EXPL_POC_SpringCore_0day_Indicators_Mar22_1

rule EXPL_POC_SpringCore_0day_Indicators_Mar22_1 {
   meta:
      description = "Detects indicators found after SpringCore exploitation attempts and in the POC script"
      author = "Florian Roth (Nextron Systems)"
      reference = "https://twitter.com/vxunderground/status/1509170582469943303"
      date = "2022-03-30"
      score = 70
      id = "297e4b57-f831-56e0-a391-1ffbc9a4d438"
   strings:
      $x1 = "java.io.InputStream%20in%20%3D%20%25%7Bc1%7Di"
      $x2 = "?pwd=j&cmd=whoami"
      $x3 = ".getParameter(%22pwd%22)"
      $x4 = "class.module.classLoader.resources.context.parent.pipeline.first.pattern=%25%7B"
   condition:
      1 of them
}