rule win_poldat_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.poldat"
        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 = { c645c320 8845fc c645c42f c645c563 c645c620 c645c770 c645c869 }
            // n = 7, score = 100
            //   c645c320             | mov                 byte ptr [ebp - 0x3d], 0x20
            //   8845fc               | mov                 byte ptr [ebp - 4], al
            //   c645c42f             | mov                 byte ptr [ebp - 0x3c], 0x2f
            //   c645c563             | mov                 byte ptr [ebp - 0x3b], 0x63
            //   c645c620             | mov                 byte ptr [ebp - 0x3a], 0x20
            //   c645c770             | mov                 byte ptr [ebp - 0x39], 0x70
            //   c645c869             | mov                 byte ptr [ebp - 0x38], 0x69

        $sequence_1 = { 896e08 8a11 8b4808 c1e208 03ca 8bfb }
            // n = 6, score = 100
            //   896e08               | mov                 dword ptr [esi + 8], ebp
            //   8a11                 | mov                 dl, byte ptr [ecx]
            //   8b4808               | mov                 ecx, dword ptr [eax + 8]
            //   c1e208               | shl                 edx, 8
            //   03ca                 | add                 ecx, edx
            //   8bfb                 | mov                 edi, ebx

        $sequence_2 = { 52 c7431824d84100 ff5324 83c408 8bc6 5f 5e }
            // n = 7, score = 100
            //   52                   | push                edx
            //   c7431824d84100       | mov                 dword ptr [ebx + 0x18], 0x41d824
            //   ff5324               | call                dword ptr [ebx + 0x24]
            //   83c408               | add                 esp, 8
            //   8bc6                 | mov                 eax, esi
            //   5f                   | pop                 edi
            //   5e                   | pop                 esi

        $sequence_3 = { 5e 5d 5b c3 55 8bec 81ec68040000 }
            // n = 7, score = 100
            //   5e                   | pop                 esi
            //   5d                   | pop                 ebp
            //   5b                   | pop                 ebx
            //   c3                   | ret                 
            //   55                   | push                ebp
            //   8bec                 | mov                 ebp, esp
            //   81ec68040000         | sub                 esp, 0x468

        $sequence_4 = { 730a 33db 8a9fd0984100 eb0d 8bcf }
            // n = 5, score = 100
            //   730a                 | jae                 0xc
            //   33db                 | xor                 ebx, ebx
            //   8a9fd0984100         | mov                 bl, byte ptr [edi + 0x4198d0]
            //   eb0d                 | jmp                 0xf
            //   8bcf                 | mov                 ecx, edi

        $sequence_5 = { 8b4c2414 42 49 894c2414 c70000000000 e9???????? 8b442424 }
            // n = 7, score = 100
            //   8b4c2414             | mov                 ecx, dword ptr [esp + 0x14]
            //   42                   | inc                 edx
            //   49                   | dec                 ecx
            //   894c2414             | mov                 dword ptr [esp + 0x14], ecx
            //   c70000000000         | mov                 dword ptr [eax], 0
            //   e9????????           |                     
            //   8b442424             | mov                 eax, dword ptr [esp + 0x24]

        $sequence_6 = { 0f84c4010000 6a04 8d45f8 68???????? }
            // n = 4, score = 100
            //   0f84c4010000         | je                  0x1ca
            //   6a04                 | push                4
            //   8d45f8               | lea                 eax, [ebp - 8]
            //   68????????           |                     

        $sequence_7 = { 894c2414 8b4c2428 8b0c8d68c34100 894c241c 8b4c242c 8b0c8d68c34100 }
            // n = 6, score = 100
            //   894c2414             | mov                 dword ptr [esp + 0x14], ecx
            //   8b4c2428             | mov                 ecx, dword ptr [esp + 0x28]
            //   8b0c8d68c34100       | mov                 ecx, dword ptr [ecx*4 + 0x41c368]
            //   894c241c             | mov                 dword ptr [esp + 0x1c], ecx
            //   8b4c242c             | mov                 ecx, dword ptr [esp + 0x2c]
            //   8b0c8d68c34100       | mov                 ecx, dword ptr [ecx*4 + 0x41c368]

        $sequence_8 = { 85d2 7421 c7030d000000 8b461c 8b5c2418 bd???????? }
            // n = 6, score = 100
            //   85d2                 | test                edx, edx
            //   7421                 | je                  0x23
            //   c7030d000000         | mov                 dword ptr [ebx], 0xd
            //   8b461c               | mov                 eax, dword ptr [esi + 0x1c]
            //   8b5c2418             | mov                 ebx, dword ptr [esp + 0x18]
            //   bd????????           |                     

        $sequence_9 = { 8d45f8 68???????? 50 e8???????? ff75f8 e8???????? }
            // n = 6, score = 100
            //   8d45f8               | lea                 eax, [ebp - 8]
            //   68????????           |                     
            //   50                   | push                eax
            //   e8????????           |                     
            //   ff75f8               | push                dword ptr [ebp - 8]
            //   e8????????           |                     

    condition:
        7 of them and filesize < 247808
}