suspicious_scheduled_task

rule suspicious_scheduled_task {
 meta:
    author = "Emir Erdogan"
    description = "Detection of suspicious scheduled tasks  License: https://github.com/Neo23x0/sigma/blob/master/LICENSE.Detection.Rules.md."
    reference = "https://tdm.socprime.com/tdm/info/1ULlEDq8oA0b"
    version = "0.01"
    created = "2021-03-09"
    product = "windows"
    service = "sysmon"
    mitre = "T1053, T1168"

  events:
(re.regex($selection.target.process.command_line, `.*schtasks\.exe /create /sc MINUTE /tn SystemSoundsServices /tr \"regsvr32\.exe\".*`) or re.regex($selection.target.process.command_line, `.*/s /n /u /i:http:.*`))

  condition:
    $selection
}