rule win_taleret_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2022-11-21"
        version = "1"
        description = "Detects win.taleret."
        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.taleret"
        malpedia_rule_date = "20221118"
        malpedia_hash = "e0702e2e6d1d00da65c8a29a4ebacd0a4c59e1af"
        malpedia_version = "20221125"
        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 = { 56 896c242c 896c2428 c744243004000000 }
            // n = 4, score = 100
            //   56                   | push                esi
            //   896c242c             | mov                 dword ptr [esp + 0x2c], ebp
            //   896c2428             | mov                 dword ptr [esp + 0x28], ebp
            //   c744243004000000     | mov                 dword ptr [esp + 0x30], 4

        $sequence_1 = { 52 6801000080 ff15???????? 85c0 741c }
            // n = 5, score = 100
            //   52                   | push                edx
            //   6801000080           | push                0x80000001
            //   ff15????????         |                     
            //   85c0                 | test                eax, eax
            //   741c                 | je                  0x1e

        $sequence_2 = { 85c0 a3???????? 744b ff15???????? 6a01 }
            // n = 5, score = 100
            //   85c0                 | test                eax, eax
            //   a3????????           |                     
            //   744b                 | je                  0x4d
            //   ff15????????         |                     
            //   6a01                 | push                1

        $sequence_3 = { 8bca 83e103 f3a4 8b542418 b910000000 }
            // n = 5, score = 100
            //   8bca                 | mov                 ecx, edx
            //   83e103               | and                 ecx, 3
            //   f3a4                 | rep movsb           byte ptr es:[edi], byte ptr [esi]
            //   8b542418             | mov                 edx, dword ptr [esp + 0x18]
            //   b910000000           | mov                 ecx, 0x10

        $sequence_4 = { 85c0 7522 8b442414 8b4c2418 }
            // n = 4, score = 100
            //   85c0                 | test                eax, eax
            //   7522                 | jne                 0x24
            //   8b442414             | mov                 eax, dword ptr [esp + 0x14]
            //   8b4c2418             | mov                 ecx, dword ptr [esp + 0x18]

        $sequence_5 = { 83c8ff 83c41c c3 8b442400 50 ff15???????? }
            // n = 6, score = 100
            //   83c8ff               | or                  eax, 0xffffffff
            //   83c41c               | add                 esp, 0x1c
            //   c3                   | ret                 
            //   8b442400             | mov                 eax, dword ptr [esp]
            //   50                   | push                eax
            //   ff15????????         |                     

        $sequence_6 = { 0418 eb15 3c2e 7507 c644240852 eb0e }
            // n = 6, score = 100
            //   0418                 | add                 al, 0x18
            //   eb15                 | jmp                 0x17
            //   3c2e                 | cmp                 al, 0x2e
            //   7507                 | jne                 9
            //   c644240852           | mov                 byte ptr [esp + 8], 0x52
            //   eb0e                 | jmp                 0x10

        $sequence_7 = { 3bfe 897c2410 0f8471020000 68???????? 57 ff15???????? }
            // n = 6, score = 100
            //   3bfe                 | cmp                 edi, esi
            //   897c2410             | mov                 dword ptr [esp + 0x10], edi
            //   0f8471020000         | je                  0x277
            //   68????????           |                     
            //   57                   | push                edi
            //   ff15????????         |                     

        $sequence_8 = { 8d442420 8d8c247c010000 50 683f000f00 6a00 }
            // n = 5, score = 100
            //   8d442420             | lea                 eax, [esp + 0x20]
            //   8d8c247c010000       | lea                 ecx, [esp + 0x17c]
            //   50                   | push                eax
            //   683f000f00           | push                0xf003f
            //   6a00                 | push                0

        $sequence_9 = { 72e5 8b5c2418 8d4c2438 895c241c e8???????? c78424f001000000000000 }
            // n = 6, score = 100
            //   72e5                 | jb                  0xffffffe7
            //   8b5c2418             | mov                 ebx, dword ptr [esp + 0x18]
            //   8d4c2438             | lea                 ecx, [esp + 0x38]
            //   895c241c             | mov                 dword ptr [esp + 0x1c], ebx
            //   e8????????           |                     
            //   c78424f001000000000000     | mov    dword ptr [esp + 0x1f0], 0

    condition:
        7 of them and filesize < 73728
}