rule win_ddkong_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-09-17"
        version = "1"
        description = "Detects win.ddkong."
        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.ddkong"
        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 = { be04010000 56 68???????? ff35???????? ff55fc 56 }
            // n = 6, score = 100
            //   be04010000           | mov                 esi, 0x104
            //   56                   | push                esi
            //   68????????           |                     
            //   ff35????????         |                     
            //   ff55fc               | call                dword ptr [ebp - 4]
            //   56                   | push                esi

        $sequence_1 = { c645eb76 c645ec65 c645ed6e c645ee74 c645ef41 }
            // n = 5, score = 100
            //   c645eb76             | mov                 byte ptr [ebp - 0x15], 0x76
            //   c645ec65             | mov                 byte ptr [ebp - 0x14], 0x65
            //   c645ed6e             | mov                 byte ptr [ebp - 0x13], 0x6e
            //   c645ee74             | mov                 byte ptr [ebp - 0x12], 0x74
            //   c645ef41             | mov                 byte ptr [ebp - 0x11], 0x41

        $sequence_2 = { 8d4114 8b38 8b48fc 8bf5 8bd1 03f7 8b78f8 }
            // n = 7, score = 100
            //   8d4114               | lea                 eax, [ecx + 0x14]
            //   8b38                 | mov                 edi, dword ptr [eax]
            //   8b48fc               | mov                 ecx, dword ptr [eax - 4]
            //   8bf5                 | mov                 esi, ebp
            //   8bd1                 | mov                 edx, ecx
            //   03f7                 | add                 esi, edi
            //   8b78f8               | mov                 edi, dword ptr [eax - 8]

        $sequence_3 = { 885c2426 c644242746 c644242872 88442429 8844242a c644242b00 ffd6 }
            // n = 7, score = 100
            //   885c2426             | mov                 byte ptr [esp + 0x26], bl
            //   c644242746           | mov                 byte ptr [esp + 0x27], 0x46
            //   c644242872           | mov                 byte ptr [esp + 0x28], 0x72
            //   88442429             | mov                 byte ptr [esp + 0x29], al
            //   8844242a             | mov                 byte ptr [esp + 0x2a], al
            //   c644242b00           | mov                 byte ptr [esp + 0x2b], 0
            //   ffd6                 | call                esi

        $sequence_4 = { 57 bb???????? 50 53 c645d447 c645d565 c645d674 }
            // n = 7, score = 100
            //   57                   | push                edi
            //   bb????????           |                     
            //   50                   | push                eax
            //   53                   | push                ebx
            //   c645d447             | mov                 byte ptr [ebp - 0x2c], 0x47
            //   c645d565             | mov                 byte ptr [ebp - 0x2b], 0x65
            //   c645d674             | mov                 byte ptr [ebp - 0x2a], 0x74

        $sequence_5 = { c644241561 c64424166c c644241746 c644241b00 ff15???????? }
            // n = 5, score = 100
            //   c644241561           | mov                 byte ptr [esp + 0x15], 0x61
            //   c64424166c           | mov                 byte ptr [esp + 0x16], 0x6c
            //   c644241746           | mov                 byte ptr [esp + 0x17], 0x46
            //   c644241b00           | mov                 byte ptr [esp + 0x1b], 0
            //   ff15????????         |                     

        $sequence_6 = { c645ba41 c645bb53 c645bc74 c645bd61 c645be72 c645bf74 c645c075 }
            // n = 7, score = 100
            //   c645ba41             | mov                 byte ptr [ebp - 0x46], 0x41
            //   c645bb53             | mov                 byte ptr [ebp - 0x45], 0x53
            //   c645bc74             | mov                 byte ptr [ebp - 0x44], 0x74
            //   c645bd61             | mov                 byte ptr [ebp - 0x43], 0x61
            //   c645be72             | mov                 byte ptr [ebp - 0x42], 0x72
            //   c645bf74             | mov                 byte ptr [ebp - 0x41], 0x74
            //   c645c075             | mov                 byte ptr [ebp - 0x40], 0x75

        $sequence_7 = { 8d45f0 51 50 8d45c0 6a0c 50 8d45cc }
            // n = 7, score = 100
            //   8d45f0               | lea                 eax, [ebp - 0x10]
            //   51                   | push                ecx
            //   50                   | push                eax
            //   8d45c0               | lea                 eax, [ebp - 0x40]
            //   6a0c                 | push                0xc
            //   50                   | push                eax
            //   8d45cc               | lea                 eax, [ebp - 0x34]

        $sequence_8 = { ff35???????? 6a40 ff55f4 57 50 56 a3???????? }
            // n = 7, score = 100
            //   ff35????????         |                     
            //   6a40                 | push                0x40
            //   ff55f4               | call                dword ptr [ebp - 0xc]
            //   57                   | push                edi
            //   50                   | push                eax
            //   56                   | push                esi
            //   a3????????           |                     

        $sequence_9 = { 53 ffd7 50 ffd6 8985e8feffff }
            // n = 5, score = 100
            //   53                   | push                ebx
            //   ffd7                 | call                edi
            //   50                   | push                eax
            //   ffd6                 | call                esi
            //   8985e8feffff         | mov                 dword ptr [ebp - 0x118], eax

    condition:
        7 of them and filesize < 81920
}