rule win_roadsweep_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-09-17"
        version = "1"
        description = "Detects win.roadsweep."
        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.roadsweep"
        malpedia_rule_date = "20260916"
        malpedia_hash = "53a643781c18e08f4a50949af60172d837a0b6f6"
        malpedia_version = "20260917"
        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 = { 8b7508 893424 e8???????? 83ec04 89c2 83f8ff 741f }
            // n = 7, score = 100
            //   8b7508               | mov                 esi, dword ptr [ebp + 8]
            //   893424               | mov                 dword ptr [esp], esi
            //   e8????????           |                     
            //   83ec04               | sub                 esp, 4
            //   89c2                 | mov                 edx, eax
            //   83f8ff               | cmp                 eax, -1
            //   741f                 | je                  0x21

        $sequence_1 = { 89c6 c74424088e040000 c744240400000000 e8???????? 89742408 891c24 8d9d68faffff }
            // n = 7, score = 100
            //   89c6                 | mov                 esi, eax
            //   c74424088e040000     | mov                 dword ptr [esp + 8], 0x48e
            //   c744240400000000     | mov                 dword ptr [esp + 4], 0
            //   e8????????           |                     
            //   89742408             | mov                 dword ptr [esp + 8], esi
            //   891c24               | mov                 dword ptr [esp], ebx
            //   8d9d68faffff         | lea                 ebx, [ebp - 0x598]

        $sequence_2 = { 0fb645bf 8845c7 741c 85c9 7418 8b5508 }
            // n = 6, score = 100
            //   0fb645bf             | movzx               eax, byte ptr [ebp - 0x41]
            //   8845c7               | mov                 byte ptr [ebp - 0x39], al
            //   741c                 | je                  0x1e
            //   85c9                 | test                ecx, ecx
            //   7418                 | je                  0x1a
            //   8b5508               | mov                 edx, dword ptr [ebp + 8]

        $sequence_3 = { bb5a000000 8985a4f3ffff 90 895c240c 4b 893424 }
            // n = 6, score = 100
            //   bb5a000000           | mov                 ebx, 0x5a
            //   8985a4f3ffff         | mov                 dword ptr [ebp - 0xc5c], eax
            //   90                   | nop                 
            //   895c240c             | mov                 dword ptr [esp + 0xc], ebx
            //   4b                   | dec                 ebx
            //   893424               | mov                 dword ptr [esp], esi

        $sequence_4 = { c1e004 81e7f0000000 c1ff04 0fb68c38b0914000 8b4508 880c1e 8b38 }
            // n = 7, score = 100
            //   c1e004               | shl                 eax, 4
            //   81e7f0000000         | and                 edi, 0xf0
            //   c1ff04               | sar                 edi, 4
            //   0fb68c38b0914000     | movzx               ecx, byte ptr [eax + edi + 0x4091b0]
            //   8b4508               | mov                 eax, dword ptr [ebp + 8]
            //   880c1e               | mov                 byte ptr [esi + ebx], cl
            //   8b38                 | mov                 edi, dword ptr [eax]

        $sequence_5 = { c744240801000000 c744240400000000 894dd4 8b4b04 890c24 }
            // n = 5, score = 100
            //   c744240801000000     | mov                 dword ptr [esp + 8], 1
            //   c744240400000000     | mov                 dword ptr [esp + 4], 0
            //   894dd4               | mov                 dword ptr [ebp - 0x2c], ecx
            //   8b4b04               | mov                 ecx, dword ptr [ebx + 4]
            //   890c24               | mov                 dword ptr [esp], ecx

        $sequence_6 = { 898570ffffff 85c0 c7458408000000 0f8442020000 c745a0ffffffff 8d45c8 8b9570ffffff }
            // n = 7, score = 100
            //   898570ffffff         | mov                 dword ptr [ebp - 0x90], eax
            //   85c0                 | test                eax, eax
            //   c7458408000000       | mov                 dword ptr [ebp - 0x7c], 8
            //   0f8442020000         | je                  0x248
            //   c745a0ffffffff       | mov                 dword ptr [ebp - 0x60], 0xffffffff
            //   8d45c8               | lea                 eax, [ebp - 0x38]
            //   8b9570ffffff         | mov                 edx, dword ptr [ebp - 0x90]

        $sequence_7 = { c645dd68 c645de00 c645df00 c645e010 }
            // n = 4, score = 100
            //   c645dd68             | mov                 byte ptr [ebp - 0x23], 0x68
            //   c645de00             | mov                 byte ptr [ebp - 0x22], 0
            //   c645df00             | mov                 byte ptr [ebp - 0x21], 0
            //   c645e010             | mov                 byte ptr [ebp - 0x20], 0x10

        $sequence_8 = { 35002b2b43 09c1 741b 85ff 7542 891e }
            // n = 6, score = 100
            //   35002b2b43           | xor                 eax, 0x432b2b00
            //   09c1                 | or                  ecx, eax
            //   741b                 | je                  0x1d
            //   85ff                 | test                edi, edi
            //   7542                 | jne                 0x44
            //   891e                 | mov                 dword ptr [esi], ebx

        $sequence_9 = { 895c2408 891c24 e8???????? e9???????? c7042400000000 e8???????? }
            // n = 6, score = 100
            //   895c2408             | mov                 dword ptr [esp + 8], ebx
            //   891c24               | mov                 dword ptr [esp], ebx
            //   e8????????           |                     
            //   e9????????           |                     
            //   c7042400000000       | mov                 dword ptr [esp], 0
            //   e8????????           |                     

    condition:
        7 of them and filesize < 160768
}