rule win_floki_bot_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2019-11-26"
        version = "1"
        description = "autogenerated rule brought to you by yara-signator"
        tool = "yara-signator 0.1a"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.floki_bot"
        malpedia_version = "20190204"
        malpedia_license = "CC BY-NC-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 will be published in the near future 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 = { eb07 8b4714 40 894608 8b461c 2b4608 }
            // n = 6, score = 700
            //   eb07                 | jmp                 9
            //   8b4714               | mov                 eax, dword ptr [edi + 0x14]
            //   40                   | inc                 eax
            //   894608               | mov                 dword ptr [esi + 8], eax
            //   8b461c               | mov                 eax, dword ptr [esi + 0x1c]
            //   2b4608               | sub                 eax, dword ptr [esi + 8]

        $sequence_1 = { ff7708 8bf0 53 83c8ff e8???????? ff770c 8945f8 }
            // n = 7, score = 700
            //   ff7708               | push                dword ptr [edi + 8]
            //   8bf0                 | mov                 esi, eax
            //   53                   | push                ebx
            //   83c8ff               | or                  eax, 0xffffffff
            //   e8????????           |                     
            //   ff770c               | push                dword ptr [edi + 0xc]
            //   8945f8               | mov                 dword ptr [ebp - 8], eax

        $sequence_2 = { 8b4c2404 53 56 57 8bf8 e8???????? 8bf0 }
            // n = 7, score = 700
            //   8b4c2404             | mov                 ecx, dword ptr [esp + 4]
            //   53                   | push                ebx
            //   56                   | push                esi
            //   57                   | push                edi
            //   8bf8                 | mov                 edi, eax
            //   e8????????           |                     
            //   8bf0                 | mov                 esi, eax

        $sequence_3 = { 8b38 e8???????? ff45fc 3b75f4 0f826bffffff }
            // n = 5, score = 700
            //   8b38                 | mov                 edi, dword ptr [eax]
            //   e8????????           |                     
            //   ff45fc               | inc                 dword ptr [ebp - 4]
            //   3b75f4               | cmp                 esi, dword ptr [ebp - 0xc]
            //   0f826bffffff         | jb                  0xffffff71

        $sequence_4 = { 894b24 894328 6a1c 56 8d7d08 e8???????? 89450c }
            // n = 7, score = 700
            //   894b24               | mov                 dword ptr [ebx + 0x24], ecx
            //   894328               | mov                 dword ptr [ebx + 0x28], eax
            //   6a1c                 | push                0x1c
            //   56                   | push                esi
            //   8d7d08               | lea                 edi, [ebp + 8]
            //   e8????????           |                     
            //   89450c               | mov                 dword ptr [ebp + 0xc], eax

        $sequence_5 = { ff75f8 e8???????? 8b7df4 8b45fc 8945f8 8b45f8 03c3 }
            // n = 7, score = 700
            //   ff75f8               | push                dword ptr [ebp - 8]
            //   e8????????           |                     
            //   8b7df4               | mov                 edi, dword ptr [ebp - 0xc]
            //   8b45fc               | mov                 eax, dword ptr [ebp - 4]
            //   8945f8               | mov                 dword ptr [ebp - 8], eax
            //   8b45f8               | mov                 eax, dword ptr [ebp - 8]
            //   03c3                 | add                 eax, ebx

        $sequence_6 = { e8???????? 84c0 7475 8365d800 33c0 40 6a10 }
            // n = 7, score = 700
            //   e8????????           |                     
            //   84c0                 | test                al, al
            //   7475                 | je                  0x77
            //   8365d800             | and                 dword ptr [ebp - 0x28], 0
            //   33c0                 | xor                 eax, eax
            //   40                   | inc                 eax
            //   6a10                 | push                0x10

        $sequence_7 = { 89530c e8???????? 8bf0 8975dc 85f6 0f84ed000000 6a00 }
            // n = 7, score = 700
            //   89530c               | mov                 dword ptr [ebx + 0xc], edx
            //   e8????????           |                     
            //   8bf0                 | mov                 esi, eax
            //   8975dc               | mov                 dword ptr [ebp - 0x24], esi
            //   85f6                 | test                esi, esi
            //   0f84ed000000         | je                  0xf3
            //   6a00                 | push                0

        $sequence_8 = { 750e 33c0 384318 0f95c0 8db830010000 8b75f0 }
            // n = 6, score = 700
            //   750e                 | jne                 0x10
            //   33c0                 | xor                 eax, eax
            //   384318               | cmp                 byte ptr [ebx + 0x18], al
            //   0f95c0               | setne               al
            //   8db830010000         | lea                 edi, [eax + 0x130]
            //   8b75f0               | mov                 esi, dword ptr [ebp - 0x10]

        $sequence_9 = { 750b 50 ff15???????? 32c0 eb02 b001 c20400 }
            // n = 7, score = 700
            //   750b                 | jne                 0xd
            //   50                   | push                eax
            //   ff15????????         |                     
            //   32c0                 | xor                 al, al
            //   eb02                 | jmp                 4
            //   b001                 | mov                 al, 1
            //   c20400               | ret                 4

    condition:
        7 of them
}