possible_nopowershell_execution_executeassembly_via_cobalt_strike

rule possible_nopowershell_execution_executeassembly_via_cobalt_strike {
 meta:
    author = "Roman Ranskyi"
    description = "NoPowerShell is a tool implemented in C# which supports executing PowerShell-like commands while remaining invisible to any PowerShell logging mechanisms.  License: https://github.com/Neo23x0/sigma/blob/master/LICENSE.Detection.Rules.md."
    reference = "https://tdm.socprime.com/tdm/info/Zc3fssbaQYWw"
    version = "0.01"
    created = "2021-03-09"
    product = "windows"
    service = "sysmon"
    mitre = "Execution, t1086, Defense Evasion, t1055"

  events:
($selection0.metadata.product_event_type = "8" and re.regex($selection0.target.process.file.file_metadata.pe.import_hash, `.*0B80`))

  condition:
    $selection0
}