psexe_renamed_sysinternals_tool

rule psexe_renamed_sysinternals_tool {
 meta:
    author = "Florian Roth"
    description = "Detects renamed SysInternals tool execution with a binary named ps.exe as used by Dragonfly APT group and documented in TA17-293A report  License: https://github.com/Neo23x0/sigma/blob/master/LICENSE.Detection.Rules.md."
    reference = "https://tdm.socprime.com/tdm/info/OyqeW0U5pwZB"
    version = "0.01"
    created = "2017/10/22"
    category = "process_creation"
    product = "windows"
    mitre = "defense_evasion, g0035, t1036, car.2013-05-009"

  events:
($selection.target.process.command_line = "ps.exe -accepteula" and ($selection.metadata.product_event_type = "4688" or $selection.metadata.product_event_type = "1"))

  condition:
    $selection
}