rule win_unidentified_076_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-09-17"
        version = "1"
        description = "Detects win.unidentified_076."
        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.unidentified_076"
        malpedia_rule_date = "20260916"
        malpedia_hash = "53a643781c18e08f4a50949af60172d837a0b6f6"
        malpedia_version = "20260917"
        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 = { 33d2 4489a530150000 4488642460 e8???????? 488d542460 448bc3 33c9 }
            // n = 7, score = 100
            //   33d2                 | js                  0x1aa3
            //   4489a530150000       | inc                 esp
            //   4488642460           | mov                 edx, dword ptr [ebx + 0x2c]
            //   e8????????           |                     
            //   488d542460           | inc                 ebp
            //   448bc3               | test                edx, edx
            //   33c9                 | jne                 0x1a42

        $sequence_1 = { 8b4718 894118 488b4e18 8b4714 394114 0f8566feffff 488b4778 }
            // n = 7, score = 100
            //   8b4718               | mov                 esi, ecx
            //   894118               | cmp                 dword ptr [ebp - 0x20], 3
            //   488b4e18             | jne                 0x17df
            //   8b4714               | inc                 esp
            //   394114               | mov                 dword ptr [esp + 0x28], esi
            //   0f8566feffff         | mov                 dword ptr [esp + 0x20], 3
            //   488b4778             | dec                 eax

        $sequence_2 = { 7527 488b8fc8000000 8bd8 ff9150010000 41b8ff1a0000 33d2 448bc8 }
            // n = 7, score = 100
            //   7527                 | dec                 esp
            //   488b8fc8000000       | mov                 dword ptr [esp + 0x18], eax
            //   8bd8                 | dec                 eax
            //   ff9150010000         | mov                 dword ptr [esp + 0x10], edx
            //   41b8ff1a0000         | pop                 ebp
            //   33d2                 | ret                 
            //   448bc8               | xor                 edi, edi

        $sequence_3 = { 488d97c0000000 4c63c0 85c0 7e1f 4c635738 488bcb 493bca }
            // n = 7, score = 100
            //   488d97c0000000       | dec                 ebp
            //   4c63c0               | mov                 eax, ebp
            //   85c0                 | xor                 edx, edx
            //   7e1f                 | dec                 eax
            //   4c635738             | lea                 edx, [esi + 0x988]
            //   488bcb               | dec                 eax
            //   493bca               | mov                 ecx, edi

        $sequence_4 = { 8b12 488bf9 488d4df0 33db c745f07220633a c745f425642c6c c745f83a25640a }
            // n = 7, score = 100
            //   8b12                 | dec                 eax
            //   488bf9               | add                 eax, 0x314
            //   488d4df0             | dec                 eax
            //   33db                 | cmp                 ecx, 0xa
            //   c745f07220633a       | cmp                 dword ptr [eax], 0x78
            //   c745f425642c6c       | jle                 0x1354
            //   c745f83a25640a       | mov                 dword ptr [eax], 0x78

        $sequence_5 = { 488b87c8000000 498bcc ff9000060000 488b87c8000000 488bcb ff9000060000 488b87c8000000 }
            // n = 7, score = 100
            //   488b87c8000000       | test                eax, eax
            //   498bcc               | jg                  0x13c
            //   ff9000060000         | dec                 eax
            //   488b87c8000000       | mov                 ecx, ebx
            //   488bcb               | dec                 esp
            //   ff9000060000         | mov                 eax, esi
            //   488b87c8000000       | mov                 dword ptr [esp + 0x20], 5

        $sequence_6 = { 448bcb 4889442420 ff542448 8bd8 33c0 85db }
            // n = 6, score = 100
            //   448bcb               | dec                 eax
            //   4889442420           | lea                 ecx, [ebp + 0x6ac]
            //   ff542448             | dec                 eax
            //   8bd8                 | lea                 edx, [0x715d]
            //   33c0                 | dec                 eax
            //   85db                 | lea                 ecx, [ebp + 0x4dc]

        $sequence_7 = { 4c8bc3 488bd7 ff9040070000 488b85c8000000 488d4f01 }
            // n = 5, score = 100
            //   4c8bc3               | dec                 eax
            //   488bd7               | lea                 edx, [ebp + 0x48]
            //   ff9040070000         | inc                 ecx
            //   488b85c8000000       | mov                 byte ptr [eax + edx], al
            //   488d4f01             | cmp                 byte ptr [edx], 0x2e

        $sequence_8 = { 488bce 4903d5 48895c2430 48897c2420 e8???????? 85c0 7416 }
            // n = 7, score = 100
            //   488bce               | mov                 ecx, dword ptr [eax + 0x19c]
            //   4903d5               | dec                 eax
            //   48895c2430           | mov                 edx, ebp
            //   48897c2420           | dec                 ecx
            //   e8????????           |                     
            //   85c0                 | mov                 ecx, esi
            //   7416                 | inc                 ecx

        $sequence_9 = { 488b86c8000000 498bcd ff90d0030000 eb35 488b9ec8000000 488dbe84060000 ff9350010000 }
            // n = 7, score = 100
            //   488b86c8000000       | mov                 edx, dword ptr [esi + 0x1348]
            //   498bcd               | dec                 esp
            //   ff90d0030000         | mov                 eax, dword ptr [esi + 0xc8]
            //   eb35                 | dec                 eax
            //   488b9ec8000000       | add                 ecx, 0x214
            //   488dbe84060000       | dec                 eax
            //   ff9350010000         | add                 edx, 0x88

    condition:
        7 of them and filesize < 114688
}