rule win_strongpity_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2021-06-10"
        version = "1"
        description = "Detects win.strongpity."
        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.strongpity"
        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 = { 8bec 56 8b7508 f7d1 85f6 }
            // n = 5, score = 300
            //   8bec                 | mov                 ebp, esp
            //   56                   | push                esi
            //   8b7508               | mov                 esi, dword ptr [ebp + 8]
            //   f7d1                 | not                 ecx
            //   85f6                 | test                esi, esi

        $sequence_1 = { c745f800100000 85c0 750b 56 e8???????? 59 }
            // n = 6, score = 200
            //   c745f800100000       | mov                 dword ptr [ebp - 8], 0x1000
            //   85c0                 | test                eax, eax
            //   750b                 | jne                 0xd
            //   56                   | push                esi
            //   e8????????           |                     
            //   59                   | pop                 ecx

        $sequence_2 = { 83cfff 897de4 8365fc00 8b049da8bf4100 }
            // n = 4, score = 200
            //   83cfff               | or                  edi, 0xffffffff
            //   897de4               | mov                 dword ptr [ebp - 0x1c], edi
            //   8365fc00             | and                 dword ptr [ebp - 4], 0
            //   8b049da8bf4100       | mov                 eax, dword ptr [ebx*4 + 0x41bfa8]

        $sequence_3 = { 8d857cfbffff c60000 40 83eb01 75f7 85f6 }
            // n = 6, score = 200
            //   8d857cfbffff         | lea                 eax, dword ptr [ebp - 0x484]
            //   c60000               | mov                 byte ptr [eax], 0
            //   40                   | inc                 eax
            //   83eb01               | sub                 ebx, 1
            //   75f7                 | jne                 0xfffffff9
            //   85f6                 | test                esi, esi

        $sequence_4 = { 0f8404020000 85c0 0f84fc010000 56 6a00 }
            // n = 5, score = 200
            //   0f8404020000         | je                  0x20a
            //   85c0                 | test                eax, eax
            //   0f84fc010000         | je                  0x202
            //   56                   | push                esi
            //   6a00                 | push                0

        $sequence_5 = { 7411 68000000a0 6aff ff7718 56 ff15???????? 837f1c00 }
            // n = 7, score = 200
            //   7411                 | je                  0x13
            //   68000000a0           | push                0xa0000000
            //   6aff                 | push                -1
            //   ff7718               | push                dword ptr [edi + 0x18]
            //   56                   | push                esi
            //   ff15????????         |                     
            //   837f1c00             | cmp                 dword ptr [edi + 0x1c], 0

        $sequence_6 = { 33c0 e8???????? c21000 e8???????? 6a5c }
            // n = 5, score = 200
            //   33c0                 | xor                 eax, eax
            //   e8????????           |                     
            //   c21000               | ret                 0x10
            //   e8????????           |                     
            //   6a5c                 | push                0x5c

        $sequence_7 = { 6a01 0f45d0 68???????? 668955ec ff15???????? 8b5de4 8bf0 }
            // n = 7, score = 200
            //   6a01                 | push                1
            //   0f45d0               | cmovne              edx, eax
            //   68????????           |                     
            //   668955ec             | mov                 word ptr [ebp - 0x14], dx
            //   ff15????????         |                     
            //   8b5de4               | mov                 ebx, dword ptr [ebp - 0x1c]
            //   8bf0                 | mov                 esi, eax

        $sequence_8 = { 8b11 5f 5e 89905c040000 }
            // n = 4, score = 100
            //   8b11                 | mov                 edx, dword ptr [ecx]
            //   5f                   | pop                 edi
            //   5e                   | pop                 esi
            //   89905c040000         | mov                 dword ptr [eax + 0x45c], edx

        $sequence_9 = { 8b13 8d86f4050000 898214010000 85ff }
            // n = 4, score = 100
            //   8b13                 | mov                 edx, dword ptr [ebx]
            //   8d86f4050000         | lea                 eax, dword ptr [esi + 0x5f4]
            //   898214010000         | mov                 dword ptr [edx + 0x114], eax
            //   85ff                 | test                edi, edi

        $sequence_10 = { 8b11 8bb228010000 83c40c 85f6 7432 }
            // n = 5, score = 100
            //   8b11                 | mov                 edx, dword ptr [ecx]
            //   8bb228010000         | mov                 esi, dword ptr [edx + 0x128]
            //   83c40c               | add                 esp, 0xc
            //   85f6                 | test                esi, esi
            //   7432                 | je                  0x34

        $sequence_11 = { 8b13 8b827c870000 55 8baa80870000 }
            // n = 4, score = 100
            //   8b13                 | mov                 edx, dword ptr [ebx]
            //   8b827c870000         | mov                 eax, dword ptr [edx + 0x877c]
            //   55                   | push                ebp
            //   8baa80870000         | mov                 ebp, dword ptr [edx + 0x8780]

        $sequence_12 = { 8b11 8b442420 52 50 }
            // n = 4, score = 100
            //   8b11                 | mov                 edx, dword ptr [ecx]
            //   8b442420             | mov                 eax, dword ptr [esp + 0x20]
            //   52                   | push                edx
            //   50                   | push                eax

        $sequence_13 = { 8b11 8b02 8906 eb54 }
            // n = 4, score = 100
            //   8b11                 | mov                 edx, dword ptr [ecx]
            //   8b02                 | mov                 eax, dword ptr [edx]
            //   8906                 | mov                 dword ptr [esi], eax
            //   eb54                 | jmp                 0x56

        $sequence_14 = { 8b13 8b8228010000 833800 7417 }
            // n = 4, score = 100
            //   8b13                 | mov                 edx, dword ptr [ebx]
            //   8b8228010000         | mov                 eax, dword ptr [edx + 0x128]
            //   833800               | cmp                 dword ptr [eax], 0
            //   7417                 | je                  0x19

    condition:
        7 of them and filesize < 974848
}