rule win_soundbite_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2022-05-16"
        version = "1"
        description = "Detects win.soundbite."
        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.soundbite"
        malpedia_rule_date = "20220513"
        malpedia_hash = "7f4b2229e6ae614d86d74917f6d5b41890e62a26"
        malpedia_version = "20220516"
        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 = { 89480c 8b5310 8965fc 895010 e8???????? 8b4d10 8b550c }
            // n = 7, score = 100
            //   89480c               | mov                 dword ptr [eax + 0xc], ecx
            //   8b5310               | mov                 edx, dword ptr [ebx + 0x10]
            //   8965fc               | mov                 dword ptr [ebp - 4], esp
            //   895010               | mov                 dword ptr [eax + 0x10], edx
            //   e8????????           |                     
            //   8b4d10               | mov                 ecx, dword ptr [ebp + 0x10]
            //   8b550c               | mov                 edx, dword ptr [ebp + 0xc]

        $sequence_1 = { b818010000 8dbda4fcffff 899da4fcffff 899da8fcffff 899dacfcffff 889d0bfdffff e8???????? }
            // n = 7, score = 100
            //   b818010000           | mov                 eax, 0x118
            //   8dbda4fcffff         | lea                 edi, [ebp - 0x35c]
            //   899da4fcffff         | mov                 dword ptr [ebp - 0x35c], ebx
            //   899da8fcffff         | mov                 dword ptr [ebp - 0x358], ebx
            //   899dacfcffff         | mov                 dword ptr [ebp - 0x354], ebx
            //   889d0bfdffff         | mov                 byte ptr [ebp - 0x2f5], bl
            //   e8????????           |                     

        $sequence_2 = { 64a300000000 8965f0 8b5d08 8d45c8 8bcb e8???????? 8b4808 }
            // n = 7, score = 100
            //   64a300000000         | mov                 dword ptr fs:[0], eax
            //   8965f0               | mov                 dword ptr [ebp - 0x10], esp
            //   8b5d08               | mov                 ebx, dword ptr [ebp + 8]
            //   8d45c8               | lea                 eax, [ebp - 0x38]
            //   8bcb                 | mov                 ecx, ebx
            //   e8????????           |                     
            //   8b4808               | mov                 ecx, dword ptr [eax + 8]

        $sequence_3 = { 8d5588 898564ffffff 898568ffffff 89856cffffff 52 8d4584 }
            // n = 6, score = 100
            //   8d5588               | lea                 edx, [ebp - 0x78]
            //   898564ffffff         | mov                 dword ptr [ebp - 0x9c], eax
            //   898568ffffff         | mov                 dword ptr [ebp - 0x98], eax
            //   89856cffffff         | mov                 dword ptr [ebp - 0x94], eax
            //   52                   | push                edx
            //   8d4584               | lea                 eax, [ebp - 0x7c]

        $sequence_4 = { 807f1500 7558 8b570c 85d2 742b 8b450c }
            // n = 6, score = 100
            //   807f1500             | cmp                 byte ptr [edi + 0x15], 0
            //   7558                 | jne                 0x5a
            //   8b570c               | mov                 edx, dword ptr [edi + 0xc]
            //   85d2                 | test                edx, edx
            //   742b                 | je                  0x2d
            //   8b450c               | mov                 eax, dword ptr [ebp + 0xc]

        $sequence_5 = { c645fc0f 85db 742e 8d95f4feffff 52 8b8dfcfcffff c743140f000000 }
            // n = 7, score = 100
            //   c645fc0f             | mov                 byte ptr [ebp - 4], 0xf
            //   85db                 | test                ebx, ebx
            //   742e                 | je                  0x30
            //   8d95f4feffff         | lea                 edx, [ebp - 0x10c]
            //   52                   | push                edx
            //   8b8dfcfcffff         | mov                 ecx, dword ptr [ebp - 0x304]
            //   c743140f000000       | mov                 dword ptr [ebx + 0x14], 0xf

        $sequence_6 = { 8b4b10 894104 8b5310 8b4df0 894208 8b4310 }
            // n = 6, score = 100
            //   8b4b10               | mov                 ecx, dword ptr [ebx + 0x10]
            //   894104               | mov                 dword ptr [ecx + 4], eax
            //   8b5310               | mov                 edx, dword ptr [ebx + 0x10]
            //   8b4df0               | mov                 ecx, dword ptr [ebp - 0x10]
            //   894208               | mov                 dword ptr [edx + 8], eax
            //   8b4310               | mov                 eax, dword ptr [ebx + 0x10]

        $sequence_7 = { 83f86f 74c0 837d9000 0f85ac010000 8b458c 894588 85c0 }
            // n = 7, score = 100
            //   83f86f               | cmp                 eax, 0x6f
            //   74c0                 | je                  0xffffffc2
            //   837d9000             | cmp                 dword ptr [ebp - 0x70], 0
            //   0f85ac010000         | jne                 0x1b2
            //   8b458c               | mov                 eax, dword ptr [ebp - 0x74]
            //   894588               | mov                 dword ptr [ebp - 0x78], eax
            //   85c0                 | test                eax, eax

        $sequence_8 = { 50 8d45f4 64a300000000 83ec0c 33db }
            // n = 5, score = 100
            //   50                   | push                eax
            //   8d45f4               | lea                 eax, [ebp - 0xc]
            //   64a300000000         | mov                 dword ptr fs:[0], eax
            //   83ec0c               | sub                 esp, 0xc
            //   33db                 | xor                 ebx, ebx

        $sequence_9 = { d3eb 2bf1 894de4 a840 740f 8b4508 c74018202b4200 }
            // n = 7, score = 100
            //   d3eb                 | shr                 ebx, cl
            //   2bf1                 | sub                 esi, ecx
            //   894de4               | mov                 dword ptr [ebp - 0x1c], ecx
            //   a840                 | test                al, 0x40
            //   740f                 | je                  0x11
            //   8b4508               | mov                 eax, dword ptr [ebp + 8]
            //   c74018202b4200       | mov                 dword ptr [eax + 0x18], 0x422b20

    condition:
        7 of them and filesize < 409600
}