rule win_rising_sun_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2020-12-22"
        version = "1"
        description = "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.rising_sun"
        malpedia_rule_date = "20201222"
        malpedia_hash = "30354d830a29f0fbd3714d93d94dea941d77a130"
        malpedia_version = "20201023"
        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 = { 4881ecf0090000 488b05???????? 4833c4 488985e0080000 448bea 488bd9 }
            // n = 6, score = 100
            //   4881ecf0090000       | mov                 eax, edx
            //   488b05????????       |                     
            //   4833c4               | mov                 eax, ecx
            //   488985e0080000       | jmp                 0x154a
            //   448bea               | inc                 ecx
            //   488bd9               | mov                 eax, esp

        $sequence_1 = { 488d152ddb0100 e8???????? 85c0 0f85aa110000 448d4004 488d1515db0100 }
            // n = 6, score = 100
            //   488d152ddb0100       | mov                 dword ptr [ebx + 0x28], ebp
            //   e8????????           |                     
            //   85c0                 | dec                 esp
            //   0f85aa110000         | mov                 dword ptr [esi], edi
            //   448d4004             | cmp                 edi, 0x13
            //   488d1515db0100       | dec                 eax

        $sequence_2 = { 66f3a7 75bf 488d4c2430 e8???????? 488d4c2430 ba281c0000 }
            // n = 6, score = 100
            //   66f3a7               | test                eax, eax
            //   75bf                 | jne                 0x2c7
            //   488d4c2430           | dec                 esp
            //   e8????????           |                     
            //   488d4c2430           | cmp                 edi, edi
            //   ba281c0000           | inc                 ecx

        $sequence_3 = { 8bc2 48c1e803 488d44d808 410fb70c44 0fb6c2 2407 }
            // n = 6, score = 100
            //   8bc2                 | mov                 dword ptr [eax + edx*8 + 8], eax
            //   48c1e803             | mov                 edx, 0xd
            //   488d44d808           | dec                 esp
            //   410fb70c44           | mov                 dword ptr [esp + 0x20], esi
            //   0fb6c2               | dec                 eax
            //   2407                 | add                 edx, edx

        $sequence_4 = { 41b800040000 e8???????? 488d8c24200c0000 41b801000000 ba00040000 }
            // n = 5, score = 100
            //   41b800040000         | mov                 dword ptr [esp + 0x5c], 0x1b091ab6
            //   e8????????           |                     
            //   488d8c24200c0000     | mov                 dword ptr [esp + 0x60], 0x92241eb7
            //   41b801000000         | mov                 dword ptr [esp + 0x64], 0xc4902d36
            //   ba00040000           | mov                 dword ptr [esp + 0x58], 0x67b0abfd

        $sequence_5 = { 488bd8 e8???????? 488d1532600100 488d8d50020000 ff15???????? 4c8d85e0010000 8d5634 }
            // n = 7, score = 100
            //   488bd8               | mov                 dword ptr [ebx + 0x20], esp
            //   e8????????           |                     
            //   488d1532600100       | test                al, al
            //   488d8d50020000       | jne                 0xfba
            //   ff15????????         |                     
            //   4c8d85e0010000       | xor                 eax, eax
            //   8d5634               | mov                 edx, edi

        $sequence_6 = { 8bd6 4a894cf008 488bcb e8???????? 85c0 }
            // n = 5, score = 100
            //   8bd6                 | mov                 edx, dword ptr [edx + eax*8]
            //   4a894cf008           | dec                 ecx
            //   488bcb               | cmp                 ebx, dword ptr [esi + 0x10]
            //   e8????????           |                     
            //   85c0                 | jae                 0x30f

        $sequence_7 = { 720b b957000780 e8???????? cc 4863c8 488b4308 4803d2 }
            // n = 7, score = 100
            //   720b                 | mov                 eax, 0xffffffff
            //   b957000780           | dec                 eax
            //   e8????????           |                     
            //   cc                   | cmova               ebx, eax
            //   4863c8               | nop                 
            //   488b4308             | dec                 eax
            //   4803d2               | mov                 edx, eax

        $sequence_8 = { 4889442420 ff15???????? 488b4c2438 488d542444 4533c9 448bc7 ff15???????? }
            // n = 7, score = 100
            //   4889442420           | lea                 edx, [0x1e0ac]
            //   ff15????????         |                     
            //   488b4c2438           | dec                 eax
            //   488d542444           | lea                 ecx, [0x29595]
            //   4533c9               | nop                 
            //   448bc7               | inc                 ebp
            //   ff15????????         |                     

        $sequence_9 = { 03df 4863cb 42890439 8d4304 488b8d30650000 4833cc }
            // n = 6, score = 100
            //   03df                 | mov                 dword ptr [esp + 8], 0xc44754f0
            //   4863cb               | mov                 dword ptr [esp + 0xc], 0xa4a33437
            //   42890439             | dec                 esp
            //   8d4304               | arpl                dx, cx
            //   488b8d30650000       | mov                 eax, 0x55555556
            //   4833cc               | dec                 eax

    condition:
        7 of them and filesize < 409600
}