ""
      },
      {
        "colour": "#e7d48a",
        "local": false,
        "name": "misp-galaxy:mitre-attack-pattern=\"System Owner/User Discovery - T1033\"",
        "relationship_type": ""
      },
      {
        "colour": "#72ee33",
        "local": false,
        "name": "misp-galaxy:mitre-attack-pattern=\"Keylogging - T1056.001\"",
        "relationship_type": ""
      },
      {
        "colour": "#91ee5f",
        "local": false,
        "name": "misp-galaxy:mitre-attack-pattern=\"Rootkit - T1014\"",
        "relationship_type": ""
      },
      {
        "colour": "#5c57c8",
        "local": false,
        "name": "misp-galaxy:mitre-attack-pattern=\"Windows Service - T1543.003\"",
        "relationship_type": ""
      },
      {
        "colour": "#7d7034",
        "local": false,
        "name": "misp-galaxy:mitre-attack-pattern=\"System Information Discovery - T1082\"",
        "relationship_type": ""
      },
      {
        "colour": "#ff841f",
        "local": false,
        "name": "misp-galaxy:mitre-attack-pattern=\"Application Layer Protocol - T1071\"",
        "relationship_type": ""
      },
      {
        "colour": "#43c8db",
        "local": false,
        "name": "misp-galaxy:mitre-attack-pattern=\"Process Injection - T1055\"",
        "relationship_type": ""
      },
      {
        "colour": "#4e866e",
        "local": false,
        "name": "misp-galaxy:mitre-attack-pattern=\"Traffic Signaling - T1205\"",
        "relationship_type": ""
      },
      {
        "colour": "#cdf945",
        "local": false,
        "name": "misp-galaxy:mitre-attack-pattern=\"Winlogon Helper DLL - T1547.004\"",
        "relationship_type": ""
      },
      {
        "colour": "#9f6bd9",
        "local": false,
        "name": "misp-galaxy:mitre-attack-pattern=\"System Network Configuration Discovery - T1016\"",
        "relationship_type": ""
      },
      {
        "colour": "#adf1b0",
        "local": false,
        "name": "misp-galaxy:mitre-attack-pattern=\"Proxy - T1090\"",
        "relationship_type": ""
      },
      {
        "colour": "#0c0051",
        "local": false,
        "name": "misp-galaxy:mitre-attack-pattern=\"File and Directory Discovery - T1083\"",
        "relationship_type": ""
      },
      {
        "colour": "#dac154",
        "local": false,
        "name": "misp-galaxy:mitre-attack-pattern=\"System Network Connections Discovery - T1049\"",
        "relationship_type": ""
      },
      {
        "colour": "#59699c",
        "local": false,
        "name": "misp-galaxy:mitre-attack-pattern=\"Valid Accounts - T1078\"",
        "relationship_type": ""
      },
      {
        "colour": "#6d779a",
        "local": false,
        "name": "misp-galaxy:mitre-attack-pattern=\"Exploitation for Privilege Escalation - T1068\"",
        "relationship_type": ""
      },
      {
        "colour": "#e08bb2",
        "local": false,
        "name": "misp-galaxy:mitre-attack-pattern=\"Obfuscated Files or Information - T1027\"",
        "relationship_type": ""
      },
      {
        "colour": "#356c41",
        "local": false,
        "name": "misp-galaxy:mitre-attack-pattern=\"Encrypted Channel - T1573\"",
        "relationship_type": ""
      },
      {
        "colour": "#fdd85e",
        "local": false,
        "name": "misp-galaxy:mitre-attack-pattern=\"Access Token Manipulation - T1134\"",
        "relationship_type": ""
      },
      {
        "colour": "#fae37b",
        "local": false,
        "name": "misp-galaxy:mitre-attack-pattern=\"Service Execution - T1569.002\"",
        "relationship_type": ""
      },
      {
        "colour": "#2613b0",
        "local": false,
        "name": "misp-galaxy:target-information=\"Taiwan\"",
        "relationship_type": ""
      },
      {
        "colour": "#0088cc",
        "local": false,
        "name": "misp-galaxy:country=\"china\"",
        "relationship_type": ""
      },
      {
        "colour": "#0088cc",
        "local": false,
        "name": "misp-galaxy:malpedia=\"Daxin\"",
        "relationship_type": ""
      },
      {
        "colour": "#49a260",
        "local": false,
        "name": "rectifyq:category=\"threat\"",
        "relationship_type": ""
      },
      {
        "colour": "#110041",
        "local": false,
        "name": "rectifyq:sub-category=\"malware-analysis\"",
        "relationship_type": ""
      },
      {
        "colour": "#1c006d",
        "local": false,
        "name": "rectifyq:topic=\"geopolitical\"",
        "relationship_type": ""
      },
      {
        "colour": "#ffd12e",
        "local": false,
        "name": "rectifyq:target=\"broad-based\"",
        "relationship_type": ""
      },
      {
        "colour": "#31373d",
        "local": false,
        "name": "rectifyq:MY-relevancy=\"not-relevant\"",
        "relationship_type": ""
      },
      {
        "colour": "#0088cc",
        "local": false,
        "name": "misp-galaxy:mitre-attack-pattern=\"Replace legitimate binary with malware - T1378\"",
        "relationship_type": ""
      },
      {
        "colour": "#220082",
        "local": false,
        "name": "rectifyq:samples-found-in=\"MalwareBazaar\"",
        "relationship_type": ""
      },
      {
        "colour": "#230087",
        "local": false,
        "name": "rectifyq:samples-found-in=\"Tria.ge\"",
        "relationship_type": ""
      },
      {
        "colour": "#3800d9",
        "local": false,
        "name": "rectifyq:action-taken=\"VT-comment\"",
        "relationship_type": ""
      },
      {
        "colour": "#3d00e9",
        "local": false,
        "name": "rectifyq:action-taken=\"telegram\"",
        "relationship_type": ""
      }
    ],
    "Attribute": [
      {
        "category": "External analysis",
        "comment": "",
        "deleted": false,
        "disable_correlation": false,
        "timestamp": "1784170863",
        "to_ids": false,
        "type": "link",
        "uuid": "9fd9f4b3-3191-4cf6-94fb-9296cd283700",
        "value": "https://www.security.com/blog-post/daxin-returns-stupig"
      },
      {
        "category": "Other",
        "comment": "Description",
        "deleted": false,
        "disable_correlation": false,
        "timestamp": "1784170863",
        "to_ids": false,
        "type": "text",
        "uuid": "ed4b36aa-70f0-4a90-8269-5ae889dd8735",
        "value": "Backdoor.Daxin, a sophisticated China-linked kernel-mode rootkit first exposed in 2022, was discovered operating on a Taiwan manufacturing firm's network in 2026. The malware was found alongside Backdoor.Stupig, a previously unknown backdoor that uses a novel technique involving a Trojanized keyboard-layout DLL loaded by winlogon.exe, enabling command execution as System from the Windows logon screen without authentication. Both samples carry compile timestamps from early 2013, but the compromised host only began reporting telemetry in May 2026, suggesting a possible 13-year undetected intrusion. The victim was a Taiwan-based subsidiary of a multinational high-tech manufacturer. Daxin's defining characteristic is its ability to hijack legitimate TCP connections for command-and-control traffic, making it exceptionally difficult to detect through conventional network monitoring."
      },
      {
        "category": "Other",
        "comment": "Summary",
        "deleted": false,
        "disable_correlation": false,
        "timestamp": "1784170863",
        "to_ids": false,
        "type": "text",
        "uuid": "574faefc-861d-45c2-acb3-038194723896",
        "value": "Name: Daxin Returns: Stealthy Malware Resurfaces in Taiwan Alongside a New Backdoor\nAuthor: AlienVault\nAdversary: \nTags: [\"stupig\", \"backdoor\", \"winlogon persistence\", \"china-linked espionage\", \"daxin\", \"keyboard-layout dll\", \"taiwan targeting\", \"kernel-mode rootkit\"]\nTgtd countries: [\"Taiwan\"]\nMlwr families: [\"Daxin\", \"Stupig\"]\nAttack_ids: [\"T1557\", \"T1033\", \"T1056.001\", \"T1014\", \"T1543.003\", \"T1082\", \"T1071\", \"T1055\", \"T1205\", \"T1547.004\", \"T1016\", \"T1090\", \"T1083\", \"T1049\", \"T1078\", \"T1068\", \"T1027\", \"T1573\", \"T1134\", \"T1569.002\"]\nIndustries: [\"Manufacturing\", \"Technology\"]"
      },
      {
        "category": "Payload delivery",
        "comment": "No sample in VT\r\nLast check: 19/07/2026",
        "deleted": false,
        "disable_correlation": false,
        "timestamp": "1784463740",
        "to_ids": true,
        "type": "sha256",
        "uuid": "956d2b60-2d21-49b2-8d4f-c09f696eeb19",
        "value": "5bb5cffda4647940919a185df37aab2aef71ca3010a6c1d05bdcc8bc8fb3af3f",
        "Tag": [
          {
            "colour": "#260091",
            "local": false,
            "name": "rectifyq:ioc=\"enriched\"",
            "relationship_type": ""
          },
          {
            "colour": "#626567",
            "local": false,
            "name": "rectifyq:no-samples-in=\"VirusTotal\"",
            "relationship_type": ""
          },
          {
            "colour": "#626567",
            "local": false,
            "name": "rectifyq:no-samples-in=\"MalwareBazaar\"",
            "relationship_type": ""
          },
          {
            "colour": "#626567",
            "local": false,
            "name": "rectifyq:no-samples-in=\"Tria.ge\"",
            "relationship_type": ""
          }
        ]
      }
    ],
    "Object": [
      {
        "comment": "",
        "deleted": false,
        "description": "File object describing a file with meta-information",
        "first_seen": "2013-08-12T08:00:45+00:00",
        "last_seen": "2025-07-16T14:59:23+00:00",
        "meta-category": "file",
        "name": "file",
        "template_uuid": "688c46fb-5edb-40a3-8273-1af7923e2215",
        "template_version": "25",
        "timestamp": "1784553147",
        "uuid": "95a3aaee-e2aa-48ce-afdb-55fa8c5be4cd",
        "Attribute": [
          {
            "category": "Payload delivery",
            "comment": "",
            "deleted": false,
            "disable_correlation": false,
            "first_seen": "2013-08-12T08:00:45+00:00",
            "last_seen": "2025-07-16T14:59:23+00:00",
            "object_relation": "md5",
            "timestamp": "1784553147",
            "to_ids": true,
            "type": "md5",
            "uuid": "80328231-4074-4cfc-9aab-e107d4b60a48",
            "value": "62c18d61ed324088f963510bae43b831",
            "Tag": [
              {
                "colour": "#260091",
                "local": false,
                "name": "rectifyq:ioc=\"enriched\"",
                "relationship_type": ""
              },
              {
                "colour": "#220085",
                "local": false,
                "name": "rectifyq:samples-found-in=\"VirusTotal\"",
                "relationship_type": ""
              },
              {
                "colour": "#220082",
                "local": false,
                "name": "rectifyq:samples-found-in=\"MalwareBazaar\"",
                "relationship_type": ""
              },
              {
                "colour": "#230087",
                "local": false,
                "name": "rectifyq:samples-found-in=\"Tria.ge\"",
                "relationship_type": ""
              },
              {
                "colour": "#342294",
                "local": false,
                "name": "CommentAdded",
                "relationship_type": ""
              }
            ]
          },
          {
            "category": "Payload delivery",
            "comment": "",
            "deleted": false,
            "disable_correlation": false,
            "first_seen": "2013-08-12T08:00:45+00:00",
            "last_seen": "2025-07-16T14:59:23+00:00",
            "object_relation": "sha1",
            "timestamp": "1784463739",
            "to_ids": true,
            "type": "sha1",
            "uuid": "6aacc440-0b27-4187-8b62-02d008a20432",
            "value": "8302802b709ad242a81b939b6c90b3230e1a1f1e",
            "Tag": [
              {
                "colour": "#260091",
                "local": false,
                "name": "rectifyq:ioc=\"enriched\"",
                "relationship_type": ""
              },
              {
                "colour": "#220085",
                "local": false,
                "name": "rectifyq:samples-found-in=\"VirusTotal\"",
                "relationship_type": ""
              },
              {
                "colour": "#220082",
                "local": false,
                "name": "rectifyq:samples-found-in=\"MalwareBazaar\"",
                "relationship_type": ""
              },
              {
                "colour": "#230087",
                "local": false,
                "name": "rectifyq:samples-found-in=\"Tria.ge\"",
                "relationship_type": ""
              }
            ]
          },
          {
            "category": "Payload delivery",
            "comment": "",
            "deleted": false,
            "disable_correlation": false,
            "first_seen": "2013-08-12T08:00:45+00:00",
            "last_seen": "2025-07-16T14:59:23+00:00",
            "object_relation": "sha256",
            "timestamp": "1784463739",
            "to_ids": true,
            "type": "sha256",
            "uuid": "860d0684-7298-4e93-bb43-99a2ee1b9a54",
            "value": "49c827cf48efb122a9d6fd87b426482b7496ccd4a2dbca31ebbf6b2b80c98530",
            "Tag": [
              {
                "colour": "#260091",
                "local": false,
                "name": "rectifyq:ioc=\"enriched\"",
                "relationship_type": ""
              },
              {
                "colour": "#220085",
                "local": false,
                "name": "rectifyq:samples-found-in=\"VirusTotal\"",
                "relationship_type": ""
              },
              {
                "colour": "#220082",
                "local": false,
                "name": "rectifyq:samples-found-in=\"MalwareBazaar\"",
                "relationship_type": ""
              },
              {
                "colour": "#230087",
                "local": false,
                "name": "rectifyq:samples-found-in=\"Tria.ge\"",
                "relationship_type": ""
              }
            ]
          },
          {
            "category": "Other",
            "comment": "Checked: 19/07/2026\nLast-scan: 17/07/2026",
            "deleted": false,
            "disable_correlation": true,
            "first_seen": "2013-08-12T08:00:45+00:00",
            "last_seen": "2025-07-16T14:59:23+00:00",
            "object_relation": "text",
            "timestamp": "1784462596",
            "to_ids": false,
            "type": "text",
            "uuid": "b6a41d73-e183-4f84-bb58-e93433492a88",
            "value": "Type Description: Win32 EXE\nVerified: Signed\nSigning date: 07:07 AM 01/23/2013\nSigners: Anhua Xinda (Beijing) Technology Co., Ltd.; VeriSign Class 3 Code Signing 2010 CA; VeriSign\nMicrosoft: Trojan:Win32/Tnega!MSR\nClamAV: Win.Rootkit.Daxin-9955246-0\nVT Total Detection: 53/74\nFirst Seen In The Wild: 2022-02-28T12:51:51+00:00\nFirst Submission: 2013-08-12T08:00:45+00:00\nLast Submission: 2025-07-16T14:59:23+00:00"
          },
          {
            "category": "Other",
            "comment": "",
            "deleted": false,
            "disable_correlation": false,
            "first_seen": "2013-08-12T08:00:45+00:00",
            "last_seen": "2025-07-16T14:59:23+00:00",
            "object_relation": "creation-time",
            "timestamp": "1784462596",
            "to_ids": false,
            "type": "datetime",
            "uuid": "cb9482cd-5aee-47d0-94ae-9b3ec4469658",
            "value": "2013-01-23T07:07:26+00:00"
          },
          {
            "category": "Payload delivery",
            "comment": "",
            "deleted": false,
            "disable_correlation": false,
            "first_seen": "2013-08-12T08:00:45+00:00",
            "last_seen": "2025-07-16T14:59:23+00:00",
            "object_relation": "ssdeep",
            "timestamp": "1784462596",
            "to_ids": true,
            "type": "ssdeep",
            "uuid": "a6d4f73e-adb0-4151-b43a-028dc78bbb2f",
            "value": "768:S1l1z3gUgbjth0lC02LYYS4eUnS8nBzpX+NW7aNTfHskVgeKF35uYC9DEVIY9JOW:ig8N2cCtLZES2JEBSj6"
          },
          {
            "category": "Other",
            "comment": "",
            "deleted": false,
            "disable_correlation": true,
            "first_seen": "2013-08-12T08:00:45+00:00",
            "last_seen": "2025-07-16T14:59:23+00:00",
            "object_relation": "size-in-bytes",
            "timestamp": "1784462596",
            "to_ids": false,
            "type": "size-in-bytes",
            "uuid": "2a3902c4-69eb-4dbf-bc49-5c92dd510846",
            "value": "60664"
          },
          {
            "category": "Payload delivery",
            "comment": "",
            "deleted": false,
            "disable_correlation": false,
            "first_seen": "2013-08-12T08:00:45+00:00",
            "last_seen": "2025-07-16T14:59:23+00:00",
            "object_relation": "vhash",
            "timestamp": "1784462596",
            "to_ids": true,
            "type": "vhash",
            "uuid": "7113cbbc-b752-4baa-aa04-e88fea3e1773",
            "value": "064056651d151e5iz47xz"
          },
          {
            "category": "Payload delivery",
            "comment": "",
            "deleted": false,
            "disable_correlation": true,
            "first_seen": "2013-08-12T08:00:45+00:00",
            "last_seen": "2025-07-16T14:59:23+00:00",
            "object_relation": "filename",
            "timestamp": "1784462596",
            "to_ids": true,
            "type": "filename",
            "uuid": "f4dca8ba-2481-452a-a58d-3972d821189c",
            "value": "62c18d61ed324088f963510bae43b831.bin"
          }
        ]
      }
    ]
  }
}