rule win_hyperbro_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2023-07-11"
        version = "1"
        description = "Detects win.hyperbro."
        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.hyperbro"
        malpedia_rule_date = "20230705"
        malpedia_hash = "42d0574f4405bd7d2b154d321d345acb18834a41"
        malpedia_version = "20230715"
        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 = { 83c410 52 c7460840000000 c7460402000000 }
            // n = 4, score = 400
            //   83c410               | add                 esp, 0x10
            //   52                   | push                edx
            //   c7460840000000       | mov                 dword ptr [esi + 8], 0x40
            //   c7460402000000       | mov                 dword ptr [esi + 4], 2

        $sequence_1 = { ff15???????? 53 8d4c240c 51 8d5618 894604 }
            // n = 6, score = 400
            //   ff15????????         |                     
            //   53                   | push                ebx
            //   8d4c240c             | lea                 ecx, [esp + 0xc]
            //   51                   | push                ecx
            //   8d5618               | lea                 edx, [esi + 0x18]
            //   894604               | mov                 dword ptr [esi + 4], eax

        $sequence_2 = { 8b462c c706???????? 85c0 7410 50 e8???????? }
            // n = 6, score = 400
            //   8b462c               | mov                 eax, dword ptr [esi + 0x2c]
            //   c706????????         |                     
            //   85c0                 | test                eax, eax
            //   7410                 | je                  0x12
            //   50                   | push                eax
            //   e8????????           |                     

        $sequence_3 = { 83c404 5f 5e c7450000000000 5d c70200000000 }
            // n = 6, score = 400
            //   83c404               | add                 esp, 4
            //   5f                   | pop                 edi
            //   5e                   | pop                 esi
            //   c7450000000000       | mov                 dword ptr [ebp], 0
            //   5d                   | pop                 ebp
            //   c70200000000         | mov                 dword ptr [edx], 0

        $sequence_4 = { 8b5710 52 e8???????? 8b470c 50 e8???????? }
            // n = 6, score = 400
            //   8b5710               | mov                 edx, dword ptr [edi + 0x10]
            //   52                   | push                edx
            //   e8????????           |                     
            //   8b470c               | mov                 eax, dword ptr [edi + 0xc]
            //   50                   | push                eax
            //   e8????????           |                     

        $sequence_5 = { 8bff 05ff000000 41 3d01feffff 0f878c010000 8bd5 2bd1 }
            // n = 7, score = 400
            //   8bff                 | mov                 edi, edi
            //   05ff000000           | add                 eax, 0xff
            //   41                   | inc                 ecx
            //   3d01feffff           | cmp                 eax, 0xfffffe01
            //   0f878c010000         | ja                  0x192
            //   8bd5                 | mov                 edx, ebp
            //   2bd1                 | sub                 edx, ecx

        $sequence_6 = { 8944242c 89442440 c744243003000000 e8???????? 83c404 6882000000 56 }
            // n = 7, score = 400
            //   8944242c             | mov                 dword ptr [esp + 0x2c], eax
            //   89442440             | mov                 dword ptr [esp + 0x40], eax
            //   c744243003000000     | mov                 dword ptr [esp + 0x30], 3
            //   e8????????           |                     
            //   83c404               | add                 esp, 4
            //   6882000000           | push                0x82
            //   56                   | push                esi

        $sequence_7 = { 89442458 7d09 3d33270000 7504 }
            // n = 4, score = 400
            //   89442458             | mov                 dword ptr [esp + 0x58], eax
            //   7d09                 | jge                 0xb
            //   3d33270000           | cmp                 eax, 0x2733
            //   7504                 | jne                 6

        $sequence_8 = { 893e 894608 eb09 8b16 03d1 }
            // n = 5, score = 400
            //   893e                 | mov                 dword ptr [esi], edi
            //   894608               | mov                 dword ptr [esi + 8], eax
            //   eb09                 | jmp                 0xb
            //   8b16                 | mov                 edx, dword ptr [esi]
            //   03d1                 | add                 edx, ecx

        $sequence_9 = { 52 8d7c2418 e8???????? 68???????? 8bc7 50 e8???????? }
            // n = 7, score = 400
            //   52                   | push                edx
            //   8d7c2418             | lea                 edi, [esp + 0x18]
            //   e8????????           |                     
            //   68????????           |                     
            //   8bc7                 | mov                 eax, edi
            //   50                   | push                eax
            //   e8????????           |                     

    condition:
        7 of them and filesize < 352256
}