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"rule APT_HKTL_Wiper_WhisperGate_Jan22_1 {
   meta:
      date = ""2022-01-16""
      score = 85
      hash1 = ""a196c6b8ffcb97ffb276d04f354696e2391311db3841ae16c8c9f56f36a38e92""
   strings:
      /* AAAAA\x00Your hard drive has been corrupted. */
      $xc1 = { 41 41 41 41 41 00 59 6F 75 72 20 68 61 72 64 20
               64 72 69 76 65 20 68 61 73 20 62 65 65 6E 20 63
               6F 72 72 75 70 74 65 64 }
      
      $op1 = { 89 34 24 e8 3f ff ff ff 50 8d 65 f4 31 c0 59 5e 5f }
      $op2 = { 8d bd e8 df ff ff e8 04 de ff ff b9 00 08 00 00 f3 a5 c7 44 24 18 00 00 00 00 c7 44 24 14 00 00 00 00 c7 44 24 10 03 00 00 00 c7 44 24 0c 00 00 00 00 }
      $op3 = { c7 44 24 0c 00 00 00 00 c7 44 24 08 00 02 00 00 89 44 24 04 e8 aa fe ff ff 83 ec 14 89 34 24 e8 3f ff ff ff 50 }
   condition:
      uint16(0) == 0x5a4d and
      filesize < 100KB and ( 1 of ($x*) or 2 of them ) or all of them
}ccczcss
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rule APT_HKTL_Wiper_WhisperGate_Jan22_2 {
   meta:
      date = ""2022-01-16""
      score = 90
      hash1 = ""dcbbae5a1c61dbbbb7dcd6dc5dd1eb1169f5329958d38b58c3fd9384081c9b78""
   strings:
      /* powershell  -enc UwB0AGEAcgB0AC */
      $sc1 = { 70 00 6F 00 77 00 65 00 72 00 73 00 68 00 65 00
               6C 00 6C 00 00 27 2D 00 65 00 6E 00 63 00 20 00
               55 00 77 00 42 00 30 00 41 00 47 00 45 00 41 00
               63 00 67 00 42 00 30 00 41 00 43 }
      /* Ylfwdwgmpilzyaph */
      $sc2 = { 59 00 6C 00 66 00 77 00 64 00 77 00 67 00 6D 00
               70 00 69 00 6C 00 7A 00 79 00 61 00 70 00 68 }

      $s1 = ""xownxloxadDxatxxax"" wide
      $s2 = ""0AUwBsAGUAZQBwACAALQBzACAAMQAwAA=="" wide /* Decoded with base64, UTF-16-LE: Sleep -s 10 */
      $s3 = ""https://cdn.discordapp.com/attachments/"" wide
      $s4 = ""fffxfff.fff"" ascii fullword

      $op1 = { 20 6b 85 b9 03 20 14 19 91 52 61 65 20 e1 ae f1 }
      $op2 = { aa ae 74 20 d9 7c 71 04 59 20 71 cc 13 91 61 20 97 3c 2a c0 }
      $op3 = { 38 9c f3 ff ff 20 f2 96 4d e9 20 5d ae d9 ce 58 20 4f 45 27 }
      $op4 = { d4 67 d4 61 80 1c 00 00 04 38 35 02 00 00 20 27 c0 db 56 65 20 3d eb 24 de 61 }
   condition:
      uint16(0) == 0x5a4d and
      filesize < 1000KB and 5 of them
      or 7 of them
}

rule APT_HKTL_Wiper_WhisperGate_Stage3_Jan22 {
   meta:
      date = ""2022-01-16""
      hash1 = ""9ef7dbd3da51332a78eff19146d21c82957821e464e8133e9594a07d716d892d""
   strings:
      $xc1 = { 65 31 63 70 00 31 79 72 61 72 62 69 4c 73 73 61 6c 43 00 6e 69 61 4d }

      $s1 = ""lld."" wide
   condition:
      uint16(filesize-2) == 0x4d5a and
      filesize < 5000KB and all of them
}

rule MAL_OBFUSC_Unknown_Jan22_1 {
   meta:
      date = ""2022-01-16""
      hash1 = ""9ef7dbd3da51332a78eff19146d21c82957821e464e8133e9594a07d716d892d""
   strings:
      $xc1 = { 37 00 63 00 38 00 63 00 62 00 35 00 35 00 39 00
               38 00 65 00 37 00 32 00 34 00 64 00 33 00 34 00
               33 00 38 00 34 00 63 00 63 00 65 00 37 00 34 00
               30 00 32 00 62 00 31 00 31 00 66 00 30 00 65 }
      $xc2 = { 4D 61 69 6E 00 43 6C 61 73 73 4C 69 62 72 61 72
               79 31 00 70 63 31 65 }

      $s1 = "".dll"" wide
      $s2 = ""%&%,%s%"" ascii fullword

      $op1 = { a2 87 fa b1 44 a5 f5 12 da a7 49 11 5c 8c 26 d4 75 }
      $op2 = { d7 af 52 38 c7 47 95 c8 0e 88 f3 d5 0b }
      $op3 = { 6c 05 df d6 b8 ac 11 f2 67 16 cb b7 34 4d b6 91 }
   condition:
      uint16(0) == 0x5a4d and
      filesize < 1000KB and ( 1 of ($x*) or 3 of them )
}

rule MAL_Unknown_Discord_Characteristics_Jan22_1 {
   meta:
      description = ""Detects unknown malware with a few indicators also found in Wiper malware""
      date = ""2022-01-16""
      score = 75
      hash1 = ""dcbbae5a1c61dbbbb7dcd6dc5dd1eb1169f5329958d38b58c3fd9384081c9b78""
   strings:
      $x1 = ""xownxloxadDxatxxax"" wide
      
      $s2 = ""https://cdn.discordapp.com/attachments/"" wide
   condition:
      uint16(0) == 0x5a4d and
      filesize < 1000KB and all of them
}"


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