rule win_sisfader_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2023-03-28"
        version = "1"
        description = "Detects win.sisfader."
        info = "autogenerated rule brought to you by yara-signator"
        tool = "yara-signator v0.6.0"
        signator_config = "callsandjumps;datarefs;binvalue"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.sisfader"
        malpedia_rule_date = "20230328"
        malpedia_hash = "9d2d75cef573c1c2d861f5197df8f563b05a305d"
        malpedia_version = "20230407"
        malpedia_license = "CC BY-SA 4.0"
        malpedia_sharing = "TLP:WHITE"

    /* DISCLAIMER
     * The strings used in this rule have been automatically selected from the
     * disassembly of memory dumps and unpacked files, using YARA-Signator.
     * The code and documentation is published here:
     * https://github.com/fxb-cocacoding/yara-signator
     * As Malpedia is used as data source, please note that for a given
     * number of families, only single samples are documented.
     * This likely impacts the degree of generalization these rules will offer.
     * Take the described generation method also into consideration when you
     * apply the rules in your use cases and assign them confidence levels.
     */


    strings:
        $sequence_0 = { 85c9 741f 33c0 85c9 7419 }
            // n = 5, score = 300
            //   85c9                 | test                ecx, ecx
            //   741f                 | je                  0x21
            //   33c0                 | xor                 eax, eax
            //   85c9                 | test                ecx, ecx
            //   7419                 | je                  0x1b

        $sequence_1 = { e8???????? 85c0 b91d000000 0f44d9 }
            // n = 4, score = 300
            //   e8????????           |                     
            //   85c0                 | test                eax, eax
            //   b91d000000           | mov                 ecx, 0x1d
            //   0f44d9               | cmove               ebx, ecx

        $sequence_2 = { c745d800000000 8b55fc 8b45d8 894214 8b4dfc }
            // n = 5, score = 200
            //   c745d800000000       | mov                 dword ptr [ebp - 0x28], 0
            //   8b55fc               | mov                 edx, dword ptr [ebp - 4]
            //   8b45d8               | mov                 eax, dword ptr [ebp - 0x28]
            //   894214               | mov                 dword ptr [edx + 0x14], eax
            //   8b4dfc               | mov                 ecx, dword ptr [ebp - 4]

        $sequence_3 = { 6a01 e8???????? 83c40c eb38 6a00 6a00 }
            // n = 6, score = 200
            //   6a01                 | push                1
            //   e8????????           |                     
            //   83c40c               | add                 esp, 0xc
            //   eb38                 | jmp                 0x3a
            //   6a00                 | push                0
            //   6a00                 | push                0

        $sequence_4 = { 41 3b4a04 72ee 8b4204 }
            // n = 4, score = 200
            //   41                   | inc                 ecx
            //   3b4a04               | cmp                 ecx, dword ptr [edx + 4]
            //   72ee                 | jb                  0xfffffff0
            //   8b4204               | mov                 eax, dword ptr [edx + 4]

        $sequence_5 = { e8???????? 8b442420 83c414 c74608e2e00000 }
            // n = 4, score = 200
            //   e8????????           |                     
            //   8b442420             | mov                 eax, dword ptr [esp + 0x20]
            //   83c414               | add                 esp, 0x14
            //   c74608e2e00000       | mov                 dword ptr [esi + 8], 0xe0e2

        $sequence_6 = { c705????????20000000 c705????????00000000 6a01 6a00 6a02 }
            // n = 5, score = 200
            //   c705????????20000000     |     
            //   c705????????00000000     |     
            //   6a01                 | push                1
            //   6a00                 | push                0
            //   6a02                 | push                2

        $sequence_7 = { 0fb78dae010000 6685c9 7411 6683f92e 7509 66399db0010000 7402 }
            // n = 7, score = 200
            //   0fb78dae010000       | movzx               ecx, word ptr [ebp + 0x1ae]
            //   6685c9               | test                cx, cx
            //   7411                 | je                  0x13
            //   6683f92e             | cmp                 cx, 0x2e
            //   7509                 | jne                 0xb
            //   66399db0010000       | cmp                 word ptr [ebp + 0x1b0], bx
            //   7402                 | je                  4

        $sequence_8 = { 7423 8d450c 50 8b4d08 51 }
            // n = 5, score = 200
            //   7423                 | je                  0x25
            //   8d450c               | lea                 eax, [ebp + 0xc]
            //   50                   | push                eax
            //   8b4d08               | mov                 ecx, dword ptr [ebp + 8]
            //   51                   | push                ecx

        $sequence_9 = { 6683bdcc0100002e 751c 0fb785ce010000 6685c0 7419 6683f82e 750a }
            // n = 7, score = 200
            //   6683bdcc0100002e     | cmp                 word ptr [ebp + 0x1cc], 0x2e
            //   751c                 | jne                 0x1e
            //   0fb785ce010000       | movzx               eax, word ptr [ebp + 0x1ce]
            //   6685c0               | test                ax, ax
            //   7419                 | je                  0x1b
            //   6683f82e             | cmp                 ax, 0x2e
            //   750a                 | jne                 0xc

        $sequence_10 = { 837df000 7407 8d55e0 52 ff55f0 }
            // n = 5, score = 200
            //   837df000             | cmp                 dword ptr [ebp - 0x10], 0
            //   7407                 | je                  9
            //   8d55e0               | lea                 edx, [ebp - 0x20]
            //   52                   | push                edx
            //   ff55f0               | call                dword ptr [ebp - 0x10]

        $sequence_11 = { 89442420 837c242001 7425 837c242002 7441 837c242003 }
            // n = 6, score = 200
            //   89442420             | mov                 dword ptr [esp + 0x20], eax
            //   837c242001           | cmp                 dword ptr [esp + 0x20], 1
            //   7425                 | je                  0x27
            //   837c242002           | cmp                 dword ptr [esp + 0x20], 2
            //   7441                 | je                  0x43
            //   837c242003           | cmp                 dword ptr [esp + 0x20], 3

        $sequence_12 = { 8d9700010000 894610 85d2 7422 8b4604 85c0 741b }
            // n = 7, score = 200
            //   8d9700010000         | lea                 edx, [edi + 0x100]
            //   894610               | mov                 dword ptr [esi + 0x10], eax
            //   85d2                 | test                edx, edx
            //   7422                 | je                  0x24
            //   8b4604               | mov                 eax, dword ptr [esi + 4]
            //   85c0                 | test                eax, eax
            //   741b                 | je                  0x1d

        $sequence_13 = { 57 8b3d???????? 81c600010000 c745dcaaeeddff c745e4e1f00000 0f1145f0 }
            // n = 6, score = 200
            //   57                   | push                edi
            //   8b3d????????         |                     
            //   81c600010000         | add                 esi, 0x100
            //   c745dcaaeeddff       | mov                 dword ptr [ebp - 0x24], 0xffddeeaa
            //   c745e4e1f00000       | mov                 dword ptr [ebp - 0x1c], 0xf0e1
            //   0f1145f0             | movups              xmmword ptr [ebp - 0x10], xmm0

        $sequence_14 = { 837c242003 745d 837c242004 7479 837c242005 0f8480000000 e9???????? }
            // n = 7, score = 200
            //   837c242003           | cmp                 dword ptr [esp + 0x20], 3
            //   745d                 | je                  0x5f
            //   837c242004           | cmp                 dword ptr [esp + 0x20], 4
            //   7479                 | je                  0x7b
            //   837c242005           | cmp                 dword ptr [esp + 0x20], 5
            //   0f8480000000         | je                  0x86
            //   e9????????           |                     

        $sequence_15 = { 6a01 e8???????? 83c418 b842000000 }
            // n = 4, score = 200
            //   6a01                 | push                1
            //   e8????????           |                     
            //   83c418               | add                 esp, 0x18
            //   b842000000           | mov                 eax, 0x42

        $sequence_16 = { c744245401000000 33c0 85c0 0f850fffffff }
            // n = 4, score = 200
            //   c744245401000000     | mov                 dword ptr [esp + 0x54], 1
            //   33c0                 | xor                 eax, eax
            //   85c0                 | test                eax, eax
            //   0f850fffffff         | jne                 0xffffff15

        $sequence_17 = { 89470c 8b4108 894708 817908020f0000 0f8573010000 83790410 }
            // n = 6, score = 200
            //   89470c               | mov                 dword ptr [edi + 0xc], eax
            //   8b4108               | mov                 eax, dword ptr [ecx + 8]
            //   894708               | mov                 dword ptr [edi + 8], eax
            //   817908020f0000       | cmp                 dword ptr [ecx + 8], 0xf02
            //   0f8573010000         | jne                 0x179
            //   83790410             | cmp                 dword ptr [ecx + 4], 0x10

        $sequence_18 = { 6bc800 8b5510 0fb7440a40 85c0 7422 8d4dfc }
            // n = 6, score = 200
            //   6bc800               | imul                ecx, eax, 0
            //   8b5510               | mov                 edx, dword ptr [ebp + 0x10]
            //   0fb7440a40           | movzx               eax, word ptr [edx + ecx + 0x40]
            //   85c0                 | test                eax, eax
            //   7422                 | je                  0x24
            //   8d4dfc               | lea                 ecx, [ebp - 4]

        $sequence_19 = { ff15???????? c1e802 33db 898754010000 }
            // n = 4, score = 200
            //   ff15????????         |                     
            //   c1e802               | shr                 eax, 2
            //   33db                 | xor                 ebx, ebx
            //   898754010000         | mov                 dword ptr [edi + 0x154], eax

        $sequence_20 = { 8905???????? c705????????07000000 8b442438 8905???????? c705????????00000000 }
            // n = 5, score = 200
            //   8905????????         |                     
            //   c705????????07000000     |     
            //   8b442438             | mov                 eax, dword ptr [esp + 0x38]
            //   8905????????         |                     
            //   c705????????00000000     |     

        $sequence_21 = { 8b442450 8906 8b442470 89442440 }
            // n = 4, score = 200
            //   8b442450             | mov                 eax, dword ptr [esp + 0x50]
            //   8906                 | mov                 dword ptr [esi], eax
            //   8b442470             | mov                 eax, dword ptr [esp + 0x70]
            //   89442440             | mov                 dword ptr [esp + 0x40], eax

        $sequence_22 = { b90e000000 ff15???????? 33c0 e9???????? e9???????? ff15???????? }
            // n = 6, score = 200
            //   b90e000000           | mov                 ecx, 0xe
            //   ff15????????         |                     
            //   33c0                 | xor                 eax, eax
            //   e9????????           |                     
            //   e9????????           |                     
            //   ff15????????         |                     

        $sequence_23 = { 83c408 8945dc 8b45a4 50 8b4de0 }
            // n = 5, score = 200
            //   83c408               | add                 esp, 8
            //   8945dc               | mov                 dword ptr [ebp - 0x24], eax
            //   8b45a4               | mov                 eax, dword ptr [ebp - 0x5c]
            //   50                   | push                eax
            //   8b4de0               | mov                 ecx, dword ptr [ebp - 0x20]

        $sequence_24 = { 89442450 837c245000 7405 e9???????? 83bc248000000000 7539 }
            // n = 6, score = 200
            //   89442450             | mov                 dword ptr [esp + 0x50], eax
            //   837c245000           | cmp                 dword ptr [esp + 0x50], 0
            //   7405                 | je                  7
            //   e9????????           |                     
            //   83bc248000000000     | cmp                 dword ptr [esp + 0x80], 0
            //   7539                 | jne                 0x3b

        $sequence_25 = { ff9424b0000000 89842480000000 83bc248000000000 750d }
            // n = 4, score = 200
            //   ff9424b0000000       | call                dword ptr [esp + 0xb0]
            //   89842480000000       | mov                 dword ptr [esp + 0x80], eax
            //   83bc248000000000     | cmp                 dword ptr [esp + 0x80], 0
            //   750d                 | jne                 0xf

        $sequence_26 = { 53 6a10 ff75fc ff15???????? 6a00 ff75fc }
            // n = 6, score = 200
            //   53                   | push                ebx
            //   6a10                 | push                0x10
            //   ff75fc               | push                dword ptr [ebp - 4]
            //   ff15????????         |                     
            //   6a00                 | push                0
            //   ff75fc               | push                dword ptr [ebp - 4]

        $sequence_27 = { ffd6 0f1005???????? 8bf8 8b4508 }
            // n = 4, score = 200
            //   ffd6                 | call                esi
            //   0f1005????????       |                     
            //   8bf8                 | mov                 edi, eax
            //   8b4508               | mov                 eax, dword ptr [ebp + 8]

        $sequence_28 = { 33d2 b904000000 e8???????? 33c0 83f801 7425 baffffffff }
            // n = 7, score = 200
            //   33d2                 | xor                 edx, edx
            //   b904000000           | mov                 ecx, 4
            //   e8????????           |                     
            //   33c0                 | xor                 eax, eax
            //   83f801               | cmp                 eax, 1
            //   7425                 | je                  0x27
            //   baffffffff           | mov                 edx, 0xffffffff

        $sequence_29 = { e8???????? 8b442470 c74708e2e00000 0f1005???????? 894704 895f0c 0f114714 }
            // n = 7, score = 200
            //   e8????????           |                     
            //   8b442470             | mov                 eax, dword ptr [esp + 0x70]
            //   c74708e2e00000       | mov                 dword ptr [edi + 8], 0xe0e2
            //   0f1005????????       |                     
            //   894704               | mov                 dword ptr [edi + 4], eax
            //   895f0c               | mov                 dword ptr [edi + 0xc], ebx
            //   0f114714             | movups              xmmword ptr [edi + 0x14], xmm0

    condition:
        7 of them and filesize < 417792
}