rule win_rhino_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-05-04"
        version = "1"
        description = "Detects win.rhino."
        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.rhino"
        malpedia_rule_date = "20260422"
        malpedia_hash = "a182e35da64e6d71cb55f125c4d4225196523f14"
        malpedia_version = "20260504"
        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 = { 7528 8d85c0feffff c785c0feffff14010000 50 ff15???????? 83bdd0feffff02 740f }
            // n = 7, score = 400
            //   7528                 | jne                 0x2a
            //   8d85c0feffff         | lea                 eax, [ebp - 0x140]
            //   c785c0feffff14010000     | mov    dword ptr [ebp - 0x140], 0x114
            //   50                   | push                eax
            //   ff15????????         |                     
            //   83bdd0feffff02       | cmp                 dword ptr [ebp - 0x130], 2
            //   740f                 | je                  0x11

        $sequence_1 = { 03fa 894110 8b4c2418 13de 8b01 f76514 8bf0 }
            // n = 7, score = 400
            //   03fa                 | add                 edi, edx
            //   894110               | mov                 dword ptr [ecx + 0x10], eax
            //   8b4c2418             | mov                 ecx, dword ptr [esp + 0x18]
            //   13de                 | adc                 ebx, esi
            //   8b01                 | mov                 eax, dword ptr [ecx]
            //   f76514               | mul                 dword ptr [ebp + 0x14]
            //   8bf0                 | mov                 esi, eax

        $sequence_2 = { c20c00 ff7510 8b06 ff7508 ff5020 84c0 74cf }
            // n = 7, score = 400
            //   c20c00               | ret                 0xc
            //   ff7510               | push                dword ptr [ebp + 0x10]
            //   8b06                 | mov                 eax, dword ptr [esi]
            //   ff7508               | push                dword ptr [ebp + 8]
            //   ff5020               | call                dword ptr [eax + 0x20]
            //   84c0                 | test                al, al
            //   74cf                 | je                  0xffffffd1

        $sequence_3 = { 03ca 03c1 eb03 8b4710 8b5c2420 8bd0 }
            // n = 6, score = 400
            //   03ca                 | add                 ecx, edx
            //   03c1                 | add                 eax, ecx
            //   eb03                 | jmp                 5
            //   8b4710               | mov                 eax, dword ptr [edi + 0x10]
            //   8b5c2420             | mov                 ebx, dword ptr [esp + 0x20]
            //   8bd0                 | mov                 edx, eax

        $sequence_4 = { 5b c20400 6a2c b8???????? e8???????? 8bf9 8b750c }
            // n = 7, score = 400
            //   5b                   | pop                 ebx
            //   c20400               | ret                 4
            //   6a2c                 | push                0x2c
            //   b8????????           |                     
            //   e8????????           |                     
            //   8bf9                 | mov                 edi, ecx
            //   8b750c               | mov                 esi, dword ptr [ebp + 0xc]

        $sequence_5 = { e8???????? 83f8ff 7432 50 6a00 8d45b0 8bce }
            // n = 7, score = 400
            //   e8????????           |                     
            //   83f8ff               | cmp                 eax, -1
            //   7432                 | je                  0x34
            //   50                   | push                eax
            //   6a00                 | push                0
            //   8d45b0               | lea                 eax, [ebp - 0x50]
            //   8bce                 | mov                 ecx, esi

        $sequence_6 = { 33442434 8bcf 3344242c 33442420 d1c0 8944242c }
            // n = 6, score = 400
            //   33442434             | xor                 eax, dword ptr [esp + 0x34]
            //   8bcf                 | mov                 ecx, edi
            //   3344242c             | xor                 eax, dword ptr [esp + 0x2c]
            //   33442420             | xor                 eax, dword ptr [esp + 0x20]
            //   d1c0                 | rol                 eax, 1
            //   8944242c             | mov                 dword ptr [esp + 0x2c], eax

        $sequence_7 = { c1cb02 33c7 03c1 03f0 8b442464 8bce c1c105 }
            // n = 7, score = 400
            //   c1cb02               | ror                 ebx, 2
            //   33c7                 | xor                 eax, edi
            //   03c1                 | add                 eax, ecx
            //   03f0                 | add                 esi, eax
            //   8b442464             | mov                 eax, dword ptr [esp + 0x64]
            //   8bce                 | mov                 ecx, esi
            //   c1c105               | rol                 ecx, 5

        $sequence_8 = { 8945a4 83f801 7603 48 eb02 33c0 23c6 }
            // n = 7, score = 400
            //   8945a4               | mov                 dword ptr [ebp - 0x5c], eax
            //   83f801               | cmp                 eax, 1
            //   7603                 | jbe                 5
            //   48                   | dec                 eax
            //   eb02                 | jmp                 4
            //   33c0                 | xor                 eax, eax
            //   23c6                 | and                 eax, esi

        $sequence_9 = { 8b4f14 8b4114 3b410c 7507 8bcf e8???????? 33c0 }
            // n = 7, score = 400
            //   8b4f14               | mov                 ecx, dword ptr [edi + 0x14]
            //   8b4114               | mov                 eax, dword ptr [ecx + 0x14]
            //   3b410c               | cmp                 eax, dword ptr [ecx + 0xc]
            //   7507                 | jne                 9
            //   8bcf                 | mov                 ecx, edi
            //   e8????????           |                     
            //   33c0                 | xor                 eax, eax

    condition:
        7 of them and filesize < 1288192
}