rule win_makadocs_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2021-06-10"
        version = "1"
        description = "Detects win.makadocs."
        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.makadocs"
        malpedia_rule_date = "20210604"
        malpedia_hash = "be09d5d71e77373c0f538068be31a2ad4c69cfbd"
        malpedia_version = "20210616"
        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 5b c20400 6857000780 e8???????? 6857000780 }
            // n = 6, score = 100
            //   5f                   | pop                 edi
            //   5b                   | pop                 ebx
            //   c20400               | ret                 4
            //   6857000780           | push                0x80070057
            //   e8????????           |                     
            //   6857000780           | push                0x80070057

        $sequence_1 = { c744246837000000 8b08 8b542470 8b41f4 }
            // n = 4, score = 100
            //   c744246837000000     | mov                 dword ptr [esp + 0x68], 0x37
            //   8b08                 | mov                 ecx, dword ptr [eax]
            //   8b542470             | mov                 edx, dword ptr [esp + 0x70]
            //   8b41f4               | mov                 eax, dword ptr [ecx - 0xc]

        $sequence_2 = { e8???????? 8dbd54ffffff e8???????? 83c404 8d9d44ffffff c645fc0e e8???????? }
            // n = 7, score = 100
            //   e8????????           |                     
            //   8dbd54ffffff         | lea                 edi, dword ptr [ebp - 0xac]
            //   e8????????           |                     
            //   83c404               | add                 esp, 4
            //   8d9d44ffffff         | lea                 ebx, dword ptr [ebp - 0xbc]
            //   c645fc0e             | mov                 byte ptr [ebp - 4], 0xe
            //   e8????????           |                     

        $sequence_3 = { 8bf4 e8???????? 83c010 8906 c64424380d 8b742420 51 }
            // n = 7, score = 100
            //   8bf4                 | mov                 esi, esp
            //   e8????????           |                     
            //   83c010               | add                 eax, 0x10
            //   8906                 | mov                 dword ptr [esi], eax
            //   c64424380d           | mov                 byte ptr [esp + 0x38], 0xd
            //   8b742420             | mov                 esi, dword ptr [esp + 0x20]
            //   51                   | push                ecx

        $sequence_4 = { e8???????? 8b442410 6a43 51 83c0f0 89642424 8bfc }
            // n = 7, score = 100
            //   e8????????           |                     
            //   8b442410             | mov                 eax, dword ptr [esp + 0x10]
            //   6a43                 | push                0x43
            //   51                   | push                ecx
            //   83c0f0               | add                 eax, -0x10
            //   89642424             | mov                 dword ptr [esp + 0x24], esp
            //   8bfc                 | mov                 edi, esp

        $sequence_5 = { 50 6a00 6a03 89442438 ffd7 50 }
            // n = 6, score = 100
            //   50                   | push                eax
            //   6a00                 | push                0
            //   6a03                 | push                3
            //   89442438             | mov                 dword ptr [esp + 0x38], eax
            //   ffd7                 | call                edi
            //   50                   | push                eax

        $sequence_6 = { 53 33d2 57 33c0 f6c201 7405 }
            // n = 6, score = 100
            //   53                   | push                ebx
            //   33d2                 | xor                 edx, edx
            //   57                   | push                edi
            //   33c0                 | xor                 eax, eax
            //   f6c201               | test                dl, 1
            //   7405                 | je                  7

        $sequence_7 = { 0f9cc0 84c0 0f84ad000000 a1???????? 8b500c b9???????? ffd2 }
            // n = 7, score = 100
            //   0f9cc0               | setl                al
            //   84c0                 | test                al, al
            //   0f84ad000000         | je                  0xb3
            //   a1????????           |                     
            //   8b500c               | mov                 edx, dword ptr [eax + 0xc]
            //   b9????????           |                     
            //   ffd2                 | call                edx

        $sequence_8 = { 89642420 8bf4 e8???????? 83c010 8906 c644243008 e8???????? }
            // n = 7, score = 100
            //   89642420             | mov                 dword ptr [esp + 0x20], esp
            //   8bf4                 | mov                 esi, esp
            //   e8????????           |                     
            //   83c010               | add                 eax, 0x10
            //   8906                 | mov                 dword ptr [esi], eax
            //   c644243008           | mov                 byte ptr [esp + 0x30], 8
            //   e8????????           |                     

        $sequence_9 = { 898684000000 68???????? 8d7b02 8bc5 c644242007 e8???????? b81e000000 }
            // n = 7, score = 100
            //   898684000000         | mov                 dword ptr [esi + 0x84], eax
            //   68????????           |                     
            //   8d7b02               | lea                 edi, dword ptr [ebx + 2]
            //   8bc5                 | mov                 eax, ebp
            //   c644242007           | mov                 byte ptr [esp + 0x20], 7
            //   e8????????           |                     
            //   b81e000000           | mov                 eax, 0x1e

    condition:
        7 of them and filesize < 344064
}