rule win_dnspionage_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2020-12-22"
        version = "1"
        description = "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.dnspionage"
        malpedia_rule_date = "20201222"
        malpedia_hash = "30354d830a29f0fbd3714d93d94dea941d77a130"
        malpedia_version = "20201023"
        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 = { 0f114010 660fd64020 c7400c40000000 6a08 }
            // n = 4, score = 300
            //   0f114010             | movups              xmmword ptr [eax + 0x10], xmm0
            //   660fd64020           | movq                qword ptr [eax + 0x20], xmm0
            //   c7400c40000000       | mov                 dword ptr [eax + 0xc], 0x40
            //   6a08                 | push                8

        $sequence_1 = { ff4608 8bce e8???????? 8bd6 8bcf e8???????? }
            // n = 6, score = 300
            //   ff4608               | inc                 dword ptr [esi + 8]
            //   8bce                 | mov                 ecx, esi
            //   e8????????           |                     
            //   8bd6                 | mov                 edx, esi
            //   8bcf                 | mov                 ecx, edi
            //   e8????????           |                     

        $sequence_2 = { 50 6a00 6a00 6a00 ff75f8 68???????? 51 }
            // n = 7, score = 300
            //   50                   | push                eax
            //   6a00                 | push                0
            //   6a00                 | push                0
            //   6a00                 | push                0
            //   ff75f8               | push                dword ptr [ebp - 8]
            //   68????????           |                     
            //   51                   | push                ecx

        $sequence_3 = { 75f2 6a00 c6043300 e8???????? }
            // n = 4, score = 300
            //   75f2                 | jne                 0xfffffff4
            //   6a00                 | push                0
            //   c6043300             | mov                 byte ptr [ebx + esi], 0
            //   e8????????           |                     

        $sequence_4 = { 8bca 8d5901 0f1f4000 8a01 41 84c0 }
            // n = 6, score = 300
            //   8bca                 | mov                 ecx, edx
            //   8d5901               | lea                 ebx, [ecx + 1]
            //   0f1f4000             | nop                 dword ptr [eax]
            //   8a01                 | mov                 al, byte ptr [ecx]
            //   41                   | inc                 ecx
            //   84c0                 | test                al, al

        $sequence_5 = { 7cef 33f6 660f1f440000 0fbe07 }
            // n = 4, score = 300
            //   7cef                 | jl                  0xfffffff1
            //   33f6                 | xor                 esi, esi
            //   660f1f440000         | nop                 word ptr [eax + eax]
            //   0fbe07               | movsx               eax, byte ptr [edi]

        $sequence_6 = { 84c9 75f9 6a00 8d4df8 2bc2 51 }
            // n = 6, score = 300
            //   84c9                 | test                cl, cl
            //   75f9                 | jne                 0xfffffffb
            //   6a00                 | push                0
            //   8d4df8               | lea                 ecx, [ebp - 8]
            //   2bc2                 | sub                 eax, edx
            //   51                   | push                ecx

        $sequence_7 = { 7409 8bd0 8bcf e8???????? 8b35???????? 57 ffd6 }
            // n = 7, score = 300
            //   7409                 | je                  0xb
            //   8bd0                 | mov                 edx, eax
            //   8bcf                 | mov                 ecx, edi
            //   e8????????           |                     
            //   8b35????????         |                     
            //   57                   | push                edi
            //   ffd6                 | call                esi

        $sequence_8 = { e8???????? 8bf8 46 8bcf 0bca 75ec 8b7d0c }
            // n = 7, score = 300
            //   e8????????           |                     
            //   8bf8                 | mov                 edi, eax
            //   46                   | inc                 esi
            //   8bcf                 | mov                 ecx, edi
            //   0bca                 | or                  ecx, edx
            //   75ec                 | jne                 0xffffffee
            //   8b7d0c               | mov                 edi, dword ptr [ebp + 0xc]

        $sequence_9 = { 744c 85ff 7448 b9???????? e8???????? 8bc8 894d0c }
            // n = 7, score = 300
            //   744c                 | je                  0x4e
            //   85ff                 | test                edi, edi
            //   7448                 | je                  0x4a
            //   b9????????           |                     
            //   e8????????           |                     
            //   8bc8                 | mov                 ecx, eax
            //   894d0c               | mov                 dword ptr [ebp + 0xc], ecx

    condition:
        7 of them and filesize < 786432
}