rule win_shadowpad_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2020-12-22"
        version = "1"
        description = "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.shadowpad"
        malpedia_rule_date = "20201222"
        malpedia_hash = "30354d830a29f0fbd3714d93d94dea941d77a130"
        malpedia_version = "20201023"
        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 = { 897e04 8b4608 3bc7 740d 50 e8???????? 59 }
            // n = 7, score = 200
            //   897e04               | mov                 dword ptr [esi + 4], edi
            //   8b4608               | mov                 eax, dword ptr [esi + 8]
            //   3bc7                 | cmp                 eax, edi
            //   740d                 | je                  0xf
            //   50                   | push                eax
            //   e8????????           |                     
            //   59                   | pop                 ecx

        $sequence_1 = { 2b442410 8b4c2444 1b4c2414 781e }
            // n = 4, score = 200
            //   2b442410             | sub                 eax, dword ptr [esp + 0x10]
            //   8b4c2444             | mov                 ecx, dword ptr [esp + 0x44]
            //   1b4c2414             | sbb                 ecx, dword ptr [esp + 0x14]
            //   781e                 | js                  0x20

        $sequence_2 = { 85c0 7410 8d75e8 e8???????? 6a0d 5f }
            // n = 6, score = 200
            //   85c0                 | test                eax, eax
            //   7410                 | je                  0x12
            //   8d75e8               | lea                 esi, [ebp - 0x18]
            //   e8????????           |                     
            //   6a0d                 | push                0xd
            //   5f                   | pop                 edi

        $sequence_3 = { 88144b 8a0408 8b560c c0e804 }
            // n = 4, score = 200
            //   88144b               | mov                 byte ptr [ebx + ecx*2], dl
            //   8a0408               | mov                 al, byte ptr [eax + ecx]
            //   8b560c               | mov                 edx, dword ptr [esi + 0xc]
            //   c0e804               | shr                 al, 4

        $sequence_4 = { 57 50 ff742420 ff15???????? 8d742468 e8???????? }
            // n = 6, score = 200
            //   57                   | push                edi
            //   50                   | push                eax
            //   ff742420             | push                dword ptr [esp + 0x20]
            //   ff15????????         |                     
            //   8d742468             | lea                 esi, [esp + 0x68]
            //   e8????????           |                     

        $sequence_5 = { 8975dc 8975e4 8975e0 e8???????? }
            // n = 4, score = 200
            //   8975dc               | mov                 dword ptr [ebp - 0x24], esi
            //   8975e4               | mov                 dword ptr [ebp - 0x1c], esi
            //   8975e0               | mov                 dword ptr [ebp - 0x20], esi
            //   e8????????           |                     

        $sequence_6 = { 897c2410 897c2414 8d442440 50 8d44241c 50 }
            // n = 6, score = 200
            //   897c2410             | mov                 dword ptr [esp + 0x10], edi
            //   897c2414             | mov                 dword ptr [esp + 0x14], edi
            //   8d442440             | lea                 eax, [esp + 0x40]
            //   50                   | push                eax
            //   8d44241c             | lea                 eax, [esp + 0x1c]
            //   50                   | push                eax

        $sequence_7 = { 8d850cefffff 50 8d45c0 e8???????? 8d4de8 51 e8???????? }
            // n = 7, score = 200
            //   8d850cefffff         | lea                 eax, [ebp - 0x10f4]
            //   50                   | push                eax
            //   8d45c0               | lea                 eax, [ebp - 0x40]
            //   e8????????           |                     
            //   8d4de8               | lea                 ecx, [ebp - 0x18]
            //   51                   | push                ecx
            //   e8????????           |                     

        $sequence_8 = { a3???????? ff7508 ff35???????? ffd0 c9 c3 55 }
            // n = 7, score = 200
            //   a3????????           |                     
            //   ff7508               | push                dword ptr [ebp + 8]
            //   ff35????????         |                     
            //   ffd0                 | call                eax
            //   c9                   | leave               
            //   c3                   | ret                 
            //   55                   | push                ebp

        $sequence_9 = { 8d0481 8b0410 03c2 3b5d08 7410 ff45fc }
            // n = 6, score = 200
            //   8d0481               | lea                 eax, [ecx + eax*4]
            //   8b0410               | mov                 eax, dword ptr [eax + edx]
            //   03c2                 | add                 eax, edx
            //   3b5d08               | cmp                 ebx, dword ptr [ebp + 8]
            //   7410                 | je                  0x12
            //   ff45fc               | inc                 dword ptr [ebp - 4]

    condition:
        7 of them and filesize < 188416
}