rule win_mortalkombat_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2023-03-28"
        version = "1"
        description = "Detects win.mortalkombat."
        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.mortalkombat"
        malpedia_rule_date = "20230328"
        malpedia_hash = "9d2d75cef573c1c2d861f5197df8f563b05a305d"
        malpedia_version = "20230407"
        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 = { ff7508 6a17 681d010000 6a14 6a05 68???????? }
            // n = 6, score = 100
            //   ff7508               | push                dword ptr [ebp + 8]
            //   6a17                 | push                0x17
            //   681d010000           | push                0x11d
            //   6a14                 | push                0x14
            //   6a05                 | push                5
            //   68????????           |                     

        $sequence_1 = { 8945f0 50 6a00 e8???????? 0bc0 7502 c9 }
            // n = 7, score = 100
            //   8945f0               | mov                 dword ptr [ebp - 0x10], eax
            //   50                   | push                eax
            //   6a00                 | push                0
            //   e8????????           |                     
            //   0bc0                 | or                  eax, eax
            //   7502                 | jne                 4
            //   c9                   | leave               

        $sequence_2 = { 803d????????01 7519 68???????? 68???????? 68???????? 6802000080 e8???????? }
            // n = 7, score = 100
            //   803d????????01       |                     
            //   7519                 | jne                 0x1b
            //   68????????           |                     
            //   68????????           |                     
            //   68????????           |                     
            //   6802000080           | push                0x80000002
            //   e8????????           |                     

        $sequence_3 = { 55 8bec 6a00 ff35???????? ff7520 ff751c }
            // n = 6, score = 100
            //   55                   | push                ebp
            //   8bec                 | mov                 ebp, esp
            //   6a00                 | push                0
            //   ff35????????         |                     
            //   ff7520               | push                dword ptr [ebp + 0x20]
            //   ff751c               | push                dword ptr [ebp + 0x1c]

        $sequence_4 = { 6a02 6800000040 68???????? e8???????? a3???????? ff35???????? e8???????? }
            // n = 7, score = 100
            //   6a02                 | push                2
            //   6800000040           | push                0x40000000
            //   68????????           |                     
            //   e8????????           |                     
            //   a3????????           |                     
            //   ff35????????         |                     
            //   e8????????           |                     

        $sequence_5 = { a3???????? 6a0a ff35???????? 6a00 ff35???????? e8???????? 55 }
            // n = 7, score = 100
            //   a3????????           |                     
            //   6a0a                 | push                0xa
            //   ff35????????         |                     
            //   6a00                 | push                0
            //   ff35????????         |                     
            //   e8????????           |                     
            //   55                   | push                ebp

        $sequence_6 = { 85c0 0f8432030000 8d85e8feffff 50 68???????? e8???????? }
            // n = 6, score = 100
            //   85c0                 | test                eax, eax
            //   0f8432030000         | je                  0x338
            //   8d85e8feffff         | lea                 eax, [ebp - 0x118]
            //   50                   | push                eax
            //   68????????           |                     
            //   e8????????           |                     

        $sequence_7 = { e9???????? e8???????? 8d85e8feffff 50 68???????? e8???????? }
            // n = 6, score = 100
            //   e9????????           |                     
            //   e8????????           |                     
            //   8d85e8feffff         | lea                 eax, [ebp - 0x118]
            //   50                   | push                eax
            //   68????????           |                     
            //   e8????????           |                     

        $sequence_8 = { c6805044400000 8d85e8feffff 50 68???????? e8???????? 68???????? }
            // n = 6, score = 100
            //   c6805044400000       | mov                 byte ptr [eax + 0x404450], 0
            //   8d85e8feffff         | lea                 eax, [ebp - 0x118]
            //   50                   | push                eax
            //   68????????           |                     
            //   e8????????           |                     
            //   68????????           |                     

        $sequence_9 = { 8915???????? 8b4808 8b500c 0fc9 0fca 890d???????? 8915???????? }
            // n = 7, score = 100
            //   8915????????         |                     
            //   8b4808               | mov                 ecx, dword ptr [eax + 8]
            //   8b500c               | mov                 edx, dword ptr [eax + 0xc]
            //   0fc9                 | bswap               ecx
            //   0fca                 | bswap               edx
            //   890d????????         |                     
            //   8915????????         |                     

    condition:
        7 of them and filesize < 1224704
}