rule win_taleret_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-05-04"
        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 = "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 = { c21000 6a00 ff15???????? a1???????? 85c0 }
            // n = 5, score = 100
            //   c21000               | ret                 0x10
            //   6a00                 | push                0
            //   ff15????????         |                     
            //   a1????????           |                     
            //   85c0                 | test                eax, eax

        $sequence_1 = { 3bc7 0f8408010000 a1???????? 68007f0000 }
            // n = 4, score = 100
            //   3bc7                 | cmp                 eax, edi
            //   0f8408010000         | je                  0x10e
            //   a1????????           |                     
            //   68007f0000           | push                0x7f00

        $sequence_2 = { 51 8b4c2424 e8???????? 8d45fd }
            // n = 4, score = 100
            //   51                   | push                ecx
            //   8b4c2424             | mov                 ecx, dword ptr [esp + 0x24]
            //   e8????????           |                     
            //   8d45fd               | lea                 eax, [ebp - 3]

        $sequence_3 = { 8b1d???????? 83f86f 750f 56 ffd3 8b4c2414 51 }
            // n = 7, score = 100
            //   8b1d????????         |                     
            //   83f86f               | cmp                 eax, 0x6f
            //   750f                 | jne                 0x11
            //   56                   | push                esi
            //   ffd3                 | call                ebx
            //   8b4c2414             | mov                 ecx, dword ptr [esp + 0x14]
            //   51                   | push                ecx

        $sequence_4 = { 5d 33c0 5b 81c478040000 c3 8b4c2438 8b442434 }
            // n = 7, score = 100
            //   5d                   | pop                 ebp
            //   33c0                 | xor                 eax, eax
            //   5b                   | pop                 ebx
            //   81c478040000         | add                 esp, 0x478
            //   c3                   | ret                 
            //   8b4c2438             | mov                 ecx, dword ptr [esp + 0x38]
            //   8b442434             | mov                 eax, dword ptr [esp + 0x34]

        $sequence_5 = { 81c478040000 c3 8b542424 8b3d???????? 8d4c2434 }
            // n = 5, score = 100
            //   81c478040000         | add                 esp, 0x478
            //   c3                   | ret                 
            //   8b542424             | mov                 edx, dword ptr [esp + 0x24]
            //   8b3d????????         |                     
            //   8d4c2434             | lea                 ecx, [esp + 0x34]

        $sequence_6 = { 52 68???????? 6a00 6a00 ff15???????? 83c41c 8bf0 }
            // n = 7, score = 100
            //   52                   | push                edx
            //   68????????           |                     
            //   6a00                 | push                0
            //   6a00                 | push                0
            //   ff15????????         |                     
            //   83c41c               | add                 esp, 0x1c
            //   8bf0                 | mov                 esi, eax

        $sequence_7 = { 0f84cc050000 8b4c2448 8b35???????? 8d442414 }
            // n = 4, score = 100
            //   0f84cc050000         | je                  0x5d2
            //   8b4c2448             | mov                 ecx, dword ptr [esp + 0x48]
            //   8b35????????         |                     
            //   8d442414             | lea                 eax, [esp + 0x14]

        $sequence_8 = { 8be8 83cfff 3bef 0f854b010000 68???????? ff15???????? 3bc6 }
            // n = 7, score = 100
            //   8be8                 | mov                 ebp, eax
            //   83cfff               | or                  edi, 0xffffffff
            //   3bef                 | cmp                 ebp, edi
            //   0f854b010000         | jne                 0x151
            //   68????????           |                     
            //   ff15????????         |                     
            //   3bc6                 | cmp                 eax, esi

        $sequence_9 = { c744243000000000 895c2434 896c2410 0f8eb5010000 8d4103 c1e802 89442418 }
            // n = 7, score = 100
            //   c744243000000000     | mov                 dword ptr [esp + 0x30], 0
            //   895c2434             | mov                 dword ptr [esp + 0x34], ebx
            //   896c2410             | mov                 dword ptr [esp + 0x10], ebp
            //   0f8eb5010000         | jle                 0x1bb
            //   8d4103               | lea                 eax, [ecx + 3]
            //   c1e802               | shr                 eax, 2
            //   89442418             | mov                 dword ptr [esp + 0x18], eax

    condition:
        7 of them and filesize < 73728
}