{
  "ml": {
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    "fs": [
      {
        "id": 0,
        "prob": 0.9999401569366455,
        "class": 2
      }
    ],
    "prob": 0.99994016,
    "class": 2,
    "models": [
      {
        "m": "az",
        "prob": 0.99131787,
        "class": 0
      },
      {
        "m": "az/scripts",
        "prob": 0.999318,
        "class": 1
      },
      {
        "m": "az/php",
        "prob": 0.99994016,
        "class": 2
      }
    ],
    "version": "v16.16",
    "thresholds": [
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      0.99909174
    ],
    "analyzed_at": "2026-05-09T06:45:36Z"
  },
  "path": "54374f4d6554fdccf69216834ad3f7e7",
  "raw": {
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    "fs": [
      {
        "f": "O₄(C₃PXeAs₂)H₂(PoOs)Md₂Th",
        "k": {
          "source.imports[0]": "eval",
          "source.strings[0]": "$s853998c=\"b\\141s\\14564_\\144ec\\157de\";@eval($s853998c(",
          "source.strings[1]": "//NHNGi+jbvuamCwxGVp7sjsxFfjyGM5yDHl+uMNox9VckKfyX5qUFKMGUcs",
          "source.strings[2]": "Ot==\"))));",
          "source.strings[3]": "\\x62\\141\\x73\\145\\x36\\x34\\x5f\\144\\x65\\x63\\157\\x64\\x65",
          "source.has_imports": true
        },
        "x": 358,
        "id": 0,
        "is": [
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        ],
        "ms": {
          "file": {
            "size": 28295.0
          },
          "text": {
            "digit_ratio": 0.13,
            "space_count": 24.0,
            "total_lines": 350.0,
            "char_entropy": 5.73,
            "unique_chars": 81.0,
            "escape_density": 0.05,
            "import_density": 0.29,
            "string_density": 0.01,
            "avg_line_length": 79.85,
            "max_line_length": 82.0,
            "hex_escape_count": 9.0,
            "last_line_length": 2.0,
            "most_common_char": "V",
            "whitespace_ratio": 0.01,
            "most_common_ratio": 0.04,
            "identifier_density": 0.01,
            "line_length_stddev": 9.06,
            "octal_escape_count": 4.0,
            "normalized_import_count": 0.05,
            "normalized_string_count": 0.16,
            "suspicious_comment_ratio": 1.0,
            "max_inline_whitespace_run": 1.0,
            "normalized_unique_identifiers": 0.24
          },
          "imports": {
            "total": 1.0,
            "unique_modules": 1.0,
            "third_party_count": 1.0,
            "third_party_ratio": 1.0
          },
          "strings": {
            "total": 3.0,
            "avg_length": 18668.67,
            "max_length": 27977.0,
            "avg_entropy": 4.8,
            "total_bytes": 56006.0,
            "entropy_stddev": 1.28,
            "very_long_strings": 2.0,
            "high_entropy_count": 2.0,
            "unicode_heavy_strings": 1.0
          },
          "comments": {
            "chars": 217.0,
            "lines": 4.0,
            "total": 1.0,
            "to_code_ratio": 0.01,
            "url_in_comments": 1.0,
            "high_entropy_comments": 1.0
          },
          "functions": {},
          "identifiers": {
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            "avg_length": 6.0,
            "max_length": 8.0,
            "min_length": 4.0,
            "avg_entropy": 2.25,
            "reuse_ratio": 0.67,
            "unique_count": 2.0,
            "length_stddev": 2.0,
            "has_digit_ratio": 0.5,
            "all_lowercase_ratio": 0.5
          }
        },
        "ss": [
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            238,
            "\\x62\\141\\x73\\145\\x36\\x34\\x5f\\144\\x65\\x63\\157\\x64\\x65"
          ],
          [
            228,
            "unicode-escape",
            "$s853998c=\"b\\141s\\14564_\\144ec\\157de\";@eval($s853998c("
          ],
          [
            310,
            "base64",
            "//NHNGi+jbvuamCwxGVp7sjsxFfjyGM5yDHl+uMNox9VckKfyX5qUFKMGUcs"
          ],
          [
            28272,
            "base64",
            "Ot==\"))));"
          ]
        ],
        "sz": 28295,
        "ts": [
          {
            "a": "T1059.006",
            "c": 0.75,
            "d": "PHP eval() token present",
            "e": [
              "eval"
            ],
            "i": "micro-behaviors/process/interpreter/eval::eval-symbol",
            "l": 4,
            "m": "E1059"
          },
          {
            "a": "T1505.003",
            "c": 0.8600000143051147,
            "d": "Very long embedded string",
            "e": [
              "strings.max_length = 27977.00"
            ],
            "i": "objectives/command-and-control/backdoor/webshell/stager::very-long-string",
            "l": 1
          },
          {
            "a": "T1027",
            "c": 0.800000011920929,
            "d": "High entropy strings (encoded/encrypted data)",
            "e": [
              "strings.avg_entropy = 4.80"
            ],
            "i": "objectives/anti-static/obfuscation/code-metrics/strings::high-entropy-strings-dup",
            "l": 3,
            "m": "B0032"
          },
          {
            "c": 0.8999999761581421,
            "d": "File has 30 or more lines",
            "e": [
              "text.total_lines = 350.00"
            ],
            "i": "metadata/file/text/metrics::file-has-30-plus-lines",
            "l": 1
          },
          {
            "a": "T1505.003",
            "c": 0.8399999737739563,
            "d": "Near-zero whitespace script",
            "e": [
              "text.whitespace_ratio = 0.01"
            ],
            "i": "objectives/command-and-control/backdoor/webshell/stager::near-zero-whitespace",
            "l": 1
          },
          {
            "a": "T1053",
            "c": 0.8600000143051147,
            "d": "at atrun scheduled job",
            "e": [
              "at 1:03"
            ],
            "i": "objectives/persistence/system/surface/paths::at-atrun-job",
            "l": 4
          },
          {
            "c": 0.699999988079071,
            "d": "PHP error suppression operator usage",
            "e": [
              "@eval($s853998c(\n\"Ly9OSE5HaStqYnZ1YW1Dd3hHVnA3c2pzeEZmanlHTTV5REhsK3VNTm94OVZja0tmeVg1cVVGS01HVWNz\nd..."
            ],
            "i": "micro-behaviors/os/stdio::error-suppress-prefix",
            "l": 3
          },
          {
            "a": "T1059.001",
            "c": 0.8999999761581421,
            "d": "Error-suppressed eval (@eval)",
            "e": [
              "@eval("
            ],
            "i": "objectives/execution/interpreter/eval/remote::eval-error-suppressed",
            "l": 4,
            "m": "E1059"
          },
          {
            "a": "T1505.003",
            "d": "PHP open tag",
            "e": [
              "\u003c?php"
            ],
            "i": "objectives/command-and-control/backdoor/webshell/request::php-tag",
            "l": 1,
            "m": "B0030"
          },
          {
            "a": "T1027",
            "c": 0.9599999785423279,
            "d": "FOPO obfuscated eval marker",
            "e": [
              "\";@eval("
            ],
            "i": "objectives/command-and-control/backdoor/webshell/decoder::php-fopo-eval-marker",
            "l": 4,
            "m": "B0030"
          },
          {
            "c": 0.800000011920929,
            "d": "PHP variable function invocation pattern",
            "e": [
              "s853998c"
            ],
            "i": "objectives/anti-static/obfuscation/imports::dynamic-function-execution",
            "l": 3
          },
          {
            "a": "T1027",
            "c": 0.4000000059604645,
            "d": "Very few string literals (string obfuscation indicator)",
            "e": [
              "strings.total = 3.00"
            ],
            "i": "objectives/anti-static/obfuscation/code-metrics/strings::few-strings",
            "l": 3,
            "m": "B0032"
          },
          {
            "a": "T1027",
            "c": 0.699999988079071,
            "d": "Very low whitespace ratio (minified/compressed)",
            "e": [
              "text.whitespace_ratio = 0.01"
            ],
            "i": "objectives/anti-static/obfuscation/code-metrics/structure::low-whitespace",
            "l": 2,
            "m": "B0032"
          },
          {
            "a": "T1027",
            "c": 0.800000011920929,
            "d": "High overall text entropy (encoded",
            "e": [
              "text.char_entropy = 5.73"
            ],
            "i": "objectives/anti-static/obfuscation/code-metrics/structure::high-text-entropy",
            "l": 2,
            "m": "B0032"
          },
          {
            "c": 1.0,
            "d": "php code embedded in string",
            "e": [
              "Detected php at offset 0x0"
            ],
            "i": "metadata/lang/embedded::php",
            "l": 2
          },
          {
            "c": 0.8999999761581421,
            "d": "Decoded unicode-escape content",
            "e": [
              "$s853998c=\"b\\141s\\14564_\\144ec\\157de\";@e \u003cunicode-escape\u003e"
            ],
            "i": "metadata/encoded-payload/unicode-escape",
            "l": 2
          },
          {
            "c": 0.8999999761581421,
            "d": "Encoded payload detected: base64 → base64",
            "e": [
              "\u003cbinary data\u003e \u003cbase64+base64\u003e"
            ],
            "i": "metadata/encoded-payload/base64-base64",
            "l": 3
          },
          {
            "c": 0.8999999761581421,
            "d": "Detects malware from NK APT incident DE",
            "e": [
              "\";@eval($",
              "Obfuscation provided by FOPO"
            ],
            "i": "third_party/SigBase/Webshell/FOPO/Obfuscation/APT/ON/Nov17",
            "l": 5
          },
          {
            "c": 0.8999999761581421,
            "d": "PHP webshell obfuscated by encoding of mixed hex and dec",
            "e": [
              "\"\\x62\\141\\x73\\145\\x36\\x34\\x5f\\144\\x65\\x63\\",
              "\u003c?php",
              "\u003c?"
            ],
            "i": "third_party/SigBase/WEBSHELL/PHP/OBFUSC/Encoded/Mixed/Dec/And/Hex",
            "l": 5
          },
          {
            "c": 0.8999999761581421,
            "d": "PHP webshell which eval()s obfuscated string",
            "e": [
              "\u003c?",
              "7QGV2YWwo",
              "eval($",
              "\u003c?php"
            ],
            "i": "third_party/SigBase/WEBSHELL/PHP/OBFUSC/Fopo",
            "l": 5
          },
          {
            "c": 0.8999999761581421,
            "d": "PHP webshell using $a($code) for kind of eval with encoded blob to decode, e.g. b374k",
            "e": [
              "\u003c?",
              "\u003c?php",
              "eval("
            ],
            "i": "third_party/SigBase/WEBSHELL/PHP/Dynamic/Big",
            "l": 5
          },
          {
            "c": 0.8999999761581421,
            "d": "PHP webshell using some kind of eval with encoded blob to decode, which is checked with YARAs math.entropy module",
            "e": [
              "\u003c?",
              "eval($",
              "\u003c?php"
            ],
            "i": "third_party/SigBase/WEBSHELL/PHP/Encoded/Big",
            "l": 5
          }
        ],
        "sha": "7c7e63d85bcf303cd9268e65a7e789dd411076a89b85005cb7d8335860036d45",
        "path": "54374f4d6554fdccf69216834ad3f7e7",
        "type": "php"
      }
    ],
    "tv": "a9555"
  }
}