rule win_diztakun_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-09-17"
        version = "1"
        description = "Detects win.diztakun."
        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.diztakun"
        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 = { c644242001 8b442428 83c0f0 8d480c }
            // n = 4, score = 100
            //   c644242001           | mov                 byte ptr [esp + 0x20], 1
            //   8b442428             | mov                 eax, dword ptr [esp + 0x28]
            //   83c0f0               | add                 eax, -0x10
            //   8d480c               | lea                 ecx, [eax + 0xc]

        $sequence_1 = { 8b4204 56 ffd0 c644242001 8b442428 }
            // n = 5, score = 100
            //   8b4204               | mov                 eax, dword ptr [edx + 4]
            //   56                   | push                esi
            //   ffd0                 | call                eax
            //   c644242001           | mov                 byte ptr [esp + 0x20], 1
            //   8b442428             | mov                 eax, dword ptr [esp + 0x28]

        $sequence_2 = { c644244003 8b74241c 50 51 83c6f0 }
            // n = 5, score = 100
            //   c644244003           | mov                 byte ptr [esp + 0x40], 3
            //   8b74241c             | mov                 esi, dword ptr [esp + 0x1c]
            //   50                   | push                eax
            //   51                   | push                ecx
            //   83c6f0               | add                 esi, -0x10

        $sequence_3 = { 50 ff15???????? 3bc3 7417 8d8d8cfdffff 51 56 }
            // n = 7, score = 100
            //   50                   | push                eax
            //   ff15????????         |                     
            //   3bc3                 | cmp                 eax, ebx
            //   7417                 | je                  0x19
            //   8d8d8cfdffff         | lea                 ecx, [ebp - 0x274]
            //   51                   | push                ecx
            //   56                   | push                esi

        $sequence_4 = { 50 8b4204 ffd0 8ac3 8b4c243c 64890d00000000 59 }
            // n = 7, score = 100
            //   50                   | push                eax
            //   8b4204               | mov                 eax, dword ptr [edx + 4]
            //   ffd0                 | call                eax
            //   8ac3                 | mov                 al, bl
            //   8b4c243c             | mov                 ecx, dword ptr [esp + 0x3c]
            //   64890d00000000       | mov                 dword ptr fs:[0], ecx
            //   59                   | pop                 ecx

        $sequence_5 = { c784243002000000000000 ff15???????? 8bf8 85ff }
            // n = 4, score = 100
            //   c784243002000000000000     | mov    dword ptr [esp + 0x230], 0
            //   ff15????????         |                     
            //   8bf8                 | mov                 edi, eax
            //   85ff                 | test                edi, edi

        $sequence_6 = { 8b4508 56 8985ccfdffff 8bf1 8d45f4 756b }
            // n = 6, score = 100
            //   8b4508               | mov                 eax, dword ptr [ebp + 8]
            //   56                   | push                esi
            //   8985ccfdffff         | mov                 dword ptr [ebp - 0x234], eax
            //   8bf1                 | mov                 esi, ecx
            //   8d45f4               | lea                 eax, [ebp - 0xc]
            //   756b                 | jne                 0x6d

        $sequence_7 = { 8d542424 52 c68424e40700001a e8???????? }
            // n = 4, score = 100
            //   8d542424             | lea                 edx, [esp + 0x24]
            //   52                   | push                edx
            //   c68424e40700001a     | mov                 byte ptr [esp + 0x7e4], 0x1a
            //   e8????????           |                     

        $sequence_8 = { 50 8b4204 ffd0 e9???????? 8d4c2414 }
            // n = 5, score = 100
            //   50                   | push                eax
            //   8b4204               | mov                 eax, dword ptr [edx + 4]
            //   ffd0                 | call                eax
            //   e9????????           |                     
            //   8d4c2414             | lea                 ecx, [esp + 0x14]

        $sequence_9 = { 83c010 8903 c644241c02 8d7e28 e8???????? 33c9 3bc5 }
            // n = 7, score = 100
            //   83c010               | add                 eax, 0x10
            //   8903                 | mov                 dword ptr [ebx], eax
            //   c644241c02           | mov                 byte ptr [esp + 0x1c], 2
            //   8d7e28               | lea                 edi, [esi + 0x28]
            //   e8????????           |                     
            //   33c9                 | xor                 ecx, ecx
            //   3bc5                 | cmp                 eax, ebp

    condition:
        7 of them and filesize < 688128
}