rule win_remy_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-09-17"
        version = "1"
        description = "Detects win.remy."
        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.remy"
        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 = { 83c408 8d8424e8000000 50 8d8c24e0000000 51 8d9424f4000000 52 }
            // n = 7, score = 200
            //   83c408               | add                 esp, 8
            //   8d8424e8000000       | lea                 eax, [esp + 0xe8]
            //   50                   | push                eax
            //   8d8c24e0000000       | lea                 ecx, [esp + 0xe0]
            //   51                   | push                ecx
            //   8d9424f4000000       | lea                 edx, [esp + 0xf4]
            //   52                   | push                edx

        $sequence_1 = { 7409 57 e8???????? 83c404 c78424d0020000ffffffff 8b4c2420 51 }
            // n = 7, score = 200
            //   7409                 | je                  0xb
            //   57                   | push                edi
            //   e8????????           |                     
            //   83c404               | add                 esp, 4
            //   c78424d0020000ffffffff     | mov    dword ptr [esp + 0x2d0], 0xffffffff
            //   8b4c2420             | mov                 ecx, dword ptr [esp + 0x20]
            //   51                   | push                ecx

        $sequence_2 = { e8???????? 8d55b0 8d8decfeffff e8???????? 83c41c c645fc05 8b8df0feffff }
            // n = 7, score = 200
            //   e8????????           |                     
            //   8d55b0               | lea                 edx, [ebp - 0x50]
            //   8d8decfeffff         | lea                 ecx, [ebp - 0x114]
            //   e8????????           |                     
            //   83c41c               | add                 esp, 0x1c
            //   c645fc05             | mov                 byte ptr [ebp - 4], 5
            //   8b8df0feffff         | mov                 ecx, dword ptr [ebp - 0x110]

        $sequence_3 = { 8bc6 83e800 b9ffffffff 7436 48 7413 c745dc28ce4200 }
            // n = 7, score = 200
            //   8bc6                 | mov                 eax, esi
            //   83e800               | sub                 eax, 0
            //   b9ffffffff           | mov                 ecx, 0xffffffff
            //   7436                 | je                  0x38
            //   48                   | dec                 eax
            //   7413                 | je                  0x15
            //   c745dc28ce4200       | mov                 dword ptr [ebp - 0x24], 0x42ce28

        $sequence_4 = { 3d00000100 776b 6800100000 8d7748 53 56 }
            // n = 6, score = 200
            //   3d00000100           | cmp                 eax, 0x10000
            //   776b                 | ja                  0x6d
            //   6800100000           | push                0x1000
            //   8d7748               | lea                 esi, [edi + 0x48]
            //   53                   | push                ebx
            //   56                   | push                esi

        $sequence_5 = { 51 52 e8???????? 8b06 8d743004 8b06 83c40c }
            // n = 7, score = 200
            //   51                   | push                ecx
            //   52                   | push                edx
            //   e8????????           |                     
            //   8b06                 | mov                 eax, dword ptr [esi]
            //   8d743004             | lea                 esi, [eax + esi + 4]
            //   8b06                 | mov                 eax, dword ptr [esi]
            //   83c40c               | add                 esp, 0xc

        $sequence_6 = { 394e44 7505 394640 751a 8b7608 85f6 75ef }
            // n = 7, score = 200
            //   394e44               | cmp                 dword ptr [esi + 0x44], ecx
            //   7505                 | jne                 7
            //   394640               | cmp                 dword ptr [esi + 0x40], eax
            //   751a                 | jne                 0x1c
            //   8b7608               | mov                 esi, dword ptr [esi + 8]
            //   85f6                 | test                esi, esi
            //   75ef                 | jne                 0xfffffff1

        $sequence_7 = { ffd2 e9???????? 57 c68424d402000005 e8???????? c68424d402000002 8b44245c }
            // n = 7, score = 200
            //   ffd2                 | call                edx
            //   e9????????           |                     
            //   57                   | push                edi
            //   c68424d402000005     | mov                 byte ptr [esp + 0x2d4], 5
            //   e8????????           |                     
            //   c68424d402000002     | mov                 byte ptr [esp + 0x2d4], 2
            //   8b44245c             | mov                 eax, dword ptr [esp + 0x5c]

        $sequence_8 = { 894808 89700c 8d942408020000 bb01000000 897010 52 8bcf }
            // n = 7, score = 200
            //   894808               | mov                 dword ptr [eax + 8], ecx
            //   89700c               | mov                 dword ptr [eax + 0xc], esi
            //   8d942408020000       | lea                 edx, [esp + 0x208]
            //   bb01000000           | mov                 ebx, 1
            //   897010               | mov                 dword ptr [eax + 0x10], esi
            //   52                   | push                edx
            //   8bcf                 | mov                 ecx, edi

        $sequence_9 = { ff15???????? 85c0 7505 8b75f8 eb22 8b45e8 8d55ec }
            // n = 7, score = 200
            //   ff15????????         |                     
            //   85c0                 | test                eax, eax
            //   7505                 | jne                 7
            //   8b75f8               | mov                 esi, dword ptr [ebp - 8]
            //   eb22                 | jmp                 0x24
            //   8b45e8               | mov                 eax, dword ptr [ebp - 0x18]
            //   8d55ec               | lea                 edx, [ebp - 0x14]

    condition:
        7 of them and filesize < 507904
}