rule win_shareip_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-05-04"
        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 = "20260422"
        malpedia_hash = "a182e35da64e6d71cb55f125c4d4225196523f14"
        malpedia_version = "20260504"
        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 = { e8???????? 8b0f 8b06 8bd3 c1ea10 88540801 8b0f }
            // n = 7, score = 100
            //   e8????????           |                     
            //   8b0f                 | mov                 ecx, dword ptr [edi]
            //   8b06                 | mov                 eax, dword ptr [esi]
            //   8bd3                 | mov                 edx, ebx
            //   c1ea10               | shr                 edx, 0x10
            //   88540801             | mov                 byte ptr [eax + ecx + 1], dl
            //   8b0f                 | mov                 ecx, dword ptr [edi]

        $sequence_1 = { 895c242c 89742414 885c2418 895c2420 895c241c }
            // n = 5, score = 100
            //   895c242c             | mov                 dword ptr [esp + 0x2c], ebx
            //   89742414             | mov                 dword ptr [esp + 0x14], esi
            //   885c2418             | mov                 byte ptr [esp + 0x18], bl
            //   895c2420             | mov                 dword ptr [esp + 0x20], ebx
            //   895c241c             | mov                 dword ptr [esp + 0x1c], ebx

        $sequence_2 = { e8???????? 53 e8???????? 83c404 83bc24d400000000 7412 8b8424c4000000 }
            // n = 7, score = 100
            //   e8????????           |                     
            //   53                   | push                ebx
            //   e8????????           |                     
            //   83c404               | add                 esp, 4
            //   83bc24d400000000     | cmp                 dword ptr [esp + 0xd4], 0
            //   7412                 | je                  0x14
            //   8b8424c4000000       | mov                 eax, dword ptr [esp + 0xc4]

        $sequence_3 = { 8d8424fc000000 50 8bce c684248c01000002 e8???????? 85c0 7443 }
            // n = 7, score = 100
            //   8d8424fc000000       | lea                 eax, [esp + 0xfc]
            //   50                   | push                eax
            //   8bce                 | mov                 ecx, esi
            //   c684248c01000002     | mov                 byte ptr [esp + 0x18c], 2
            //   e8????????           |                     
            //   85c0                 | test                eax, eax
            //   7443                 | je                  0x45

        $sequence_4 = { 83c404 33c0 8b8c249c010000 64890d00000000 59 5f 5e }
            // n = 7, score = 100
            //   83c404               | add                 esp, 4
            //   33c0                 | xor                 eax, eax
            //   8b8c249c010000       | mov                 ecx, dword ptr [esp + 0x19c]
            //   64890d00000000       | mov                 dword ptr fs:[0], ecx
            //   59                   | pop                 ecx
            //   5f                   | pop                 edi
            //   5e                   | pop                 esi

        $sequence_5 = { 56 8b7030 0fb7760c 8931 8b4830 0fb6702c 0fb7490e }
            // n = 7, score = 100
            //   56                   | push                esi
            //   8b7030               | mov                 esi, dword ptr [eax + 0x30]
            //   0fb7760c             | movzx               esi, word ptr [esi + 0xc]
            //   8931                 | mov                 dword ptr [ecx], esi
            //   8b4830               | mov                 ecx, dword ptr [eax + 0x30]
            //   0fb6702c             | movzx               esi, byte ptr [eax + 0x2c]
            //   0fb7490e             | movzx               ecx, word ptr [ecx + 0xe]

        $sequence_6 = { 7463 8d842454010000 e8???????? 83bc24c000000008 7210 8b9424ac000000 52 }
            // n = 7, score = 100
            //   7463                 | je                  0x65
            //   8d842454010000       | lea                 eax, [esp + 0x154]
            //   e8????????           |                     
            //   83bc24c000000008     | cmp                 dword ptr [esp + 0xc0], 8
            //   7210                 | jb                  0x12
            //   8b9424ac000000       | mov                 edx, dword ptr [esp + 0xac]
            //   52                   | push                edx

        $sequence_7 = { 83c408 85c0 750a 5f 5b c6461001 32c0 }
            // n = 7, score = 100
            //   83c408               | add                 esp, 8
            //   85c0                 | test                eax, eax
            //   750a                 | jne                 0xc
            //   5f                   | pop                 edi
            //   5b                   | pop                 ebx
            //   c6461001             | mov                 byte ptr [esi + 0x10], 1
            //   32c0                 | xor                 al, al

        $sequence_8 = { 59 47 83ff05 7ee1 56 53 e8???????? }
            // n = 7, score = 100
            //   59                   | pop                 ecx
            //   47                   | inc                 edi
            //   83ff05               | cmp                 edi, 5
            //   7ee1                 | jle                 0xffffffe3
            //   56                   | push                esi
            //   53                   | push                ebx
            //   e8????????           |                     

        $sequence_9 = { e8???????? 8b442424 8b7c2420 8d4c2424 51 8d542414 83c740 }
            // n = 7, score = 100
            //   e8????????           |                     
            //   8b442424             | mov                 eax, dword ptr [esp + 0x24]
            //   8b7c2420             | mov                 edi, dword ptr [esp + 0x20]
            //   8d4c2424             | lea                 ecx, [esp + 0x24]
            //   51                   | push                ecx
            //   8d542414             | lea                 edx, [esp + 0x14]
            //   83c740               | add                 edi, 0x40

    condition:
        7 of them and filesize < 811008
}