rule win_shareip_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2022-04-08"
        version = "1"
        description = "Detects win.shareip."
        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.shareip"
        malpedia_rule_date = "20220405"
        malpedia_hash = "ecd38294bd47d5589be5cd5490dc8bb4804afc2a"
        malpedia_version = "20220411"
        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 = { e9???????? 8b542408 8d82e0faffff 8b8adcfaffff 33c8 e8???????? }
            // n = 6, score = 100
            //   e9????????           |                     
            //   8b542408             | mov                 edx, dword ptr [esp + 8]
            //   8d82e0faffff         | lea                 eax, dword ptr [edx - 0x520]
            //   8b8adcfaffff         | mov                 ecx, dword ptr [edx - 0x524]
            //   33c8                 | xor                 ecx, eax
            //   e8????????           |                     

        $sequence_1 = { 885eec 83c61c 8d46e8 3bc7 75d9 8b74242c 56 }
            // n = 7, score = 100
            //   885eec               | mov                 byte ptr [esi - 0x14], bl
            //   83c61c               | add                 esi, 0x1c
            //   8d46e8               | lea                 eax, dword ptr [esi - 0x18]
            //   3bc7                 | cmp                 eax, edi
            //   75d9                 | jne                 0xffffffdb
            //   8b74242c             | mov                 esi, dword ptr [esp + 0x2c]
            //   56                   | push                esi

        $sequence_2 = { 83c004 837c242010 7202 8b00 51 52 50 }
            // n = 7, score = 100
            //   83c004               | add                 eax, 4
            //   837c242010           | cmp                 dword ptr [esp + 0x20], 0x10
            //   7202                 | jb                  4
            //   8b00                 | mov                 eax, dword ptr [eax]
            //   51                   | push                ecx
            //   52                   | push                edx
            //   50                   | push                eax

        $sequence_3 = { 23c3 0bc5 8b6930 03c5 8bee 059979825a 03d0 }
            // n = 7, score = 100
            //   23c3                 | and                 eax, ebx
            //   0bc5                 | or                  eax, ebp
            //   8b6930               | mov                 ebp, dword ptr [ecx + 0x30]
            //   03c5                 | add                 eax, ebp
            //   8bee                 | mov                 ebp, esi
            //   059979825a           | add                 eax, 0x5a827999
            //   03d0                 | add                 edx, eax

        $sequence_4 = { 8d842434020000 64a300000000 8b84244c020000 8bac2444020000 6a04 894c2434 33db }
            // n = 7, score = 100
            //   8d842434020000       | lea                 eax, dword ptr [esp + 0x234]
            //   64a300000000         | mov                 dword ptr fs:[0], eax
            //   8b84244c020000       | mov                 eax, dword ptr [esp + 0x24c]
            //   8bac2444020000       | mov                 ebp, dword ptr [esp + 0x244]
            //   6a04                 | push                4
            //   894c2434             | mov                 dword ptr [esp + 0x34], ecx
            //   33db                 | xor                 ebx, ebx

        $sequence_5 = { 7503 897008 8b4e04 8d4604 385924 }
            // n = 5, score = 100
            //   7503                 | jne                 5
            //   897008               | mov                 dword ptr [eax + 8], esi
            //   8b4e04               | mov                 ecx, dword ptr [esi + 4]
            //   8d4604               | lea                 eax, dword ptr [esi + 4]
            //   385924               | cmp                 byte ptr [ecx + 0x24], bl

        $sequence_6 = { 33cc e8???????? 83c41c c20c00 8b442434 85c0 7406 }
            // n = 7, score = 100
            //   33cc                 | xor                 ecx, esp
            //   e8????????           |                     
            //   83c41c               | add                 esp, 0x1c
            //   c20c00               | ret                 0xc
            //   8b442434             | mov                 eax, dword ptr [esp + 0x34]
            //   85c0                 | test                eax, eax
            //   7406                 | je                  8

        $sequence_7 = { c684442505000000 40 3bc7 7ce9 33d2 8d043f 89442410 }
            // n = 7, score = 100
            //   c684442505000000     | mov                 byte ptr [esp + eax*2 + 0x525], 0
            //   40                   | inc                 eax
            //   3bc7                 | cmp                 eax, edi
            //   7ce9                 | jl                  0xffffffeb
            //   33d2                 | xor                 edx, edx
            //   8d043f               | lea                 eax, dword ptr [edi + edi]
            //   89442410             | mov                 dword ptr [esp + 0x10], eax

        $sequence_8 = { 03f8 85ed 7fdf 8b7c2414 c6460400 c7461001000000 e8???????? }
            // n = 7, score = 100
            //   03f8                 | add                 edi, eax
            //   85ed                 | test                ebp, ebp
            //   7fdf                 | jg                  0xffffffe1
            //   8b7c2414             | mov                 edi, dword ptr [esp + 0x14]
            //   c6460400             | mov                 byte ptr [esi + 4], 0
            //   c7461001000000       | mov                 dword ptr [esi + 0x10], 1
            //   e8????????           |                     

        $sequence_9 = { 8b842480000000 83c404 bf???????? 897c2470 85c0 7409 50 }
            // n = 7, score = 100
            //   8b842480000000       | mov                 eax, dword ptr [esp + 0x80]
            //   83c404               | add                 esp, 4
            //   bf????????           |                     
            //   897c2470             | mov                 dword ptr [esp + 0x70], edi
            //   85c0                 | test                eax, eax
            //   7409                 | je                  0xb
            //   50                   | push                eax

    condition:
        7 of them and filesize < 811008
}