rule win_mikoponi_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2023-07-11"
        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 = "20230705"
        malpedia_hash = "42d0574f4405bd7d2b154d321d345acb18834a41"
        malpedia_version = "20230715"
        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 = { 5f 83c408 c3 8b17 52 e8???????? }
            // n = 6, score = 100
            //   5f                   | pop                 edi
            //   83c408               | add                 esp, 8
            //   c3                   | ret                 
            //   8b17                 | mov                 edx, dword ptr [edi]
            //   52                   | push                edx
            //   e8????????           |                     

        $sequence_1 = { 83c702 57 b9???????? e8???????? 8d3c47 }
            // n = 5, score = 100
            //   83c702               | add                 edi, 2
            //   57                   | push                edi
            //   b9????????           |                     
            //   e8????????           |                     
            //   8d3c47               | lea                 edi, [edi + eax*2]

        $sequence_2 = { e8???????? 83c404 5e 5b 5d 33c0 5f }
            // n = 7, score = 100
            //   e8????????           |                     
            //   83c404               | add                 esp, 4
            //   5e                   | pop                 esi
            //   5b                   | pop                 ebx
            //   5d                   | pop                 ebp
            //   33c0                 | xor                 eax, eax
            //   5f                   | pop                 edi

        $sequence_3 = { e8???????? 59 8945e4 8b7508 c7465cf81d4200 33ff 47 }
            // n = 7, score = 100
            //   e8????????           |                     
            //   59                   | pop                 ecx
            //   8945e4               | mov                 dword ptr [ebp - 0x1c], eax
            //   8b7508               | mov                 esi, dword ptr [ebp + 8]
            //   c7465cf81d4200       | mov                 dword ptr [esi + 0x5c], 0x421df8
            //   33ff                 | xor                 edi, edi
            //   47                   | inc                 edi

        $sequence_4 = { 898424f0010000 898424f4010000 898424f8010000 898424fc010000 89842400020000 }
            // n = 5, score = 100
            //   898424f0010000       | mov                 dword ptr [esp + 0x1f0], eax
            //   898424f4010000       | mov                 dword ptr [esp + 0x1f4], eax
            //   898424f8010000       | mov                 dword ptr [esp + 0x1f8], eax
            //   898424fc010000       | mov                 dword ptr [esp + 0x1fc], eax
            //   89842400020000       | mov                 dword ptr [esp + 0x200], eax

        $sequence_5 = { 7446 81fe03010000 7446 81fe0d0000c0 0f840f010000 803d????????00 0f8502010000 }
            // n = 7, score = 100
            //   7446                 | je                  0x48
            //   81fe03010000         | cmp                 esi, 0x103
            //   7446                 | je                  0x48
            //   81fe0d0000c0         | cmp                 esi, 0xc000000d
            //   0f840f010000         | je                  0x115
            //   803d????????00       |                     
            //   0f8502010000         | jne                 0x108

        $sequence_6 = { e8???????? 0fb7c0 6685c0 7408 6683f870 7502 }
            // n = 6, score = 100
            //   e8????????           |                     
            //   0fb7c0               | movzx               eax, ax
            //   6685c0               | test                ax, ax
            //   7408                 | je                  0xa
            //   6683f870             | cmp                 ax, 0x70
            //   7502                 | jne                 4

        $sequence_7 = { ff15???????? 85c0 7535 68???????? e8???????? 83c404 }
            // n = 6, score = 100
            //   ff15????????         |                     
            //   85c0                 | test                eax, eax
            //   7535                 | jne                 0x37
            //   68????????           |                     
            //   e8????????           |                     
            //   83c404               | add                 esp, 4

    condition:
        7 of them and filesize < 330752
}