rule win_lightneuron_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2020-05-30"
        version = "1"
        description = "autogenerated rule brought to you by yara-signator"
        tool = "yara-signator v0.4.0"
        tool_config = "callsandjumps;datarefs;binvalue"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.lightneuron"
        malpedia_rule_date = "20200529"
        malpedia_hash = "92c362319514e5a6da26204961446caa3a8b32a8"
        malpedia_version = "20200529"
        malpedia_license = "CC BY-NC-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 / approach 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 = { 75de 85ed 7454 4c3b642430 721e 498d542401 }
            // n = 6, score = 100
            //   75de                 | inc                 ebx
            //   85ed                 | test                eax, eax
            //   7454                 | je                  0xdcd
            //   4c3b642430           | dec                 esp
            //   721e                 | mov                 esp, dword ptr [esp + 0xe0]
            //   498d542401           | dec                 eax

        $sequence_1 = { 8bc2 448bc5 48c1e810 448bce 0fb6c8 8bc5 418b948ed0030300 }
            // n = 7, score = 100
            //   8bc2                 | sub                 eax, 4
            //   448bc5               | dec                 ecx
            //   48c1e810             | sub                 edi, 1
            //   448bce               | jne                 0x1c38
            //   0fb6c8               | jmp                 0x1c4e
            //   8bc5                 | cmp                 dword ptr [eax], 0
            //   418b948ed0030300     | jne                 0x1c62

        $sequence_2 = { 448ba48dc0ed0300 410fb6c1 4433a485c0e90300 41337508 410fb6c2 4433a48580d90300 410fb6c3 }
            // n = 7, score = 100
            //   448ba48dc0ed0300     | pop                 edi
            //   410fb6c1             | ret                 
            //   4433a485c0e90300     | cmp                 cl, 0x20
            //   41337508             | jne                 0xb23
            //   410fb6c2             | mov                 dword ptr [esi + 0x28], 5
            //   4433a48580d90300     | dec                 eax
            //   410fb6c3             | add                 esp, 0x20

        $sequence_3 = { c1e810 488bcf 8844243e e8???????? 488d35c760ffff 8b03 3d02010000 }
            // n = 7, score = 100
            //   c1e810               | mov                 eax, dword ptr [esp + 0x50]
            //   488bcf               | dec                 eax
            //   8844243e             | mov                 ebx, dword ptr [esp + 0xf0]
            //   e8????????           |                     
            //   488d35c760ffff       | mov                 edi, dword ptr [esp + 0xe8]
            //   8b03                 | dec                 esp
            //   3d02010000           | mov                 ebp, dword ptr [esp + 0x48]

        $sequence_4 = { 448b5314 4183d100 450fb7c2 41c1ea10 418bc8 418bd2 0fafcf }
            // n = 7, score = 100
            //   448b5314             | add                 esp, 8
            //   4183d100             | ret                 
            //   450fb7c2             | inc                 ecx
            //   41c1ea10             | cmp                 edx, 0x4b0
            //   418bc8               | jne                 0x71a
            //   418bd2               | movzx               ecx, byte ptr [edx + 1]
            //   0fafcf               | movzx               eax, byte ptr [edx]

        $sequence_5 = { 33ca 453bc3 0fb6d1 7cd5 418bd1 4c8d056bd40100 41ba0a000000 }
            // n = 7, score = 100
            //   33ca                 | mov                 ecx, ebx
            //   453bc3               | inc                 esp
            //   0fb6d1               | mov                 dword ptr [esp + 0x88], edi
            //   7cd5                 | inc                 ebp
            //   418bd1               | mov                 esi, edi
            //   4c8d056bd40100       | mov                 ecx, 0x4ae
            //   41ba0a000000         | inc                 esp

        $sequence_6 = { 83ea03 7447 81faf20f0000 7533 488b5318 488b4b10 4889742430 }
            // n = 7, score = 100
            //   83ea03               | pop                 edi
            //   7447                 | je                  0x1dfb
            //   81faf20f0000         | dec                 esp
            //   7533                 | mov                 eax, dword ptr [esp + 0x30]
            //   488b5318             | xor                 edx, edx
            //   488b4b10             | dec                 eax
            //   4889742430           | mov                 ecx, eax

        $sequence_7 = { 767f 498d7f01 6666666666660f1f840000000000 0fb617 ffc3 48ffc7 88542470 }
            // n = 7, score = 100
            //   767f                 | mov                 edx, dword ptr [ebp + 0xc]
            //   498d7f01             | inc                 esp
            //   6666666666660f1f840000000000     | mov    eax, dword ptr [ebp + 4]
            //   0fb617               | mov                 eax, edx
            //   ffc3                 | shr                 eax, 0x10
            //   48ffc7               | movzx               ecx, al
            //   88542470             | cmp                 ax, cx

        $sequence_8 = { 0f858d000000 83c801 48896c2440 8b6c2460 83fd02 894128 }
            // n = 6, score = 100
            //   0f858d000000         | dec                 eax
            //   83c801               | mov                 eax, dword ptr [ebx + 0x18]
            //   48896c2440           | dec                 eax
            //   8b6c2460             | mov                 ecx, dword ptr [eax + 8]
            //   83fd02               | dec                 eax
            //   894128               | test                ecx, ecx

        $sequence_9 = { 741e 448b842418010000 33d2 488bcf 41c1e002 e8???????? }
            // n = 6, score = 100
            //   741e                 | inc                 ecx
            //   448b842418010000     | lea                 edx, [ecx + 0x64]
            //   33d2                 | inc                 esp
            //   488bcf               | mov                 eax, eax
            //   41c1e002             | inc                 ebp
            //   e8????????           |                     

    condition:
        7 of them and filesize < 573440
}