rule win_neutrino_pos_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-09-17"
        version = "1"
        description = "Detects win.neutrino_pos."
        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.neutrino_pos"
        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 = { c785bcfeffff07070707 c785c0feffff07070707 c785c4feffff07070707 c785c8feffff07070707 c785ccfeffff07070707 c785d0feffff07070707 c785d4feffff07070707 }
            // n = 7, score = 200
            //   c785bcfeffff07070707     | mov    dword ptr [ebp - 0x144], 0x7070707
            //   c785c0feffff07070707     | mov    dword ptr [ebp - 0x140], 0x7070707
            //   c785c4feffff07070707     | mov    dword ptr [ebp - 0x13c], 0x7070707
            //   c785c8feffff07070707     | mov    dword ptr [ebp - 0x138], 0x7070707
            //   c785ccfeffff07070707     | mov    dword ptr [ebp - 0x134], 0x7070707
            //   c785d0feffff07070707     | mov    dword ptr [ebp - 0x130], 0x7070707
            //   c785d4feffff07070707     | mov    dword ptr [ebp - 0x12c], 0x7070707

        $sequence_1 = { 6804010000 8945f8 c645ff00 e8???????? 8bf0 e8???????? }
            // n = 6, score = 200
            //   6804010000           | push                0x104
            //   8945f8               | mov                 dword ptr [ebp - 8], eax
            //   c645ff00             | mov                 byte ptr [ebp - 1], 0
            //   e8????????           |                     
            //   8bf0                 | mov                 esi, eax
            //   e8????????           |                     

        $sequence_2 = { 6689759a 8bf2 6689759c 5e 6a6a 6689759e 5e }
            // n = 7, score = 200
            //   6689759a             | mov                 word ptr [ebp - 0x66], si
            //   8bf2                 | mov                 esi, edx
            //   6689759c             | mov                 word ptr [ebp - 0x64], si
            //   5e                   | pop                 esi
            //   6a6a                 | push                0x6a
            //   6689759e             | mov                 word ptr [ebp - 0x62], si
            //   5e                   | pop                 esi

        $sequence_3 = { 8bde 66895d92 8bd8 66895d94 5b 6a6e 66895d96 }
            // n = 7, score = 200
            //   8bde                 | mov                 ebx, esi
            //   66895d92             | mov                 word ptr [ebp - 0x6e], bx
            //   8bd8                 | mov                 ebx, eax
            //   66895d94             | mov                 word ptr [ebp - 0x6c], bx
            //   5b                   | pop                 ebx
            //   6a6e                 | push                0x6e
            //   66895d96             | mov                 word ptr [ebp - 0x6a], bx

        $sequence_4 = { 6800000100 8d85e8fffdff 6a00 50 c645ff00 c745e8ff422764 c745ec30c63c28 }
            // n = 7, score = 200
            //   6800000100           | push                0x10000
            //   8d85e8fffdff         | lea                 eax, [ebp - 0x20018]
            //   6a00                 | push                0
            //   50                   | push                eax
            //   c645ff00             | mov                 byte ptr [ebp - 1], 0
            //   c745e8ff422764       | mov                 dword ptr [ebp - 0x18], 0x642742ff
            //   c745ec30c63c28       | mov                 dword ptr [ebp - 0x14], 0x283cc630

        $sequence_5 = { 66898d64ffffff 59 6a74 8bf1 6689b566ffffff 5e 6a61 }
            // n = 7, score = 200
            //   66898d64ffffff       | mov                 word ptr [ebp - 0x9c], cx
            //   59                   | pop                 ecx
            //   6a74                 | push                0x74
            //   8bf1                 | mov                 esi, ecx
            //   6689b566ffffff       | mov                 word ptr [ebp - 0x9a], si
            //   5e                   | pop                 esi
            //   6a61                 | push                0x61

        $sequence_6 = { 66894d98 59 6a74 6689459e 66894d9a 59 6a42 }
            // n = 7, score = 200
            //   66894d98             | mov                 word ptr [ebp - 0x68], cx
            //   59                   | pop                 ecx
            //   6a74                 | push                0x74
            //   6689459e             | mov                 word ptr [ebp - 0x62], ax
            //   66894d9a             | mov                 word ptr [ebp - 0x66], cx
            //   59                   | pop                 ecx
            //   6a42                 | push                0x42

        $sequence_7 = { 66898572ffffff 58 8bc8 66898d74ffffff 66898d76ffffff }
            // n = 5, score = 200
            //   66898572ffffff       | mov                 word ptr [ebp - 0x8e], ax
            //   58                   | pop                 eax
            //   8bc8                 | mov                 ecx, eax
            //   66898d74ffffff       | mov                 word ptr [ebp - 0x8c], cx
            //   66898d76ffffff       | mov                 word ptr [ebp - 0x8a], cx

        $sequence_8 = { ffd0 85c0 0f8467010000 56 57 e8???????? 59 }
            // n = 7, score = 200
            //   ffd0                 | call                eax
            //   85c0                 | test                eax, eax
            //   0f8467010000         | je                  0x16d
            //   56                   | push                esi
            //   57                   | push                edi
            //   e8????????           |                     
            //   59                   | pop                 ecx

        $sequence_9 = { 81ecb4000000 6a54 58 6a6f }
            // n = 4, score = 200
            //   81ecb4000000         | sub                 esp, 0xb4
            //   6a54                 | push                0x54
            //   58                   | pop                 eax
            //   6a6f                 | push                0x6f

    condition:
        7 of them and filesize < 188416
}