rule win_comlook_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-09-17"
        version = "1"
        description = "Detects win.comlook."
        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.comlook"
        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 = { eb05 e9???????? 8b45ec 5f 83c438 3bec e8???????? }
            // n = 7, score = 100
            //   eb05                 | jmp                 7
            //   e9????????           |                     
            //   8b45ec               | mov                 eax, dword ptr [ebp - 0x14]
            //   5f                   | pop                 edi
            //   83c438               | add                 esp, 0x38
            //   3bec                 | cmp                 ebp, esp
            //   e8????????           |                     

        $sequence_1 = { ff15???????? 83c404 3bf4 e8???????? 8b4508 c7400800000000 33c9 }
            // n = 7, score = 100
            //   ff15????????         |                     
            //   83c404               | add                 esp, 4
            //   3bf4                 | cmp                 esi, esp
            //   e8????????           |                     
            //   8b4508               | mov                 eax, dword ptr [ebp + 8]
            //   c7400800000000       | mov                 dword ptr [eax + 8], 0
            //   33c9                 | xor                 ecx, ecx

        $sequence_2 = { e9???????? 6865070000 68???????? 6a41 688d000000 6a14 e8???????? }
            // n = 7, score = 100
            //   e9????????           |                     
            //   6865070000           | push                0x765
            //   68????????           |                     
            //   6a41                 | push                0x41
            //   688d000000           | push                0x8d
            //   6a14                 | push                0x14
            //   e8????????           |                     

        $sequence_3 = { 85c0 7416 8b55f8 8b4204 8b4d0c 0fbe1408 85d2 }
            // n = 7, score = 100
            //   85c0                 | test                eax, eax
            //   7416                 | je                  0x18
            //   8b55f8               | mov                 edx, dword ptr [ebp - 8]
            //   8b4204               | mov                 eax, dword ptr [edx + 4]
            //   8b4d0c               | mov                 ecx, dword ptr [ebp + 0xc]
            //   0fbe1408             | movsx               edx, byte ptr [eax + ecx]
            //   85d2                 | test                edx, edx

        $sequence_4 = { b80c000000 66894154 b001 c3 3c6e 750c ba0a000000 }
            // n = 7, score = 100
            //   b80c000000           | mov                 eax, 0xc
            //   66894154             | mov                 word ptr [ecx + 0x54], ax
            //   b001                 | mov                 al, 1
            //   c3                   | ret                 
            //   3c6e                 | cmp                 al, 0x6e
            //   750c                 | jne                 0xe
            //   ba0a000000           | mov                 edx, 0xa

        $sequence_5 = { e8???????? c645fc01 8b7d08 e8???????? 8b4e04 8bc7 894804 }
            // n = 7, score = 100
            //   e8????????           |                     
            //   c645fc01             | mov                 byte ptr [ebp - 4], 1
            //   8b7d08               | mov                 edi, dword ptr [ebp + 8]
            //   e8????????           |                     
            //   8b4e04               | mov                 ecx, dword ptr [esi + 4]
            //   8bc7                 | mov                 eax, edi
            //   894804               | mov                 dword ptr [eax + 4], ecx

        $sequence_6 = { ebd4 837df400 7513 6a00 6a00 8b45fc 83c014 }
            // n = 7, score = 100
            //   ebd4                 | jmp                 0xffffffd6
            //   837df400             | cmp                 dword ptr [ebp - 0xc], 0
            //   7513                 | jne                 0x15
            //   6a00                 | push                0
            //   6a00                 | push                0
            //   8b45fc               | mov                 eax, dword ptr [ebp - 4]
            //   83c014               | add                 eax, 0x14

        $sequence_7 = { e9???????? 8bf4 6801400000 ff15???????? 83c404 3bf4 e8???????? }
            // n = 7, score = 100
            //   e9????????           |                     
            //   8bf4                 | mov                 esi, esp
            //   6801400000           | push                0x4001
            //   ff15????????         |                     
            //   83c404               | add                 esp, 4
            //   3bf4                 | cmp                 esi, esp
            //   e8????????           |                     

        $sequence_8 = { ffd3 83c408 85c0 0f84f1000000 8b4c2410 8b4614 83781800 }
            // n = 7, score = 100
            //   ffd3                 | call                ebx
            //   83c408               | add                 esp, 8
            //   85c0                 | test                eax, eax
            //   0f84f1000000         | je                  0xf7
            //   8b4c2410             | mov                 ecx, dword ptr [esp + 0x10]
            //   8b4614               | mov                 eax, dword ptr [esi + 0x14]
            //   83781800             | cmp                 dword ptr [eax + 0x18], 0

        $sequence_9 = { e9???????? 668b9500f6ffff 668995f8f5ffff c785f4f5ffff00000000 e9???????? 81bd18f6ffff40270000 7450 }
            // n = 7, score = 100
            //   e9????????           |                     
            //   668b9500f6ffff       | mov                 dx, word ptr [ebp - 0xa00]
            //   668995f8f5ffff       | mov                 word ptr [ebp - 0xa08], dx
            //   c785f4f5ffff00000000     | mov    dword ptr [ebp - 0xa0c], 0
            //   e9????????           |                     
            //   81bd18f6ffff40270000     | cmp    dword ptr [ebp - 0x9e8], 0x2740
            //   7450                 | je                  0x52

    condition:
        7 of them and filesize < 4553728
}