possible_flash_0day_execute_embedded_in_word_document_sysmon

rule possible_flash_0day_execute_embedded_in_word_document_sysmon {
 meta:
    author = "Roman Ranskyi"
    description = "An active exploitation of a zero-day vulnerability in Adobe Flash via a Microsoft Office document.  License: https://github.com/Neo23x0/sigma/blob/master/LICENSE.Detection.Rules.md."
    reference = "https://tdm.socprime.com/tdm/info/q7MAkDhbW5Bb"
    version = "0.01"
    created = "2021-03-09"
    category = "process_creation"
    product = "windows"
    mitre = "execution, t1203, t1059.003"

  events:
(re.regex($selection.principal.process.file.full_path, `.*WINWORD\.exe`) and re.regex($selection.target.process.command_line, `.*&&.*`) and re.regex($selection.target.process.command_line, `.*%~dp0.*`) and re.regex($selection.target.process.command_line, `.*-inul.*`) and re.regex($selection.target.process.command_line, `.*rar.*`) and re.regex($selection.target.process.command_line, `.*-o\+.*`) and re.regex($selection.target.process.command_line, `.* e .*`) and re.regex($selection.target.process.command_line, `.*\.jpg.*`) and ($selection.metadata.product_event_type = "4688" or $selection.metadata.product_event_type = "1"))

  condition:
    $selection
}