APT_Thrip_Sample_Jun18_6

rule APT_Thrip_Sample_Jun18_6 {
   meta:
      description = "Detects sample found in Thrip report by Symantec "
      license = "Detection Rule License 1.1 https://github.com/Neo23x0/signature-base/blob/master/LICENSE"
      author = "Florian Roth (Nextron Systems)"
      reference = "https://www.symantec.com/blogs/threat-intelligence/thrip-hits-satellite-telecoms-defense-targets "
      date = "2018-06-21"
      hash1 = "44f58496578e55623713c4290abb256d03103e78e99939daeec059776bd79ee2"
      id = "a1c65bc1-371e-509f-a01c-2d58c1773f95"
   strings:
      $s1 = "C:\\Windows\\system32\\Instell.exe" fullword ascii
   condition:
      uint16(0) == 0x5a4d and filesize < 100KB and 1 of them
}