APT17_Malware_Oct17_1

rule APT17_Malware_Oct17_1 {
   meta:
      description = "Detects APT17 malware"
      license = "Detection Rule License 1.1 https://github.com/Neo23x0/signature-base/blob/master/LICENSE"
      author = "Florian Roth (Nextron Systems)"
      reference = "https://goo.gl/puVc9q"
      date = "2017-10-03"
      hash1 = "dc9b5e8aa6ec86db8af0a7aa897ca61db3e5f3d2e0942e319074db1aaccfdc83"
      id = "457312d8-5bfe-5282-9ace-2f169278569c"
   strings:
      $s1 = "\\spool\\prtprocs\\w32x86\\localspl.dll" ascii
      $s2 = "\\spool\\prtprocs\\x64\\localspl.dll" ascii
      $s3 = "\\msvcrt.dll" ascii
      $s4 = "\\TSMSISrv.dll" ascii
   condition:
      ( uint16(0) == 0x5a4d and filesize < 500KB and all of them )
}