rule win_mikoponi_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2023-01-25"
        version = "1"
        description = "Detects win.mikoponi."
        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.mikoponi"
        malpedia_rule_date = "20230124"
        malpedia_hash = "2ee0eebba83dce3d019a90519f2f972c0fcf9686"
        malpedia_version = "20230125"
        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 = { 83c40c 6a00 c744245042000000 897c2454 ff15???????? }
            // n = 5, score = 100
            //   83c40c               | add                 esp, 0xc
            //   6a00                 | push                0
            //   c744245042000000     | mov                 dword ptr [esp + 0x50], 0x42
            //   897c2454             | mov                 dword ptr [esp + 0x54], edi
            //   ff15????????         |                     

        $sequence_1 = { e9???????? 8975e4 33c0 39b8f85a4200 0f8491000000 ff45e4 83c030 }
            // n = 7, score = 100
            //   e9????????           |                     
            //   8975e4               | mov                 dword ptr [ebp - 0x1c], esi
            //   33c0                 | xor                 eax, eax
            //   39b8f85a4200         | cmp                 dword ptr [eax + 0x425af8], edi
            //   0f8491000000         | je                  0x97
            //   ff45e4               | inc                 dword ptr [ebp - 0x1c]
            //   83c030               | add                 eax, 0x30

        $sequence_2 = { ffd7 8bf8 83ffff 753f 803d????????00 751d 56 }
            // n = 7, score = 100
            //   ffd7                 | call                edi
            //   8bf8                 | mov                 edi, eax
            //   83ffff               | cmp                 edi, -1
            //   753f                 | jne                 0x41
            //   803d????????00       |                     
            //   751d                 | jne                 0x1f
            //   56                   | push                esi

        $sequence_3 = { 8d842488060000 68???????? 50 e8???????? 83c41c 8b2d???????? 8d4c2414 }
            // n = 7, score = 100
            //   8d842488060000       | lea                 eax, [esp + 0x688]
            //   68????????           |                     
            //   50                   | push                eax
            //   e8????????           |                     
            //   83c41c               | add                 esp, 0x1c
            //   8b2d????????         |                     
            //   8d4c2414             | lea                 ecx, [esp + 0x14]

        $sequence_4 = { 803d????????00 0f84ea000000 33f6 c744241c00100000 89742420 }
            // n = 5, score = 100
            //   803d????????00       |                     
            //   0f84ea000000         | je                  0xf0
            //   33f6                 | xor                 esi, esi
            //   c744241c00100000     | mov                 dword ptr [esp + 0x1c], 0x1000
            //   89742420             | mov                 dword ptr [esp + 0x20], esi

        $sequence_5 = { 68???????? c744240800000000 e8???????? 68???????? e8???????? 68???????? e8???????? }
            // n = 7, score = 100
            //   68????????           |                     
            //   c744240800000000     | mov                 dword ptr [esp + 8], 0
            //   e8????????           |                     
            //   68????????           |                     
            //   e8????????           |                     
            //   68????????           |                     
            //   e8????????           |                     

        $sequence_6 = { 51 68???????? e8???????? 83c40c 381d???????? 752d }
            // n = 6, score = 100
            //   51                   | push                ecx
            //   68????????           |                     
            //   e8????????           |                     
            //   83c40c               | add                 esp, 0xc
            //   381d????????         |                     
            //   752d                 | jne                 0x2f

        $sequence_7 = { 53 e8???????? 6a00 8d4c2424 51 50 }
            // n = 6, score = 100
            //   53                   | push                ebx
            //   e8????????           |                     
            //   6a00                 | push                0
            //   8d4c2424             | lea                 ecx, [esp + 0x24]
            //   51                   | push                ecx
            //   50                   | push                eax

    condition:
        7 of them and filesize < 330752
}