Windows_VulnDriver_TmComm_96a22802

rule Windows_VulnDriver_TmComm_96a22802 {
    meta:
        author = "Elastic Security"
        id = "96a22802-f8a1-4ba9-8988-1f805cfce43d"
        fingerprint = "4c91cd69571ac9b9fcbf079bbb8138586f69c14e744139fe30e42753c0c7b6af"
        creation_date = "2026-05-22"
        last_modified = "2026-07-29"
        description = "Subject: Trend Micro, Inc., Version: <= 6.70.0.1129"
        threat_name = "Windows.VulnDriver.TmComm"
        reference_sample = "7c731c0ea7f28671ab7787800db69739ea5cd6be16ea21045b4580cf95cbf73b"
        severity = 50
        arch_context = "x86"
        scan_context = "file"
        license = "Elastic License v2"
        os = "windows"
    strings:
        $subject_name = { 06 03 55 04 03 [2] 54 72 65 6E 64 20 4D 69 63 72 6F 2C 20 49 6E 63 2E }
        $original_file_name = { 4F 00 72 00 69 00 67 00 69 00 6E 00 61 00 6C 00 46 00 69 00 6C 00 65 00 6E 00 61 00 6D 00 65 00 00 00 54 00 6D 00 43 00 6F 00 6D 00 6D 00 2E 00 73 00 79 00 73 00 00 00 }
        $version = /V\x00S\x00_\x00V\x00E\x00R\x00S\x00I\x00O\x00N\x00_\x00I\x00N\x00F\x00O\x00\x00\x00{0,4}\xbd\x04\xef\xfe[\x00-\xff]{4}([\x00-\xff][\x00-\xff][\x00-\x05][\x00-\x00][\x00-\xff][\x00-\xff][\x00-\xff][\x00-\xff]|[\x00-\x45][\x00-\x00][\x06-\x06][\x00-\x00][\x00-\xff][\x00-\xff][\x00-\xff][\x00-\xff]|[\x46-\x46][\x00-\x00][\x06-\x06][\x00-\x00]([\x00-\xff][\x00-\x00]|[\x00-\xff][\x01-\x03]|[\x00-\x68][\x04-\x04])[\x00-\x00][\x00-\x00]|[\x46-\x46][\x00-\x00][\x06-\x06][\x00-\x00][\x69-\x69][\x04-\x04][\x00-\x00][\x00-\x00])/
        $str1 = "tmcomm.pdb"
        $str2 = "\\Device\\ or \\??\\)"
        $str3 = "_UtilGetFileObjectForProcessByEPROC@8"
        $str4 = "_UtilbuildDynamicDiskMappingTable@0"
        $str5 = "Trend Micro Eyes" wide
    condition:
        int16(uint32(0x3C) + 0x5c) == 0x0001 and $subject_name and $original_file_name and $version and $str1 and $str2 and $str3 and $str4 and $str5
}