rule win_tollbooth_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-09-17"
        version = "1"
        description = "Detects win.tollbooth."
        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.tollbooth"
        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 = { 7219 4883c227 488b49f8 482bc1 4883c0f8 4883f81f 0f8749020000 }
            // n = 7, score = 100
            //   7219                 | dec                 eax
            //   4883c227             | mov                 dword ptr [esi + 0x40], eax
            //   488b49f8             | dec                 eax
            //   482bc1               | mov                 dword ptr [esi + 0x48], ecx
            //   4883c0f8             | dec                 eax
            //   4883f81f             | mov                 dword ptr [esi + 0x50], edx
            //   0f8749020000         | dec                 eax

        $sequence_1 = { 66490f7ef9 4c8d05b9ac0900 e8???????? 90 41b92d000000 4c8d0586c00900 488d4d8f }
            // n = 7, score = 100
            //   66490f7ef9           | mov                 edx, dword ptr [ecx - 4]
            //   4c8d05b9ac0900       | shr                 edx, cl
            //   e8????????           |                     
            //   90                   | add                 eax, edx
            //   41b92d000000         | dec                 edx
            //   4c8d0586c00900       | movsx               eax, byte ptr [ecx + ebx + 0xb0f08]
            //   488d4d8f             | inc                 edx

        $sequence_2 = { 4883f81f 0f87ac020000 e8???????? 4c896c2458 48c74424600f000000 c644244800 488b55e0 }
            // n = 7, score = 100
            //   4883f81f             | inc                 esp
            //   0f87ac020000         | lea                 eax, [ebx + 5]
            //   e8????????           |                     
            //   4c896c2458           | dec                 eax
            //   48c74424600f000000     | lea    edx, [0x79cd7]
            //   c644244800           | dec                 eax
            //   488b55e0             | lea                 ecx, [esp + 0x58]

        $sequence_3 = { 0f8744020000 e8???????? 4c89642450 48c74424580f000000 c644244000 4c8926 4c896610 }
            // n = 7, score = 100
            //   0f8744020000         | cmovae              eax, dword ptr [ebp + 0x678]
            //   e8????????           |                     
            //   4c89642450           | dec                 eax
            //   48c74424580f000000     | mov    dword ptr [esp + 0x30], ecx
            //   c644244000           | int3                
            //   4c8926               | dec                 eax
            //   4c896610             | lea                 eax, [ebp + 0xa0]

        $sequence_4 = { 90 4885db 740b 493bde 0f8599000000 eb6b 4d8bbcf7401e0b00 }
            // n = 7, score = 100
            //   90                   | dec                 eax
            //   4885db               | mov                 dword ptr [ebp - 0x60], eax
            //   740b                 | dec                 eax
            //   493bde               | cmp                 eax, 0x10
            //   0f8599000000         | dec                 ax
            //   eb6b                 | movd                ecx, mm0
            //   4d8bbcf7401e0b00     | dec                 eax

        $sequence_5 = { 7611 488bcf e8???????? 397328 0f858c020000 8b5328 4533c0 }
            // n = 7, score = 100
            //   7611                 | dec                 esp
            //   488bcf               | mov                 edx, dword ptr [ebx + 0x28]
            //   e8????????           |                     
            //   397328               | dec                 esp
            //   0f858c020000         | mov                 ecx, ecx
            //   8b5328               | mov                 edx, dword ptr [ebx + 0xc4]
            //   4533c0               | dec                 ebp

        $sequence_6 = { 90 4c896d10 0f57c0 660f7f4520 660f6f0d???????? 660f7f4d20 c6451000 }
            // n = 7, score = 100
            //   90                   | mov                 esp, 0xffffffff
            //   4c896d10             | dec                 eax
            //   0f57c0               | cmp                 edi, esi
            //   660f7f4520           | jae                 0xe6a
            //   660f6f0d????????     |                     
            //   660f7f4d20           | dec                 esp
            //   c6451000             | mov                 eax, esi

        $sequence_7 = { 7219 4883c227 488b49f8 482bc1 4883c0f8 4883f81f 0f8788140000 }
            // n = 7, score = 100
            //   7219                 | dec                 esp
            //   4883c227             | mov                 dword ptr [esp + 0x20], eax
            //   488b49f8             | dec                 esp
            //   482bc1               | mov                 ebp, edx
            //   4883c0f8             | dec                 eax
            //   4883f81f             | mov                 esi, ecx
            //   0f8788140000         | dec                 eax

        $sequence_8 = { 7344 498bff 482bf9 4d8bc7 488bcf e8???????? 49890424 }
            // n = 7, score = 100
            //   7344                 | dec                 eax
            //   498bff               | xor                 ecx, esp
            //   482bf9               | dec                 esp
            //   4d8bc7               | mov                 dword ptr [ebp + 0x1f], esp
            //   488bcf               | dec                 esp
            //   e8????????           |                     
            //   49890424             | mov                 dword ptr [ebp + 0x17], esp

        $sequence_9 = { 4155 4156 4157 488dac24e0fbffff 4881ec20050000 488b05???????? 4833c4 }
            // n = 7, score = 100
            //   4155                 | mov                 dword ptr [edx + 0x10], eax
            //   4156                 | dec                 eax
            //   4157                 | mov                 dword ptr [edx + 0x18], 0xf
            //   488dac24e0fbffff     | mov                 byte ptr [edx], al
            //   4881ec20050000       | dec                 eax
            //   488b05????????       |                     
            //   4833c4               | mov                 edx, dword ptr [esp + 0x28]

    condition:
        7 of them and filesize < 1907712
}