EquationGroup_libXmexploit2

rule EquationGroup_libXmexploit2 {
   meta:
      description = "Equation Group hack tool leaked by ShadowBrokers- file libXmexploit2.8"
      license = "Detection Rule License 1.1 https://github.com/Neo23x0/signature-base/blob/master/LICENSE"
      author = "Florian Roth (Nextron Systems)"
      reference = "https://medium.com/@shadowbrokerss/dont-forget-your-base-867d304a94b1"
      date = "2017-04-08"
      hash1 = "d7ed0234d074266cb37dd6a6a60119adb7d75cc6cc3b38654c8951b643944796"
      id = "30e94123-acc9-5185-9f5b-1f956c4cf3d1"
   strings:
      $s1 = "Usage: ./exp command display_to_return_to" fullword ascii
      $s2 = "sizeof shellcode = %d" fullword ascii
      $s3 = "Execve failed!" fullword ascii
   condition:
      ( uint16(0) == 0x457f and filesize < 40KB and 1 of them )
}