rule win_shadowpad_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2020-08-17"
        version = "1"
        description = "autogenerated rule brought to you by yara-signator"
        tool = "yara-signator v0.4.0"
        tool_config = "callsandjumps;datarefs;binvalue"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.shadowpad"
        malpedia_rule_date = "20200817"
        malpedia_hash = "8c895fd01eccb47a6225bcb1a3ba53cbb98644c5"
        malpedia_version = "20200817"
        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 / approach 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 = { 69c93a2a4290 2bc8 6a06 81e96ffcb767 5e 33d2 }
            // n = 6, score = 200
            //   69c93a2a4290         | imul                ecx, ecx, 0x90422a3a
            //   2bc8                 | sub                 ecx, eax
            //   6a06                 | push                6
            //   81e96ffcb767         | sub                 ecx, 0x67b7fc6f
            //   5e                   | pop                 esi
            //   33d2                 | xor                 edx, edx

        $sequence_1 = { 8d4590 50 8d45c0 e8???????? 8d4de8 51 e8???????? }
            // n = 7, score = 200
            //   8d4590               | lea                 eax, [ebp - 0x70]
            //   50                   | push                eax
            //   8d45c0               | lea                 eax, [ebp - 0x40]
            //   e8????????           |                     
            //   8d4de8               | lea                 ecx, [ebp - 0x18]
            //   51                   | push                ecx
            //   e8????????           |                     

        $sequence_2 = { 8d45e4 e8???????? ff7008 8b7508 e8???????? }
            // n = 5, score = 200
            //   8d45e4               | lea                 eax, [ebp - 0x1c]
            //   e8????????           |                     
            //   ff7008               | push                dword ptr [eax + 8]
            //   8b7508               | mov                 esi, dword ptr [ebp + 8]
            //   e8????????           |                     

        $sequence_3 = { 53 56 33db 57 33d2 eb2d }
            // n = 6, score = 200
            //   53                   | push                ebx
            //   56                   | push                esi
            //   33db                 | xor                 ebx, ebx
            //   57                   | push                edi
            //   33d2                 | xor                 edx, edx
            //   eb2d                 | jmp                 0x2f

        $sequence_4 = { 8bc7 8bcb e8???????? 33d2 85ff }
            // n = 5, score = 200
            //   8bc7                 | mov                 eax, edi
            //   8bcb                 | mov                 ecx, ebx
            //   e8????????           |                     
            //   33d2                 | xor                 edx, edx
            //   85ff                 | test                edi, edi

        $sequence_5 = { 8b4508 6a00 6800100000 ff750c c745fc10000000 ff30 ff15???????? }
            // n = 7, score = 200
            //   8b4508               | mov                 eax, dword ptr [ebp + 8]
            //   6a00                 | push                0
            //   6800100000           | push                0x1000
            //   ff750c               | push                dword ptr [ebp + 0xc]
            //   c745fc10000000       | mov                 dword ptr [ebp - 4], 0x10
            //   ff30                 | push                dword ptr [eax]
            //   ff15????????         |                     

        $sequence_6 = { ff7510 ff750c 53 ff7508 e8???????? 33f6 3bc6 }
            // n = 7, score = 200
            //   ff7510               | push                dword ptr [ebp + 0x10]
            //   ff750c               | push                dword ptr [ebp + 0xc]
            //   53                   | push                ebx
            //   ff7508               | push                dword ptr [ebp + 8]
            //   e8????????           |                     
            //   33f6                 | xor                 esi, esi
            //   3bc6                 | cmp                 eax, esi

        $sequence_7 = { 8d8500ffffff 50 8b4508 8d7e01 e8???????? }
            // n = 5, score = 200
            //   8d8500ffffff         | lea                 eax, [ebp - 0x100]
            //   50                   | push                eax
            //   8b4508               | mov                 eax, dword ptr [ebp + 8]
            //   8d7e01               | lea                 edi, [esi + 1]
            //   e8????????           |                     

        $sequence_8 = { 33c0 8d4de8 e8???????? 8b7de0 8bc3 50 }
            // n = 6, score = 200
            //   33c0                 | xor                 eax, eax
            //   8d4de8               | lea                 ecx, [ebp - 0x18]
            //   e8????????           |                     
            //   8b7de0               | mov                 edi, dword ptr [ebp - 0x20]
            //   8bc3                 | mov                 eax, ebx
            //   50                   | push                eax

        $sequence_9 = { 8b06 8d0c18 0fb639 8d440701 3b450c }
            // n = 5, score = 200
            //   8b06                 | mov                 eax, dword ptr [esi]
            //   8d0c18               | lea                 ecx, [eax + ebx]
            //   0fb639               | movzx               edi, byte ptr [ecx]
            //   8d440701             | lea                 eax, [edi + eax + 1]
            //   3b450c               | cmp                 eax, dword ptr [ebp + 0xc]

    condition:
        7 of them and filesize < 188416
}