rule win_floki_bot_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.floki_bot"
        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 = { ff742414 e8???????? 837c241000 740a ff742410 ff15???????? 5f }
            // n = 7, score = 1100
            //   ff742414             | push                dword ptr [esp + 0x14]
            //   e8????????           |                     
            //   837c241000           | cmp                 dword ptr [esp + 0x10], 0
            //   740a                 | je                  0xc
            //   ff742410             | push                dword ptr [esp + 0x10]
            //   ff15????????         |                     
            //   5f                   | pop                 edi

        $sequence_1 = { 6810270000 ff35???????? ff15???????? 3d02010000 754a 8d442424 50 }
            // n = 7, score = 1100
            //   6810270000           | push                0x2710
            //   ff35????????         |                     
            //   ff15????????         |                     
            //   3d02010000           | cmp                 eax, 0x102
            //   754a                 | jne                 0x4c
            //   8d442424             | lea                 eax, [esp + 0x24]
            //   50                   | push                eax

        $sequence_2 = { 8b742424 e8???????? 807c241300 750f 6a01 8bc7 e8???????? }
            // n = 7, score = 1100
            //   8b742424             | mov                 esi, dword ptr [esp + 0x24]
            //   e8????????           |                     
            //   807c241300           | cmp                 byte ptr [esp + 0x13], 0
            //   750f                 | jne                 0x11
            //   6a01                 | push                1
            //   8bc7                 | mov                 eax, edi
            //   e8????????           |                     

        $sequence_3 = { 57 8d8500fcffff 50 e8???????? ff7604 8d8500fcffff 68???????? }
            // n = 7, score = 1100
            //   57                   | push                edi
            //   8d8500fcffff         | lea                 eax, [ebp - 0x400]
            //   50                   | push                eax
            //   e8????????           |                     
            //   ff7604               | push                dword ptr [esi + 4]
            //   8d8500fcffff         | lea                 eax, [ebp - 0x400]
            //   68????????           |                     

        $sequence_4 = { 83c608 8901 3bf5 72e6 53 e8???????? 6a01 }
            // n = 7, score = 1100
            //   83c608               | add                 esi, 8
            //   8901                 | mov                 dword ptr [ecx], eax
            //   3bf5                 | cmp                 esi, ebp
            //   72e6                 | jb                  0xffffffe8
            //   53                   | push                ebx
            //   e8????????           |                     
            //   6a01                 | push                1

        $sequence_5 = { 84c9 7403 880b 43 47 3bf8 72f1 }
            // n = 7, score = 1100
            //   84c9                 | test                cl, cl
            //   7403                 | je                  5
            //   880b                 | mov                 byte ptr [ebx], cl
            //   43                   | inc                 ebx
            //   47                   | inc                 edi
            //   3bf8                 | cmp                 edi, eax
            //   72f1                 | jb                  0xfffffff3

        $sequence_6 = { 33d2 85c9 7416 8bf0 833e00 740a 42 }
            // n = 7, score = 1100
            //   33d2                 | xor                 edx, edx
            //   85c9                 | test                ecx, ecx
            //   7416                 | je                  0x18
            //   8bf0                 | mov                 esi, eax
            //   833e00               | cmp                 dword ptr [esi], 0
            //   740a                 | je                  0xc
            //   42                   | inc                 edx

        $sequence_7 = { 85f6 742f f6470401 8d4710 741c 8d4c2404 51 }
            // n = 7, score = 1100
            //   85f6                 | test                esi, esi
            //   742f                 | je                  0x31
            //   f6470401             | test                byte ptr [edi + 4], 1
            //   8d4710               | lea                 eax, [edi + 0x10]
            //   741c                 | je                  0x1e
            //   8d4c2404             | lea                 ecx, [esp + 4]
            //   51                   | push                ecx

        $sequence_8 = { 8d043b ff750c 50 e8???????? 8b4508 8b30 }
            // n = 6, score = 1100
            //   8d043b               | lea                 eax, [ebx + edi]
            //   ff750c               | push                dword ptr [ebp + 0xc]
            //   50                   | push                eax
            //   e8????????           |                     
            //   8b4508               | mov                 eax, dword ptr [ebp + 8]
            //   8b30                 | mov                 esi, dword ptr [eax]

        $sequence_9 = { ff742410 8bf8 e8???????? 8844240f 8d742418 e8???????? ff742414 }
            // n = 7, score = 1100
            //   ff742410             | push                dword ptr [esp + 0x10]
            //   8bf8                 | mov                 edi, eax
            //   e8????????           |                     
            //   8844240f             | mov                 byte ptr [esp + 0xf], al
            //   8d742418             | lea                 esi, [esp + 0x18]
            //   e8????????           |                     
            //   ff742414             | push                dword ptr [esp + 0x14]

    condition:
        7 of them and filesize < 286720
}