rule win_strongpity_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.strongpity"
        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 = { 56 8b7508 f7d1 85f6 }
            // n = 4, score = 500
            //   56                   | push                esi
            //   8b7508               | mov                 esi, dword ptr [ebp + 8]
            //   f7d1                 | not                 ecx
            //   85f6                 | test                esi, esi

        $sequence_1 = { a1???????? 33c4 89442450 8b03 55 8ba828010000 8b4d00 }
            // n = 7, score = 300
            //   a1????????           |                     
            //   33c4                 | xor                 eax, esp
            //   89442450             | mov                 dword ptr [esp + 0x50], eax
            //   8b03                 | mov                 eax, dword ptr [ebx]
            //   55                   | push                ebp
            //   8ba828010000         | mov                 ebp, dword ptr [eax + 0x128]
            //   8b4d00               | mov                 ecx, dword ptr [ebp]

        $sequence_2 = { e8???????? 8bd8 83c408 85db 0f85f5020000 8b442420 }
            // n = 6, score = 300
            //   e8????????           |                     
            //   8bd8                 | mov                 ebx, eax
            //   83c408               | add                 esp, 8
            //   85db                 | test                ebx, ebx
            //   0f85f5020000         | jne                 0x2fb
            //   8b442420             | mov                 eax, dword ptr [esp + 0x20]

        $sequence_3 = { 52 ff15???????? 83c404 837c241000 750a 837d0400 0f852e020000 }
            // n = 7, score = 300
            //   52                   | push                edx
            //   ff15????????         |                     
            //   83c404               | add                 esp, 4
            //   837c241000           | cmp                 dword ptr [esp + 0x10], 0
            //   750a                 | jne                 0xc
            //   837d0400             | cmp                 dword ptr [ebp + 4], 0
            //   0f852e020000         | jne                 0x234

        $sequence_4 = { 83c408 83f8ff 0f845d050000 ff442410 85f6 7fe0 }
            // n = 6, score = 300
            //   83c408               | add                 esp, 8
            //   83f8ff               | cmp                 eax, -1
            //   0f845d050000         | je                  0x563
            //   ff442410             | inc                 dword ptr [esp + 0x10]
            //   85f6                 | test                esi, esi
            //   7fe0                 | jg                  0xffffffe2

        $sequence_5 = { 57 50 8944246c 89442450 }
            // n = 4, score = 300
            //   57                   | push                edi
            //   50                   | push                eax
            //   8944246c             | mov                 dword ptr [esp + 0x6c], eax
            //   89442450             | mov                 dword ptr [esp + 0x50], eax

        $sequence_6 = { 397704 0f8493000000 eb6b 8b54241c 6a04 }
            // n = 5, score = 300
            //   397704               | cmp                 dword ptr [edi + 4], esi
            //   0f8493000000         | je                  0x99
            //   eb6b                 | jmp                 0x6d
            //   8b54241c             | mov                 edx, dword ptr [esp + 0x1c]
            //   6a04                 | push                4

        $sequence_7 = { c3 837c240800 56 57 8b7c240c 8db710050000 7534 }
            // n = 7, score = 300
            //   c3                   | ret                 
            //   837c240800           | cmp                 dword ptr [esp + 8], 0
            //   56                   | push                esi
            //   57                   | push                edi
            //   8b7c240c             | mov                 edi, dword ptr [esp + 0xc]
            //   8db710050000         | lea                 esi, [edi + 0x510]
            //   7534                 | jne                 0x36

        $sequence_8 = { 68???????? 50 e8???????? 83c40c 8d85e0fdffff ffb574f7ffff }
            // n = 6, score = 200
            //   68????????           |                     
            //   50                   | push                eax
            //   e8????????           |                     
            //   83c40c               | add                 esp, 0xc
            //   8d85e0fdffff         | lea                 eax, [ebp - 0x220]
            //   ffb574f7ffff         | push                dword ptr [ebp - 0x88c]

        $sequence_9 = { 899570f7ffff 3b5708 0f82c3feffff e9???????? }
            // n = 4, score = 200
            //   899570f7ffff         | mov                 dword ptr [ebp - 0x890], edx
            //   3b5708               | cmp                 edx, dword ptr [edi + 8]
            //   0f82c3feffff         | jb                  0xfffffec9
            //   e9????????           |                     

        $sequence_10 = { 6a5c 668945f2 58 56 }
            // n = 4, score = 200
            //   6a5c                 | push                0x5c
            //   668945f2             | mov                 word ptr [ebp - 0xe], ax
            //   58                   | pop                 eax
            //   56                   | push                esi

        $sequence_11 = { 83ee01 75f8 e8???????? c3 8b770c 8d4710 8bd6 }
            // n = 7, score = 200
            //   83ee01               | sub                 esi, 1
            //   75f8                 | jne                 0xfffffffa
            //   e8????????           |                     
            //   c3                   | ret                 
            //   8b770c               | mov                 esi, dword ptr [edi + 0xc]
            //   8d4710               | lea                 eax, [edi + 0x10]
            //   8bd6                 | mov                 edx, esi

        $sequence_12 = { e8???????? 83c410 ebe6 8b45e4 8b0c85a8bf4100 8b45e8 f644012880 }
            // n = 7, score = 200
            //   e8????????           |                     
            //   83c410               | add                 esp, 0x10
            //   ebe6                 | jmp                 0xffffffe8
            //   8b45e4               | mov                 eax, dword ptr [ebp - 0x1c]
            //   8b0c85a8bf4100       | mov                 ecx, dword ptr [eax*4 + 0x41bfa8]
            //   8b45e8               | mov                 eax, dword ptr [ebp - 0x18]
            //   f644012880           | test                byte ptr [ecx + eax + 0x28], 0x80

        $sequence_13 = { c746345c4b4100 57 ff7634 c6463c01 e8???????? 59 59 }
            // n = 7, score = 200
            //   c746345c4b4100       | mov                 dword ptr [esi + 0x34], 0x414b5c
            //   57                   | push                edi
            //   ff7634               | push                dword ptr [esi + 0x34]
            //   c6463c01             | mov                 byte ptr [esi + 0x3c], 1
            //   e8????????           |                     
            //   59                   | pop                 ecx
            //   59                   | pop                 ecx

        $sequence_14 = { 6a2f 59 668908 33c9 8b4608 66890c78 668b45d8 }
            // n = 7, score = 200
            //   6a2f                 | push                0x2f
            //   59                   | pop                 ecx
            //   668908               | mov                 word ptr [eax], cx
            //   33c9                 | xor                 ecx, ecx
            //   8b4608               | mov                 eax, dword ptr [esi + 8]
            //   66890c78             | mov                 word ptr [eax + edi*2], cx
            //   668b45d8             | mov                 ax, word ptr [ebp - 0x28]

    condition:
        7 of them and filesize < 999424
}