rule win_snake_disk_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-09-17"
        version = "1"
        description = "Detects win.snake_disk."
        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.snake_disk"
        malpedia_rule_date = "20260916"
        malpedia_hash = "53a643781c18e08f4a50949af60172d837a0b6f6"
        malpedia_version = "20260917"
        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 = { e8???????? 8b06 8b7050 8bce ff15???????? }
            // n = 5, score = 100
            //   e8????????           |                     
            //   8b06                 | mov                 eax, dword ptr [esi]
            //   8b7050               | mov                 esi, dword ptr [eax + 0x50]
            //   8bce                 | mov                 ecx, esi
            //   ff15????????         |                     

        $sequence_1 = { e8???????? 8b06 8b7028 e8???????? }
            // n = 4, score = 100
            //   e8????????           |                     
            //   8b06                 | mov                 eax, dword ptr [esi]
            //   8b7028               | mov                 esi, dword ptr [eax + 0x28]
            //   e8????????           |                     

        $sequence_2 = { e8???????? 8b06 8b8094000000 85c0 }
            // n = 4, score = 100
            //   e8????????           |                     
            //   8b06                 | mov                 eax, dword ptr [esi]
            //   8b8094000000         | mov                 eax, dword ptr [eax + 0x94]
            //   85c0                 | test                eax, eax

        $sequence_3 = { e8???????? 8b06 8b75cc 8b4ddc }
            // n = 4, score = 100
            //   e8????????           |                     
            //   8b06                 | mov                 eax, dword ptr [esi]
            //   8b75cc               | mov                 esi, dword ptr [ebp - 0x34]
            //   8b4ddc               | mov                 ecx, dword ptr [ebp - 0x24]

        $sequence_4 = { e8???????? 8b06 8b4e04 8945f8 }
            // n = 4, score = 100
            //   e8????????           |                     
            //   8b06                 | mov                 eax, dword ptr [esi]
            //   8b4e04               | mov                 ecx, dword ptr [esi + 4]
            //   8945f8               | mov                 dword ptr [ebp - 8], eax

        $sequence_5 = { e8???????? 8b06 8900 8b06 894004 8b45a4 }
            // n = 6, score = 100
            //   e8????????           |                     
            //   8b06                 | mov                 eax, dword ptr [esi]
            //   8900                 | mov                 dword ptr [eax], eax
            //   8b06                 | mov                 eax, dword ptr [esi]
            //   894004               | mov                 dword ptr [eax + 4], eax
            //   8b45a4               | mov                 eax, dword ptr [ebp - 0x5c]

        $sequence_6 = { e8???????? 8b06 895dd0 895dd4 }
            // n = 4, score = 100
            //   e8????????           |                     
            //   8b06                 | mov                 eax, dword ptr [esi]
            //   895dd0               | mov                 dword ptr [ebp - 0x30], ebx
            //   895dd4               | mov                 dword ptr [ebp - 0x2c], ebx

        $sequence_7 = { e8???????? 8b06 8b7058 33c0 }
            // n = 4, score = 100
            //   e8????????           |                     
            //   8b06                 | mov                 eax, dword ptr [esi]
            //   8b7058               | mov                 esi, dword ptr [eax + 0x58]
            //   33c0                 | xor                 eax, eax

    condition:
        7 of them and filesize < 28734464
}