HDRoot_Sample_Jul17_1

rule HDRoot_Sample_Jul17_1 {
   meta:
      description = "Detects HDRoot samples"
      license = "Detection Rule License 1.1 https://github.com/Neo23x0/signature-base/blob/master/LICENSE"
      author = "Florian Roth (Nextron Systems)"
      reference = "Winnti HDRoot VT"
      date = "2017-07-07"
      hash1 = "6d2ad82f455becc8c830d000633a370857928c584246a7f41fe722cc46c0d113"
      id = "06356f8a-bacd-51bc-a6f4-107983a9c16e"
   strings:
      $s1 = "gleupdate.dll" fullword ascii
      $s2 = "\\DosDevices\\%ws\\system32\\%ws" wide
      $s3 = "l\\Driver\\nsiproxy" fullword wide
   condition:
      ( uint16(0) == 0x5a4d and filesize < 60KB and 3 of them )
}