rule win_duqu_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2023-07-11"
        version = "1"
        description = "Detects win.duqu."
        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.duqu"
        malpedia_rule_date = "20230705"
        malpedia_hash = "42d0574f4405bd7d2b154d321d345acb18834a41"
        malpedia_version = "20230715"
        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 = { 894634 8bcf e8???????? 894638 }
            // n = 4, score = 400
            //   894634               | mov                 dword ptr [esi + 0x34], eax
            //   8bcf                 | mov                 ecx, edi
            //   e8????????           |                     
            //   894638               | mov                 dword ptr [esi + 0x38], eax

        $sequence_1 = { 8bd8 4a 8a06 84c0 75da 895c2424 }
            // n = 6, score = 400
            //   8bd8                 | mov                 ebx, eax
            //   4a                   | dec                 edx
            //   8a06                 | mov                 al, byte ptr [esi]
            //   84c0                 | test                al, al
            //   75da                 | jne                 0xffffffdc
            //   895c2424             | mov                 dword ptr [esp + 0x24], ebx

        $sequence_2 = { 8bcf e8???????? ba2760f046 89463c 8bcf }
            // n = 5, score = 400
            //   8bcf                 | mov                 ecx, edi
            //   e8????????           |                     
            //   ba2760f046           | mov                 edx, 0x46f06027
            //   89463c               | mov                 dword ptr [esi + 0x3c], eax
            //   8bcf                 | mov                 ecx, edi

        $sequence_3 = { 03c2 3bf8 0f8320010000 8a07 }
            // n = 4, score = 400
            //   03c2                 | add                 eax, edx
            //   3bf8                 | cmp                 edi, eax
            //   0f8320010000         | jae                 0x126
            //   8a07                 | mov                 al, byte ptr [edi]

        $sequence_4 = { e8???????? ba6863ff1e 898690000000 8bcf e8???????? ba36442dba }
            // n = 6, score = 400
            //   e8????????           |                     
            //   ba6863ff1e           | mov                 edx, 0x1eff6368
            //   898690000000         | mov                 dword ptr [esi + 0x90], eax
            //   8bcf                 | mov                 ecx, edi
            //   e8????????           |                     
            //   ba36442dba           | mov                 edx, 0xba2d4436

        $sequence_5 = { 3dfb0a5ecd 0f85c5000000 3bd6 0f84bd000000 8b4224 8b7a20 }
            // n = 6, score = 400
            //   3dfb0a5ecd           | cmp                 eax, 0xcd5e0afb
            //   0f85c5000000         | jne                 0xcb
            //   3bd6                 | cmp                 edx, esi
            //   0f84bd000000         | je                  0xc3
            //   8b4224               | mov                 eax, dword ptr [edx + 0x24]
            //   8b7a20               | mov                 edi, dword ptr [edx + 0x20]

        $sequence_6 = { 56 51 8bf2 e8???????? }
            // n = 4, score = 400
            //   56                   | push                esi
            //   51                   | push                ecx
            //   8bf2                 | mov                 esi, edx
            //   e8????????           |                     

        $sequence_7 = { 7e34 0fb60a 8d41bf 6683f819 }
            // n = 4, score = 400
            //   7e34                 | jle                 0x36
            //   0fb60a               | movzx               ecx, byte ptr [edx]
            //   8d41bf               | lea                 eax, [ecx - 0x41]
            //   6683f819             | cmp                 ax, 0x19

        $sequence_8 = { 85c0 7465 e8???????? 85c0 }
            // n = 4, score = 400
            //   85c0                 | test                eax, eax
            //   7465                 | je                  0x67
            //   e8????????           |                     
            //   85c0                 | test                eax, eax

        $sequence_9 = { 0fafd8 8b442420 33d9 8b4c2414 }
            // n = 4, score = 400
            //   0fafd8               | imul                ebx, eax
            //   8b442420             | mov                 eax, dword ptr [esp + 0x20]
            //   33d9                 | xor                 ebx, ecx
            //   8b4c2414             | mov                 ecx, dword ptr [esp + 0x14]

        $sequence_10 = { 8bf2 57 8bf9 85f6 7425 }
            // n = 5, score = 200
            //   8bf2                 | mov                 esi, edx
            //   57                   | push                edi
            //   8bf9                 | mov                 edi, ecx
            //   85f6                 | test                esi, esi
            //   7425                 | je                  0x27

        $sequence_11 = { 8bf2 3bce 8975fc 894df8 }
            // n = 4, score = 200
            //   8bf2                 | mov                 esi, edx
            //   3bce                 | cmp                 ecx, esi
            //   8975fc               | mov                 dword ptr [ebp - 4], esi
            //   894df8               | mov                 dword ptr [ebp - 8], ecx

        $sequence_12 = { 8bf1 ff15???????? 8b06 8b7604 }
            // n = 4, score = 200
            //   8bf1                 | mov                 esi, ecx
            //   ff15????????         |                     
            //   8b06                 | mov                 eax, dword ptr [esi]
            //   8b7604               | mov                 esi, dword ptr [esi + 4]

        $sequence_13 = { 8bf1 e8???????? 8bce 8bf8 e8???????? ff4608 }
            // n = 6, score = 200
            //   8bf1                 | mov                 esi, ecx
            //   e8????????           |                     
            //   8bce                 | mov                 ecx, esi
            //   8bf8                 | mov                 edi, eax
            //   e8????????           |                     
            //   ff4608               | inc                 dword ptr [esi + 8]

        $sequence_14 = { 8bf1 e8???????? 8b75fc 8d0cdda0ea6110 8b5104 }
            // n = 5, score = 200
            //   8bf1                 | mov                 esi, ecx
            //   e8????????           |                     
            //   8b75fc               | mov                 esi, dword ptr [ebp - 4]
            //   8d0cdda0ea6110       | lea                 ecx, [ebx*8 + 0x1061eaa0]
            //   8b5104               | mov                 edx, dword ptr [ecx + 4]

        $sequence_15 = { 8bf2 57 8d4e4c e8???????? }
            // n = 4, score = 200
            //   8bf2                 | mov                 esi, edx
            //   57                   | push                edi
            //   8d4e4c               | lea                 ecx, [esi + 0x4c]
            //   e8????????           |                     

    condition:
        7 of them and filesize < 18759680
}