IMPLANT_4_v5

rule IMPLANT_4_v5 {
   meta:
      description = "BlackEnergy / Voodoo Bear Implant by APT28"
      author = "US CERT"
      reference = "https://www.us-cert.gov/ncas/current-activity/2017/02/10/Enhanced-Analysis-GRIZZLY-STEPPE"
      date = "2017-02-10"
      score = 85
      id = "d203f3c6-4e86-5632-ad5d-61763ee59bbe"
   strings:
      $GEN_HASH = {0F BE C9 C1 C0 07 33 C1}
   condition:
      (uint16(0) == 0x5A4D or uint16(0) == 0xCFD0 or
      uint16(0) == 0xC3D4 or uint32(0) == 0x46445025 or
      uint32(1) == 0x6674725C) and all of them
}