Reflective_DLL_Loader_Aug17_2

rule Reflective_DLL_Loader_Aug17_2 {
   meta:
      description = "Detects Reflective DLL Loader - suspicious - Possible FP could be program crack"
      license = "Detection Rule License 1.1 https://github.com/Neo23x0/signature-base/blob/master/LICENSE"
      author = "Florian Roth (Nextron Systems)"
      reference = "Internal Research"
      date = "2017-08-20"
      score = 60
      hash1 = "c2a7a2d0b05ad42386a2bedb780205b7c0af76fe9ee3d47bbe217562f627fcae"
      hash2 = "b90831aaf8859e604283e5292158f08f100d4a2d4e1875ea1911750a6cb85fe0"
      id = "5948d9ba-e655-5b11-ad74-f650b3a753e7"
   strings:
      $x1 = "\\ReflectiveDLLInjection-master\\" ascii
      $s2 = "reflective_dll.dll" fullword ascii
      $s3 = "DLL injection" fullword ascii
      $s4 = "_ReflectiveLoader@4" ascii
      $s5 = "Reflective Dll Injection" fullword ascii
   condition:
      ( uint16(0) == 0x5a4d and
        filesize < 200KB and
        (
           pe.imphash() == "59867122bcc8c959ad307ac2dd08af79" or
           pe.exports("_ReflectiveLoader@4") or
           2 of them
        )
      ) or ( 3 of them )
}