rule win_rising_sun_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2020-10-14"
        version = "1"
        description = "autogenerated rule brought to you by yara-signator"
        tool = "yara-signator v0.5.0"
        tool_config = "callsandjumps;datarefs;binvalue"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.rising_sun"
        malpedia_rule_date = "20201014"
        malpedia_hash = "a7e3bd57eaf12bf3ea29a863c041091ba3af9ac9"
        malpedia_version = "20201014"
        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 = { 48895c2408 55 488dac2480f1ffff 4881ec800f0000 488b05???????? 4833c4 488985700e0000 }
            // n = 7, score = 100
            //   48895c2408           | mov                 dword ptr [ebp - 0x78], 0xd68d27e7
            //   55                   | mov                 dword ptr [ebp - 0x74], 0x4bea39bb
            //   488dac2480f1ffff     | mov                 dword ptr [ebp - 0x70], 0xb88c201
            //   4881ec800f0000       | mov                 dword ptr [ebp - 0x6c], 0x37cd2430
            //   488b05????????       |                     
            //   4833c4               | mov                 dword ptr [ebp - 0x80], 0x40c9497
            //   488985700e0000       | mov                 dword ptr [ebp - 0x7c], 0xe46b74ed

        $sequence_1 = { 4c8d15bb480100 4885c0 7404 4c8d5010 8bcb e8???????? 418902 }
            // n = 7, score = 100
            //   4c8d15bb480100       | add                 eax, 4
            //   4885c0               | mov                 byte ptr [esp + 0x58], 0
            //   7404                 | dec                 eax
            //   4c8d5010             | inc                 esi
            //   8bcb                 | inc                 ecx
            //   e8????????           |                     
            //   418902               | inc                 edx

        $sequence_2 = { e8???????? 4863e8 85c0 0f88c4feffff 4d8bc4 488bd6 488bcb }
            // n = 7, score = 100
            //   e8????????           |                     
            //   4863e8               | dec                 eax
            //   85c0                 | mov                 dword ptr [ebx + 0x10], ebp
            //   0f88c4feffff         | jb                  0x52a
            //   4d8bc4               | dec                 eax
            //   488bd6               | lea                 edi, [ebx + 0x58]
            //   488bcb               | mov                 esi, 6

        $sequence_3 = { c74424502829ea8b c7442454693e5f4d c7442458fd32badc c744245cb61a091b c7442460b71e2492 c7442464362d90c4 }
            // n = 6, score = 100
            //   c74424502829ea8b     | dec                 eax
            //   c7442454693e5f4d     | lea                 ecx, [0x29583]
            //   c7442458fd32badc     | nop                 
            //   c744245cb61a091b     | dec                 eax
            //   c7442460b71e2492     | lea                 ecx, [0x29589]
            //   c7442464362d90c4     | nop                 

        $sequence_4 = { 8bce e8???????? eb2b 83f8ff 7526 4c8d25c7400100 493bdc }
            // n = 7, score = 100
            //   8bce                 | lea                 edx, [ebp + 0x10]
            //   e8????????           |                     
            //   eb2b                 | repne scasd         eax, dword ptr es:[edi]
            //   83f8ff               | dec                 eax
            //   7526                 | or                  ecx, 0xffffffff
            //   4c8d25c7400100       | dec                 eax
            //   493bdc               | or                  ecx, 0xffffffff

        $sequence_5 = { c744247c3ecc0cc2 c74580af6c9d01 c74584614a63ca c74588ed31515d e8???????? 488d157ae50100 }
            // n = 6, score = 100
            //   c744247c3ecc0cc2     | lea                 ecx, [esp + 0x28]
            //   c74580af6c9d01       | nop                 
            //   c74584614a63ca       | dec                 eax
            //   c74588ed31515d       | lea                 ecx, [esp + 0x28]
            //   e8????????           |                     
            //   488d157ae50100       | dec                 eax

        $sequence_6 = { 6644897d04 c745e631000000 ff15???????? 488d9530220000 b900040000 ff15???????? 4c8d8d100c0000 }
            // n = 7, score = 100
            //   6644897d04           | dec                 eax
            //   c745e631000000       | arpl                bx, ax
            //   ff15????????         |                     
            //   488d9530220000       | inc                 ebx
            //   b900040000           | lea                 edx, [esi + ebp*4 + 8]
            //   ff15????????         |                     
            //   4c8d8d100c0000       | dec                 eax

        $sequence_7 = { 7528 448d4ffd 4c8d05cf290100 488d4c2430 33d2 c744242008000000 ff15???????? }
            // n = 7, score = 100
            //   7528                 | dec                 eax
            //   448d4ffd             | add                 eax, eax
            //   4c8d05cf290100       | dec                 eax
            //   488d4c2430           | add                 ecx, ecx
            //   33d2                 | dec                 ebp
            //   c744242008000000     | mov                 eax, esp
            //   ff15????????         |                     

        $sequence_8 = { 48215c2420 488d8520060000 448bc6 442bc0 488b442450 488d0da3730100 488b0cc1 }
            // n = 7, score = 100
            //   48215c2420           | lea                 ecx, [esp + 0x30]
            //   488d8520060000       | inc                 esp
            //   448bc6               | lea                 ecx, [edi - 3]
            //   442bc0               | xor                 edx, edx
            //   488b442450           | mov                 eax, dword ptr [ebp + 0xf84]
            //   488d0da3730100       | inc                 ebp
            //   488b0cc1             | xor                 ecx, ecx

        $sequence_9 = { 88440ffe 84c0 75f1 ff15???????? 8b7d87 4c8d05e1c80100 488d4da7 }
            // n = 7, score = 100
            //   88440ffe             | setne               bl
            //   84c0                 | dec                 eax
            //   75f1                 | cmp                 dword ptr [eax + 0x18], 8
            //   ff15????????         |                     
            //   8b7d87               | jb                  0x174c
            //   4c8d05e1c80100       | dec                 eax
            //   488d4da7             | mov                 eax, dword ptr [eax]

    condition:
        7 of them and filesize < 409600
}