rule win_shadowpad_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2020-10-14"
        version = "1"
        description = "autogenerated rule brought to you by yara-signator"
        tool = "yara-signator v0.5.0"
        tool_config = "callsandjumps;datarefs;binvalue"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.shadowpad"
        malpedia_rule_date = "20201014"
        malpedia_hash = "a7e3bd57eaf12bf3ea29a863c041091ba3af9ac9"
        malpedia_version = "20201014"
        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 = { 8d442448 e8???????? 8d442458 50 e8???????? }
            // n = 5, score = 200
            //   8d442448             | lea                 eax, [esp + 0x48]
            //   e8????????           |                     
            //   8d442458             | lea                 eax, [esp + 0x58]
            //   50                   | push                eax
            //   e8????????           |                     

        $sequence_1 = { e8???????? 6a0d 33d2 59 f7f1 }
            // n = 5, score = 200
            //   e8????????           |                     
            //   6a0d                 | push                0xd
            //   33d2                 | xor                 edx, edx
            //   59                   | pop                 ecx
            //   f7f1                 | div                 ecx

        $sequence_2 = { 50 57 ff7508 6a00 68e9fd0000 }
            // n = 5, score = 200
            //   50                   | push                eax
            //   57                   | push                edi
            //   ff7508               | push                dword ptr [ebp + 8]
            //   6a00                 | push                0
            //   68e9fd0000           | push                0xfde9

        $sequence_3 = { 8b4508 33ff 47 885d0c }
            // n = 4, score = 200
            //   8b4508               | mov                 eax, dword ptr [ebp + 8]
            //   33ff                 | xor                 edi, edi
            //   47                   | inc                 edi
            //   885d0c               | mov                 byte ptr [ebp + 0xc], bl

        $sequence_4 = { eb28 8b55f4 69d20ff7b17d bb1a68d7bf 2bda }
            // n = 5, score = 200
            //   eb28                 | jmp                 0x2a
            //   8b55f4               | mov                 edx, dword ptr [ebp - 0xc]
            //   69d20ff7b17d         | imul                edx, edx, 0x7db1f70f
            //   bb1a68d7bf           | mov                 ebx, 0xbfd7681a
            //   2bda                 | sub                 ebx, edx

        $sequence_5 = { c745bc20000000 ff15???????? 85c0 7507 53 8d4590 }
            // n = 6, score = 200
            //   c745bc20000000       | mov                 dword ptr [ebp - 0x44], 0x20
            //   ff15????????         |                     
            //   85c0                 | test                eax, eax
            //   7507                 | jne                 9
            //   53                   | push                ebx
            //   8d4590               | lea                 eax, [ebp - 0x70]

        $sequence_6 = { 663919 7421 0fb639 c1ce08 83cf20 03f7 83c102 }
            // n = 7, score = 200
            //   663919               | cmp                 word ptr [ecx], bx
            //   7421                 | je                  0x23
            //   0fb639               | movzx               edi, byte ptr [ecx]
            //   c1ce08               | ror                 esi, 8
            //   83cf20               | or                  edi, 0x20
            //   03f7                 | add                 esi, edi
            //   83c102               | add                 ecx, 2

        $sequence_7 = { c1cb08 03d8 81f3a3d9357c 41 8a01 }
            // n = 5, score = 200
            //   c1cb08               | ror                 ebx, 8
            //   03d8                 | add                 ebx, eax
            //   81f3a3d9357c         | xor                 ebx, 0x7c35d9a3
            //   41                   | inc                 ecx
            //   8a01                 | mov                 al, byte ptr [ecx]

        $sequence_8 = { 3bd9 7cf5 3bd9 7c07 b803010000 }
            // n = 5, score = 200
            //   3bd9                 | cmp                 ebx, ecx
            //   7cf5                 | jl                  0xfffffff7
            //   3bd9                 | cmp                 ebx, ecx
            //   7c07                 | jl                  9
            //   b803010000           | mov                 eax, 0x103

        $sequence_9 = { 57 668945f6 ffd3 57 668945f8 }
            // n = 5, score = 200
            //   57                   | push                edi
            //   668945f6             | mov                 word ptr [ebp - 0xa], ax
            //   ffd3                 | call                ebx
            //   57                   | push                edi
            //   668945f8             | mov                 word ptr [ebp - 8], ax

    condition:
        7 of them and filesize < 188416
}