Windows_VulnDriver_AppRemover_6bb565cf

rule Windows_VulnDriver_AppRemover_6bb565cf {
    meta:
        author = "Elastic Security"
        id = "6bb565cf-8e09-4478-b1bc-c541615597db"
        fingerprint = "073d3c0b7338d1024021adee1b9850f875cd941d7af2ae01815e30cfc367054b"
        creation_date = "2026-07-26"
        last_modified = "2026-08-11"
        description = "Name: AppRemover.exe, Version: <= 4.1.7.1"
        threat_name = "Windows.VulnDriver.AppRemover"
        reference_sample = "3c3d1409959cd3c42afa48c429c5a8ff131ca00776e1341c44e9d0fee3cdad9e"
        severity = 50
        arch_context = "x86"
        scan_context = "file"
        license = "Elastic License v2"
        os = "windows"
    strings:
        $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 41 00 70 00 70 00 52 00 65 00 6D 00 6F 00 76 00 65 00 72 00 2E 00 65 00 78 00 65 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-\x03][\x00-\x00][\x00-\xff][\x00-\xff][\x00-\xff][\x00-\xff]|[\x00-\x00][\x00-\x00][\x04-\x04][\x00-\x00][\x00-\xff][\x00-\xff][\x00-\xff][\x00-\xff]|[\x01-\x01][\x00-\x00][\x04-\x04][\x00-\x00][\x00-\xff][\x00-\xff][\x00-\x06][\x00-\x00]|[\x01-\x01][\x00-\x00][\x04-\x04][\x00-\x00][\x00-\x00][\x00-\x00][\x07-\x07][\x00-\x00]|[\x01-\x01][\x00-\x00][\x04-\x04][\x00-\x00][\x01-\x01][\x00-\x00][\x07-\x07][\x00-\x00])/
        $str1 = "ardrv.pdb"
        $str2 = "AppRemover" wide
    condition:
        int16(uint32(0x3C) + 0x5c) == 0x0001 and int16(uint32(0x3C) + 0x18) == 0x020b and $original_file_name and $version and $str1 and $str2
}