SUSP_SFX_cmd

rule SUSP_SFX_cmd {
   meta:
      description = "Detects suspicious SFX as used by Gamaredon group"
      author = "Florian Roth (Nextron Systems)"
      reference = "Internal Research"
      date = "2018-09-27"
      hash1 = "965129e5d0c439df97624347534bc24168935e7a71b9ff950c86faae3baec403"
      id = "87e75fe6-c2d7-5cb4-9432-7c37dbfe94b8"
   strings:
      $s1 = /RunProgram=\"hidcon:[a-zA-Z0-9]{1,16}.cmd/ fullword ascii
   condition:
      uint16(0) == 0x5a4d and filesize < 2000KB and 1 of them
}

rule SUSP_XMRIG_Reference {
   meta:
      description = "Detects an executable with a suspicious XMRIG crypto miner reference"
      author = "Florian Roth (Nextron Systems)"
      reference = "https://twitter.com/itaitevet/status/1141677424045953024"
      date = "2019-06-20"
      score = 70
      id = "0a7324ce-90dc-5e6a-b22a-c29eccf324e9"
   strings:
      $x1 = "\\xmrig\\" ascii
   condition:
      uint16(0) == 0x5a4d and filesize < 2000KB and 1 of them
}