rule win_plaintee_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2020-08-17"
        version = "1"
        description = "autogenerated rule brought to you by yara-signator"
        tool = "yara-signator v0.4.0"
        tool_config = "callsandjumps;datarefs;binvalue"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.plaintee"
        malpedia_rule_date = "20200817"
        malpedia_hash = "8c895fd01eccb47a6225bcb1a3ba53cbb98644c5"
        malpedia_version = "20200817"
        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 / approach 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 = { eb02 33f6 8bce e8???????? 8a8669010000 84c0 7416 }
            // n = 7, score = 300
            //   eb02                 | jmp                 4
            //   33f6                 | xor                 esi, esi
            //   8bce                 | mov                 ecx, esi
            //   e8????????           |                     
            //   8a8669010000         | mov                 al, byte ptr [esi + 0x169]
            //   84c0                 | test                al, al
            //   7416                 | je                  0x18

        $sequence_1 = { 8bce e8???????? 56 e8???????? 83c404 ebb4 }
            // n = 6, score = 300
            //   8bce                 | mov                 ecx, esi
            //   e8????????           |                     
            //   56                   | push                esi
            //   e8????????           |                     
            //   83c404               | add                 esp, 4
            //   ebb4                 | jmp                 0xffffffb6

        $sequence_2 = { 85c0 740a b001 5e 81c490010000 }
            // n = 5, score = 300
            //   85c0                 | test                eax, eax
            //   740a                 | je                  0xc
            //   b001                 | mov                 al, 1
            //   5e                   | pop                 esi
            //   81c490010000         | add                 esp, 0x190

        $sequence_3 = { 740a b001 5e 81c490010000 c3 6a11 }
            // n = 6, score = 300
            //   740a                 | je                  0xc
            //   b001                 | mov                 al, 1
            //   5e                   | pop                 esi
            //   81c490010000         | add                 esp, 0x190
            //   c3                   | ret                 
            //   6a11                 | push                0x11

        $sequence_4 = { 56 50 ff15???????? 83f85a }
            // n = 4, score = 300
            //   56                   | push                esi
            //   50                   | push                eax
            //   ff15????????         |                     
            //   83f85a               | cmp                 eax, 0x5a

        $sequence_5 = { f7f9 8b4c240c b801000000 80c20a }
            // n = 4, score = 300
            //   f7f9                 | idiv                ecx
            //   8b4c240c             | mov                 ecx, dword ptr [esp + 0xc]
            //   b801000000           | mov                 eax, 1
            //   80c20a               | add                 dl, 0xa

        $sequence_6 = { ff15???????? 85c0 740a b001 5e 81c490010000 }
            // n = 6, score = 300
            //   ff15????????         |                     
            //   85c0                 | test                eax, eax
            //   740a                 | je                  0xc
            //   b001                 | mov                 al, 1
            //   5e                   | pop                 esi
            //   81c490010000         | add                 esp, 0x190

        $sequence_7 = { 32da 881c31 41 3bc8 7cf3 }
            // n = 5, score = 300
            //   32da                 | xor                 bl, dl
            //   881c31               | mov                 byte ptr [ecx + esi], bl
            //   41                   | inc                 ecx
            //   3bc8                 | cmp                 ecx, eax
            //   7cf3                 | jl                  0xfffffff5

        $sequence_8 = { 85c0 7412 8b0d???????? 51 8bc8 e8???????? 8bf0 }
            // n = 7, score = 300
            //   85c0                 | test                eax, eax
            //   7412                 | je                  0x14
            //   8b0d????????         |                     
            //   51                   | push                ecx
            //   8bc8                 | mov                 ecx, eax
            //   e8????????           |                     
            //   8bf0                 | mov                 esi, eax

        $sequence_9 = { 68ac010000 e8???????? 83c404 85c0 7412 8b0d???????? 51 }
            // n = 7, score = 300
            //   68ac010000           | push                0x1ac
            //   e8????????           |                     
            //   83c404               | add                 esp, 4
            //   85c0                 | test                eax, eax
            //   7412                 | je                  0x14
            //   8b0d????????         |                     
            //   51                   | push                ecx

    condition:
        7 of them and filesize < 73728
}