rule win_unidentified_044_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-09-17"
        version = "1"
        description = "Detects win.unidentified_044."
        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_044"
        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 = { 52 ff15???????? a1???????? 5f 85c0 7422 8d642400 }
            // n = 7, score = 100
            //   52                   | push                edx
            //   ff15????????         |                     
            //   a1????????           |                     
            //   5f                   | pop                 edi
            //   85c0                 | test                eax, eax
            //   7422                 | je                  0x24
            //   8d642400             | lea                 esp, [esp]

        $sequence_1 = { 8b3d???????? 68???????? ffd7 68???????? ffd7 8b15???????? 52 }
            // n = 7, score = 100
            //   8b3d????????         |                     
            //   68????????           |                     
            //   ffd7                 | call                edi
            //   68????????           |                     
            //   ffd7                 | call                edi
            //   8b15????????         |                     
            //   52                   | push                edx

        $sequence_2 = { a1???????? 56 50 be???????? b9???????? e8???????? }
            // n = 6, score = 100
            //   a1????????           |                     
            //   56                   | push                esi
            //   50                   | push                eax
            //   be????????           |                     
            //   b9????????           |                     
            //   e8????????           |                     

        $sequence_3 = { 7503 32c0 c3 56 68???????? ff15???????? }
            // n = 6, score = 100
            //   7503                 | jne                 5
            //   32c0                 | xor                 al, al
            //   c3                   | ret                 
            //   56                   | push                esi
            //   68????????           |                     
            //   ff15????????         |                     

        $sequence_4 = { 7505 395e04 7407 8b7620 3bf3 }
            // n = 5, score = 100
            //   7505                 | jne                 7
            //   395e04               | cmp                 dword ptr [esi + 4], ebx
            //   7407                 | je                  9
            //   8b7620               | mov                 esi, dword ptr [esi + 0x20]
            //   3bf3                 | cmp                 esi, ebx

        $sequence_5 = { 85c0 74e4 0fb60d???????? 89048d24837000 fe05???????? 85f6 }
            // n = 6, score = 100
            //   85c0                 | test                eax, eax
            //   74e4                 | je                  0xffffffe6
            //   0fb60d????????       |                     
            //   89048d24837000       | mov                 dword ptr [ecx*4 + 0x708324], eax
            //   fe05????????         |                     
            //   85f6                 | test                esi, esi

        $sequence_6 = { c64424125a bf02000000 3dfe000000 0f8797000000 33f6 6a01 8d442417 }
            // n = 7, score = 100
            //   c64424125a           | mov                 byte ptr [esp + 0x12], 0x5a
            //   bf02000000           | mov                 edi, 2
            //   3dfe000000           | cmp                 eax, 0xfe
            //   0f8797000000         | ja                  0x9d
            //   33f6                 | xor                 esi, esi
            //   6a01                 | push                1
            //   8d442417             | lea                 eax, [esp + 0x17]

        $sequence_7 = { ff15???????? 85c0 7442 8d4c2408 51 }
            // n = 5, score = 100
            //   ff15????????         |                     
            //   85c0                 | test                eax, eax
            //   7442                 | je                  0x44
            //   8d4c2408             | lea                 ecx, [esp + 8]
            //   51                   | push                ecx

        $sequence_8 = { 660137 ff4c2418 4a 83ef02 89542410 }
            // n = 5, score = 100
            //   660137               | add                 word ptr [edi], si
            //   ff4c2418             | dec                 dword ptr [esp + 0x18]
            //   4a                   | dec                 edx
            //   83ef02               | sub                 edi, 2
            //   89542410             | mov                 dword ptr [esp + 0x10], edx

        $sequence_9 = { 55 e8???????? 83c40c 84c0 741f 8d642400 807c241200 }
            // n = 7, score = 100
            //   55                   | push                ebp
            //   e8????????           |                     
            //   83c40c               | add                 esp, 0xc
            //   84c0                 | test                al, al
            //   741f                 | je                  0x21
            //   8d642400             | lea                 esp, [esp]
            //   807c241200           | cmp                 byte ptr [esp + 0x12], 0

    condition:
        7 of them and filesize < 90112
}