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51 lines
1.5 KiB
C
51 lines
1.5 KiB
C
VIRUSNAME_PREFIX("SUBMIT.NotPDF")
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VIRUSNAMES("InActive", "Submit")
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/* Target type is 0, all relevant files */
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TARGET(0)
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/* Declares to run bytecode only for preclassification (affecting only preclass files) */
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PRECLASS_HOOK_DECLARE
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/* JSON API call will require FUNC_LEVEL_098_5 = 78 */
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/* PRECLASS_HOOK_DECLARE will require FUNC_LEVEL_098_7 = 80 */
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FUNCTIONALITY_LEVEL_MIN(FUNC_LEVEL_098_7)
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#define STR_MAXLEN 256
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int entrypoint()
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{
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int32_t type, obj, strlen;
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char str[STR_MAXLEN];
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/* check is json is available, alerts on inactive (optional) */
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if (!json_is_active()) {
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return -1;
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}
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/* acquire array of internal contained objects */
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obj = json_get_object("FileType", 8, 0);
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if (obj <= 0) return -1;
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/* acquire and check type */
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type = json_get_type(obj);
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if (type == JSON_TYPE_STRING) {
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/* acquire string length, note +1 is for the NULL terminator */
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strlen = json_get_string_length(obj) + 1;
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/* prevent buffer overflow */
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if (strlen > STR_MAXLEN)
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strlen = STR_MAXLEN;
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/* acquire string data, note strlen includes NULL terminator */
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if (json_get_string(str, strlen, obj)) {
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/* debug print str (with '\n' and prepended message */
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debug_print_str(str, strlen);
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/* check the contained object's type */
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if (!(strlen == 12) || !memcmp(str, "CL_TYPE_PDF", 12)) {
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foundVirus("Submit");
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}
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}
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}
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return 0;
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}
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