possible_hpcustpartuidll_hijack_via_imageload

rule possible_hpcustpartuidll_hijack_via_imageload {
 meta:
    author = "SOC Prime Team, FireEye"
    description = "This rule has been ported from Fireeye's HXIOC format to SIGMA. It detects hpcustpartui.dll being loaded from unusual locations.  License: https://github.com/Neo23x0/sigma/blob/master/LICENSE.Detection.Rules.md."
    reference = "https://tdm.socprime.com/tdm/info/rkyIZhC9HQ6B"
    version = "0.01"
    created = "2021-03-09"
    category = "image_load"
    product = "windows"
    mitre = "persistence, privilege_escalation, defense_evasion, t1574.001"

  events:
(re.regex($selection_image.target.process.file.full_path, `.*\\hpcustpartui\.dll`) and not ((re.regex($selection_image.target.process.file.full_path, `.*Program Files\\HP\\.*`) or re.regex($selection_image.target.process.file.full_path, `.*Program Files \(x86\)\\HP\\.*`) or re.regex($selection_image.target.process.file.full_path, `.*PROGRA~.*`) or re.regex($selection_image.target.process.file.full_path, `.*Program Files \(x86\)\\Trend Micro\\.*`) or re.regex($selection_image.target.process.file.full_path, `.*Program Files\\Trend Micro\\.*`))))

  condition:
    $selection_image
}