webshell_detection_with_sysmon_logs

rule webshell_detection_with_sysmon_logs {
 meta:
    author = "Emir Erdogan"
    description = "It only detects a webshell on a IIS webservers.  License: https://github.com/Neo23x0/sigma/blob/master/LICENSE.Detection.Rules.md."
    reference = "https://tdm.socprime.com/tdm/info/yDGqouUvPgjp"
    version = "0.01"
    created = "2021-03-09"
    product = "windows"
    service = "sysmon"
    mitre = "privilege_escalation, Web_Shell, t1100"

  events:
(re.regex($selection.principal.process.file.full_path, `.*\\w3wp\.exe`) and re.regex($selection.target.process.file.full_path, `.*\\cmd\.exe`))

  condition:
    $selection
}