rule win_unidentified_107_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-09-17"
        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 = "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 = { 8b13 4883f80b 0f8f33010000 8b03 }
            // n = 4, score = 300
            //   8b13                 | jne                 0x2ba
            //   4883f80b             | mov                 eax, ebx
            //   0f8f33010000         | test                al, al
            //   8b03                 | jne                 0x2c5

        $sequence_1 = { 0f856e010000 e8???????? 4989d8 ba01000000 4c89e9 e8???????? 4189c6 }
            // n = 7, score = 300
            //   0f856e010000         | je                  0xb0e
            //   e8????????           |                     
            //   4989d8               | nop                 
            //   ba01000000           | dec                 ecx
            //   4c89e9               | arpl                ax, si
            //   e8????????           |                     
            //   4189c6               | dec                 esp

        $sequence_2 = { 0f8e16010000 488b05???????? 4531c9 4883c018 }
            // n = 4, score = 300
            //   0f8e16010000         | je                  0xb3
            //   488b05????????       |                     
            //   4531c9               | je                  0x2f9
            //   4883c018             | inc                 ecx

        $sequence_3 = { 0f83d6fdffff 4c8b35???????? 8b7304 448b2b }
            // n = 4, score = 300
            //   0f83d6fdffff         | nop                 dword ptr [eax]
            //   4c8b35????????       |                     
            //   8b7304               | mov                 eax, ebx
            //   448b2b               | dec                 eax

        $sequence_4 = { 48c7c164bd357e e8???????? 4989c7 48c7c164bd357e e8???????? 4883c464 488b4c2408 }
            // n = 7, score = 300
            //   48c7c164bd357e       | mov                 ecx, dword ptr [esp + 0x28]
            //   e8????????           |                     
            //   4989c7               | dec                 esp
            //   48c7c164bd357e       | mov                 ecx, esp
            //   e8????????           |                     
            //   4883c464             | dec                 eax
            //   488b4c2408           | test                eax, eax

        $sequence_5 = { 4889f8 f04c0fb12b 4989c4 4885c0 75e9 488b3d???????? }
            // n = 6, score = 300
            //   4889f8               | dec                 eax
            //   f04c0fb12b           | mov                 dword ptr [esp + 0x40], eax
            //   4989c4               | dec                 eax
            //   4885c0               | mov                 eax, 0x175c5054
            //   75e9                 | inc                 ebp
            //   488b3d????????       |                     

        $sequence_6 = { 85c0 0f8e9bfeffff 83e801 488b1d???????? 4531e4 }
            // n = 5, score = 300
            //   85c0                 | mov                 ecx, dword ptr [esp + 0x48]
            //   0f8e9bfeffff         | dec                 eax
            //   83e801               | cmp                 dword ptr [esp + 0x30], 0
            //   488b1d????????       |                     
            //   4531e4               | cmp                 eax, 1

        $sequence_7 = { 48c7c12f398d13 e8???????? 4883c464 488b4c2408 }
            // n = 4, score = 300
            //   48c7c12f398d13       | dec                 eax
            //   e8????????           |                     
            //   4883c464             | mov                 ecx, eax
            //   488b4c2408           | dec                 eax

        $sequence_8 = { 4c89442418 4c894c2420 4883ec64 48b96eccba8000000000 e8???????? }
            // n = 5, score = 300
            //   4c89442418           | dec                 eax
            //   4c894c2420           | mov                 edx, eax
            //   4883ec64             | dec                 eax
            //   48b96eccba8000000000     | lea    ebp, [esp + 0x80]
            //   e8????????           |                     

        $sequence_9 = { 4885c0 741b 48894308 488d8000010000 48894310 }
            // n = 5, score = 300
            //   4885c0               | cmp                 dword ptr [ebp - 8], 0x13
            //   741b                 | jbe                 0x31a
            //   48894308             | nop                 
            //   488d8000010000       | nop                 
            //   48894310             | dec                 eax

    condition:
        7 of them and filesize < 254976
}