Shamoon2_ComComp

Description

Detects Shamoon 2.0 Communication Components

Query · yara

strings:
      $s1 = "mkdir %s%s > nul 2>&1" fullword ascii
      $s2 = "p[%s%s%d.%s" fullword ascii

      $op1 = { 04 32 cb 88 04 37 88 4c 37 01 88 54 37 02 83 c6 }
      $op2 = { c8 02 d2 c0 e9 06 02 d2 24 3f 02 d1 88 45 fb 8d }
      $op3 = { 0c 3b 40 8d 4e 01 47 3b c1 7c d8 83 fe 03 7d 1c }
   condition:
      uint16(0) == 0x5a4d and filesize < 500KB and ( all of ($s*) or all of ($op*) )
Raw source Shamoon2_ComComp · YARA
Esc
Published by Neo23x0/signature-base ↗, licensed under Detection Rule License 1.1 ↗. Reproduced here unmodified. 
rule Shamoon2_ComComp {
   meta:
      description = "Detects Shamoon 2.0 Communication Components"
      author = "Florian Roth (Nextron Systems) (with Binar.ly)"
      reference = "https://goo.gl/jKIfGB"
      date = "2016-12-01"
      score = 70
      hash1 = "61c1c8fc8b268127751ac565ed4abd6bdab8d2d0f2ff6074291b2d54b0228842"
      id = "72068264-4f71-59fb-b3d8-938285ec8c7f"
   strings:
      $s1 = "mkdir %s%s > nul 2>&1" fullword ascii
      $s2 = "p[%s%s%d.%s" fullword ascii

      $op1 = { 04 32 cb 88 04 37 88 4c 37 01 88 54 37 02 83 c6 }
      $op2 = { c8 02 d2 c0 e9 06 02 d2 24 3f 02 d1 88 45 fb 8d }
      $op3 = { 0c 3b 40 8d 4e 01 47 3b c1 7c d8 83 fe 03 7d 1c }
   condition:
      uint16(0) == 0x5a4d and filesize < 500KB and ( all of ($s*) or all of ($op*) )
}

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