APT_Thrip_Sample_Jun18_11

rule APT_Thrip_Sample_Jun18_11 {
   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 = "590a6796b97469f8e6977832a63c0964464901f075a9651f7f1b4578e55bd8c8"
      id = "69476f7d-c436-5863-bf20-1d3e821974e6"
   strings:
      $s1 = "\\AppData\\Local\\Temp\\dw20.EXE" ascii
      $s2 = "C:\\Windows\\system32\\sysprep\\cryptbase.dll" fullword ascii
      $s3 = "WFQNJMBWF" fullword ascii
      $s4 = "SQLWLWZSF" fullword ascii
      $s5 = "PFQUFQSBPP" fullword ascii
      $s6 = "WQZXQFPVOW" fullword ascii
   condition:
      uint16(0) == 0x5a4d and filesize < 100KB
      and ( pe.imphash() == "6eef4394490378f32d134ab3bf4bf194" or all of them )
}