rule win_targetcompany_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-09-17"
        version = "1"
        description = "Detects win.targetcompany."
        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.targetcompany"
        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 = { ffb42430050000 8db42404010000 e8???????? 8bc6 50 899c244c450100 e8???????? }
            // n = 7, score = 500
            //   ffb42430050000       | push                dword ptr [esp + 0x530]
            //   8db42404010000       | lea                 esi, [esp + 0x104]
            //   e8????????           |                     
            //   8bc6                 | mov                 eax, esi
            //   50                   | push                eax
            //   899c244c450100       | mov                 dword ptr [esp + 0x1454c], ebx
            //   e8????????           |                     

        $sequence_1 = { 8985a0feffff 8b85bcfeffff 8995a4feffff 8b35???????? 3bfb 8b3d???????? 899db0feffff }
            // n = 7, score = 500
            //   8985a0feffff         | mov                 dword ptr [ebp - 0x160], eax
            //   8b85bcfeffff         | mov                 eax, dword ptr [ebp - 0x144]
            //   8995a4feffff         | mov                 dword ptr [ebp - 0x15c], edx
            //   8b35????????         |                     
            //   3bfb                 | cmp                 edi, ebx
            //   8b3d????????         |                     
            //   899db0feffff         | mov                 dword ptr [ebp - 0x150], ebx

        $sequence_2 = { 89561c ff75b8 99 8945f8 8955fc e8???????? 6a00 }
            // n = 7, score = 500
            //   89561c               | mov                 dword ptr [esi + 0x1c], edx
            //   ff75b8               | push                dword ptr [ebp - 0x48]
            //   99                   | cdq                 
            //   8945f8               | mov                 dword ptr [ebp - 8], eax
            //   8955fc               | mov                 dword ptr [ebp - 4], edx
            //   e8????????           |                     
            //   6a00                 | push                0

        $sequence_3 = { e8???????? 8db564ffffff e8???????? e8???????? 6a14 59 8db5ccfeffff }
            // n = 7, score = 500
            //   e8????????           |                     
            //   8db564ffffff         | lea                 esi, [ebp - 0x9c]
            //   e8????????           |                     
            //   e8????????           |                     
            //   6a14                 | push                0x14
            //   59                   | pop                 ecx
            //   8db5ccfeffff         | lea                 esi, [ebp - 0x134]

        $sequence_4 = { 3bf7 0f84c7000000 397dd4 742d 8b45d8 03c0 50 }
            // n = 7, score = 500
            //   3bf7                 | cmp                 esi, edi
            //   0f84c7000000         | je                  0xcd
            //   397dd4               | cmp                 dword ptr [ebp - 0x2c], edi
            //   742d                 | je                  0x2f
            //   8b45d8               | mov                 eax, dword ptr [ebp - 0x28]
            //   03c0                 | add                 eax, eax
            //   50                   | push                eax

        $sequence_5 = { 7639 8b4d0c 8d75f4 894df4 8945f8 e8???????? 0fb70b }
            // n = 7, score = 500
            //   7639                 | jbe                 0x3b
            //   8b4d0c               | mov                 ecx, dword ptr [ebp + 0xc]
            //   8d75f4               | lea                 esi, [ebp - 0xc]
            //   894df4               | mov                 dword ptr [ebp - 0xc], ecx
            //   8945f8               | mov                 dword ptr [ebp - 8], eax
            //   e8????????           |                     
            //   0fb70b               | movzx               ecx, word ptr [ebx]

        $sequence_6 = { 50 e8???????? 8bbd9cf7ffff 83c41c 3bbda0f7ffff 7605 e8???????? }
            // n = 7, score = 500
            //   50                   | push                eax
            //   e8????????           |                     
            //   8bbd9cf7ffff         | mov                 edi, dword ptr [ebp - 0x864]
            //   83c41c               | add                 esp, 0x1c
            //   3bbda0f7ffff         | cmp                 edi, dword ptr [ebp - 0x860]
            //   7605                 | jbe                 7
            //   e8????????           |                     

        $sequence_7 = { 6a10 59 8d7dbc f3a5 c745fc0a000000 53 }
            // n = 6, score = 500
            //   6a10                 | push                0x10
            //   59                   | pop                 ecx
            //   8d7dbc               | lea                 edi, [ebp - 0x44]
            //   f3a5                 | rep movsd           dword ptr es:[edi], dword ptr [esi]
            //   c745fc0a000000       | mov                 dword ptr [ebp - 4], 0xa
            //   53                   | push                ebx

        $sequence_8 = { 83ec1c 56 8b35???????? 8b4604 80782900 57 8975f4 }
            // n = 7, score = 500
            //   83ec1c               | sub                 esp, 0x1c
            //   56                   | push                esi
            //   8b35????????         |                     
            //   8b4604               | mov                 eax, dword ptr [esi + 4]
            //   80782900             | cmp                 byte ptr [eax + 0x29], 0
            //   57                   | push                edi
            //   8975f4               | mov                 dword ptr [ebp - 0xc], esi

        $sequence_9 = { 6a5c 5f 48 6639bde8fdffff 0f8546010000 }
            // n = 5, score = 500
            //   6a5c                 | push                0x5c
            //   5f                   | pop                 edi
            //   48                   | dec                 eax
            //   6639bde8fdffff       | cmp                 word ptr [ebp - 0x218], di
            //   0f8546010000         | jne                 0x14c

    condition:
        7 of them and filesize < 328704
}