rule win_unidentified_107_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-05-04"
        version = "1"
        description = "Detects win.unidentified_107."
        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_107"
        malpedia_rule_date = "20260422"
        malpedia_hash = "a182e35da64e6d71cb55f125c4d4225196523f14"
        malpedia_version = "20260504"
        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 = { 48c7c12f398d13 e8???????? 4989c7 48c7c12f398d13 e8???????? }
            // n = 5, score = 300
            //   48c7c12f398d13       | lea                 edx, [0x727c]
            //   e8????????           |                     
            //   4989c7               | movzx               edx, byte ptr [eax + edx]
            //   48c7c12f398d13       | mov                 eax, dword ptr [ebp - 8]
            //   e8????????           |                     

        $sequence_1 = { 75dc 4c89e9 4883c420 5b }
            // n = 4, score = 300
            //   75dc                 | mov                 esp, dword ptr [esp + 0x28]
            //   4c89e9               | dec                 ebp
            //   4883c420             | test                esp, esp
            //   5b                   | jne                 0x127

        $sequence_2 = { e8???????? 4989c7 48c7c10f15af3d e8???????? 4883c464 }
            // n = 5, score = 300
            //   e8????????           |                     
            //   4989c7               | mov                 byte ptr [ebp - 9], 0xba
            //   48c7c10f15af3d       | dec                 eax
            //   e8????????           |                     
            //   4883c464             | lea                 eax, [0x7ef3]

        $sequence_3 = { 0f8596010000 8b5308 83fa01 0f85cb010000 4883c30c 4c39e3 }
            // n = 6, score = 300
            //   0f8596010000         | dec                 eax
            //   8b5308               | lea                 edx, [0xffffff8a]
            //   83fa01               | dec                 eax
            //   0f85cb010000         | lea                 edx, [0x24e0]
            //   4883c30c             | dec                 eax
            //   4c39e3               | mov                 ecx, eax

        $sequence_4 = { 7e96 8b13 4883f80b 0f8f33010000 8b03 85c0 }
            // n = 6, score = 300
            //   7e96                 | jb                  0x8bf
            //   8b13                 | add                 eax, dword ptr [edx + 8]
            //   4883f80b             | dec                 eax
            //   0f8f33010000         | cmp                 ecx, eax
            //   8b03                 | jb                  0x8d3
            //   85c0                 | dec                 eax

        $sequence_5 = { 4883ec64 48c7c10f15af3d e8???????? 4989c7 48c7c10f15af3d e8???????? }
            // n = 6, score = 300
            //   4883ec64             | lea                 edx, [0x394c]
            //   48c7c10f15af3d       | dec                 eax
            //   e8????????           |                     
            //   4989c7               | sub                 esp, 0x100
            //   48c7c10f15af3d       | dec                 eax
            //   e8????????           |                     

        $sequence_6 = { 4829d1 410fb75014 498d541018 450fb74006 4585c0 }
            // n = 5, score = 300
            //   4829d1               | push                esp
            //   410fb75014           | push                ebx
            //   498d541018           | dec                 eax
            //   450fb74006           | sub                 esp, 0xc0
            //   4585c0               | dec                 eax

        $sequence_7 = { 4989d0 4c09f2 4585c0 490f49d0 4829c2 4c8d3c0a }
            // n = 6, score = 300
            //   4989d0               | lea                 esi, [esp + 0x40]
            //   4c09f2               | dec                 ecx
            //   4585c0               | mov                 esp, ecx
            //   490f49d0             | dec                 eax
            //   4829c2               | mov                 dword ptr [esp + 0x40], eax
            //   4c8d3c0a             | dec                 eax

        $sequence_8 = { 4989c4 4885c0 75e9 488b3d???????? 8b07 }
            // n = 5, score = 300
            //   4989c4               | lea                 eax, [ebp + 0x4c]
            //   4885c0               | dec                 eax
            //   75e9                 | mov                 dword ptr [eax], edx
            //   488b3d????????       |                     
            //   8b07                 | dec                 eax

        $sequence_9 = { 74d8 418d40ff 488d0480 4c8d4cc228 0f1f00 }
            // n = 5, score = 300
            //   74d8                 | inc                 ecx
            //   418d40ff             | cmp                 byte ptr [ecx], 0
            //   488d0480             | jne                 0xa3c
            //   4c8d4cc228           | dec                 ecx
            //   0f1f00               | mov                 ecx, esi

    condition:
        7 of them and filesize < 254976
}