rule win_mortalkombat_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-05-04"
        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 = "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 = { e8???????? 83f8ff 7452 8945ec 6a00 6a00 6a00 }
            // n = 7, score = 100
            //   e8????????           |                     
            //   83f8ff               | cmp                 eax, -1
            //   7452                 | je                  0x54
            //   8945ec               | mov                 dword ptr [ebp - 0x14], eax
            //   6a00                 | push                0
            //   6a00                 | push                0
            //   6a00                 | push                0

        $sequence_1 = { 6a10 68???????? 6a10 68???????? e8???????? 6a10 }
            // n = 6, score = 100
            //   6a10                 | push                0x10
            //   68????????           |                     
            //   6a10                 | push                0x10
            //   68????????           |                     
            //   e8????????           |                     
            //   6a10                 | push                0x10

        $sequence_2 = { e8???????? 8bd8 57 e8???????? 03f8 47 }
            // n = 6, score = 100
            //   e8????????           |                     
            //   8bd8                 | mov                 ebx, eax
            //   57                   | push                edi
            //   e8????????           |                     
            //   03f8                 | add                 edi, eax
            //   47                   | inc                 edi

        $sequence_3 = { 83c4e8 b910000000 bf???????? 51 57 0f31 }
            // n = 6, score = 100
            //   83c4e8               | add                 esp, -0x18
            //   b910000000           | mov                 ecx, 0x10
            //   bf????????           |                     
            //   51                   | push                ecx
            //   57                   | push                edi
            //   0f31                 | rdtsc               

        $sequence_4 = { e8???????? e8???????? c605????????00 6a01 e8???????? }
            // n = 5, score = 100
            //   e8????????           |                     
            //   e8????????           |                     
            //   c605????????00       |                     
            //   6a01                 | push                1
            //   e8????????           |                     

        $sequence_5 = { 6a00 ff35???????? ff7520 ff751c ff7518 ff7514 ff7510 }
            // n = 7, score = 100
            //   6a00                 | push                0
            //   ff35????????         |                     
            //   ff7520               | push                dword ptr [ebp + 0x20]
            //   ff751c               | push                dword ptr [ebp + 0x1c]
            //   ff7518               | push                dword ptr [ebp + 0x18]
            //   ff7514               | push                dword ptr [ebp + 0x14]
            //   ff7510               | push                dword ptr [ebp + 0x10]

        $sequence_6 = { c3 8945f4 ff75f0 6a00 e8???????? 0bc0 7502 }
            // n = 7, score = 100
            //   c3                   | ret                 
            //   8945f4               | mov                 dword ptr [ebp - 0xc], eax
            //   ff75f0               | push                dword ptr [ebp - 0x10]
            //   6a00                 | push                0
            //   e8????????           |                     
            //   0bc0                 | or                  eax, eax
            //   7502                 | jne                 4

        $sequence_7 = { 68???????? 6a00 e8???????? eb13 }
            // n = 4, score = 100
            //   68????????           |                     
            //   6a00                 | push                0
            //   e8????????           |                     
            //   eb13                 | jmp                 0x15

        $sequence_8 = { e8???????? 6a00 ff75fc e8???????? c9 c21000 }
            // n = 6, score = 100
            //   e8????????           |                     
            //   6a00                 | push                0
            //   ff75fc               | push                dword ptr [ebp - 4]
            //   e8????????           |                     
            //   c9                   | leave               
            //   c21000               | ret                 0x10

        $sequence_9 = { ff75f8 e8???????? 6a00 ff75fc e8???????? c9 c21000 }
            // n = 7, score = 100
            //   ff75f8               | push                dword ptr [ebp - 8]
            //   e8????????           |                     
            //   6a00                 | push                0
            //   ff75fc               | push                dword ptr [ebp - 4]
            //   e8????????           |                     
            //   c9                   | leave               
            //   c21000               | ret                 0x10

    condition:
        7 of them and filesize < 1224704
}