rule win_sdbbot_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2020-05-30"
        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.sdbbot"
        malpedia_rule_date = "20200529"
        malpedia_hash = "92c362319514e5a6da26204961446caa3a8b32a8"
        malpedia_version = "20200529"
        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 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 = { 85db 740c 837dec00 7406 837de000 7510 8b45fc }
            // n = 7, score = 300
            //   85db                 | test                ebx, ebx
            //   740c                 | je                  0xe
            //   837dec00             | cmp                 dword ptr [ebp - 0x14], 0
            //   7406                 | je                  8
            //   837de000             | cmp                 dword ptr [ebp - 0x20], 0
            //   7510                 | jne                 0x12
            //   8b45fc               | mov                 eax, dword ptr [ebp - 4]

        $sequence_1 = { eb03 8b45e4 2bd1 03c1 8955ec 8945e4 }
            // n = 6, score = 300
            //   eb03                 | jmp                 5
            //   8b45e4               | mov                 eax, dword ptr [ebp - 0x1c]
            //   2bd1                 | sub                 edx, ecx
            //   03c1                 | add                 eax, ecx
            //   8955ec               | mov                 dword ptr [ebp - 0x14], edx
            //   8945e4               | mov                 dword ptr [ebp - 0x1c], eax

        $sequence_2 = { 85d2 0f8560ffffff 8b5df0 8b7328 8b5dfc }
            // n = 5, score = 300
            // 
            //   0f8560ffffff         | jne                 0xffffff66
            //   8b5df0               | mov                 ebx, dword ptr [ebp - 0x10]
            //   8b7328               | mov                 esi, dword ptr [ebx + 0x28]
            //   8b5dfc               | mov                 ebx, dword ptr [ebp - 4]

        $sequence_3 = { 6a00 ff55f4 ff7350 8bf0 }
            // n = 4, score = 300
            //   6a00                 | push                0
            //   ff55f4               | call                dword ptr [ebp - 0xc]
            //   ff7350               | push                dword ptr [ebx + 0x50]
            //   8bf0                 | mov                 esi, eax

        $sequence_4 = { 8b7f10 03fa 833f00 7449 85f6 7422 }
            // n = 6, score = 300
            //   8b7f10               | mov                 edi, dword ptr [edi + 0x10]
            //   03fa                 | add                 edi, edx
            //   833f00               | cmp                 dword ptr [edi], 0
            //   7449                 | je                  0x4b
            //   85f6                 | test                esi, esi
            //   7422                 | je                  0x24

        $sequence_5 = { 83c704 83c602 6685c0 75aa 8b5df4 837de800 7416 }
            // n = 7, score = 300
            //   83c704               | add                 edi, 4
            //   83c602               | add                 esi, 2
            //   6685c0               | test                ax, ax
            //   75aa                 | jne                 0xffffffac
            //   8b5df4               | mov                 ebx, dword ptr [ebp - 0xc]
            //   837de800             | cmp                 dword ptr [ebp - 0x18], 0
            //   7416                 | je                  0x18

        $sequence_6 = { 81f9b80a4c53 7521 8b45dc 0fb70e 8b401c 8d0488 8b0418 }
            // n = 7, score = 300
            //   81f9b80a4c53         | cmp                 ecx, 0x534c0ab8
            //   7521                 | jne                 0x23
            //   8b45dc               | mov                 eax, dword ptr [ebp - 0x24]
            //   0fb70e               | movzx               ecx, word ptr [esi]
            //   8b401c               | mov                 eax, dword ptr [eax + 0x1c]
            //   8d0488               | lea                 eax, [eax + ecx*4]
            //   8b0418               | mov                 eax, dword ptr [eax + ebx]

        $sequence_7 = { ba4d5a0000 6690 663917 7516 }
            // n = 4, score = 300
            //   ba4d5a0000           | mov                 edx, 0x5a4d
            //   6690                 | nop                 
            //   663917               | cmp                 word ptr [edi], dx
            //   7516                 | jne                 0x18

        $sequence_8 = { 7608 8d4870 80f91f 7702 0420 }
            // n = 5, score = 200
            //   7608                 | jbe                 0xa
            //   8d4870               | lea                 ecx, [eax + 0x70]
            //   80f91f               | cmp                 cl, 0x1f
            //   7702                 | ja                  4
            //   0420                 | add                 al, 0x20

        $sequence_9 = { 83e821 8bc8 c0e002 c1f906 }
            // n = 4, score = 200
            //   83e821               | sub                 eax, 0x21
            //   8bc8                 | mov                 ecx, eax
            //   c0e002               | shl                 al, 2
            //   c1f906               | sar                 ecx, 6

        $sequence_10 = { 2bc2 81ea21100000 8bca c1f90e 80c9c0 }
            // n = 5, score = 200
            //   2bc2                 | sub                 eax, edx
            //   81ea21100000         | sub                 edx, 0x1021
            //   8bca                 | mov                 ecx, edx
            //   c1f90e               | sar                 ecx, 0xe
            //   80c9c0               | or                  cl, 0xc0

        $sequence_11 = { 803d????????00 750c c605????????01 e8???????? }
            // n = 4, score = 200
            //   803d????????00       |                     
            //   750c                 | jne                 0xe
            //   c605????????01       |                     
            //   e8????????           |                     

        $sequence_12 = { ff15???????? 83f8ff 750d ff15???????? 3d48270000 }
            // n = 5, score = 200
            //   ff15????????         |                     
            //   83f8ff               | cmp                 eax, -1
            //   750d                 | jne                 0xf
            //   ff15????????         |                     
            //   3d48270000           | cmp                 eax, 0x2748

        $sequence_13 = { c3 3b510c 0f4f510c 895108 }
            // n = 4, score = 100
            //   c3                   | dec                 eax
            //   3b510c               | mov                 esi, dword ptr [esp + 0x50]
            //   0f4f510c             | dec                 eax
            //   895108               | add                 esp, 0x30

        $sequence_14 = { 4c89742440 48892a 8bdd 66896c2448 488bfa }
            // n = 5, score = 100
            //   4c89742440           | ret                 
            //   48892a               | cmp                 edx, dword ptr [ecx + 0xc]
            //   8bdd                 | cmovg               edx, dword ptr [ecx + 0xc]
            //   66896c2448           | mov                 dword ptr [ecx + 8], edx
            //   488bfa               | dec                 esp

        $sequence_15 = { 488bcf e8???????? 488b5c2448 33c0 488b742450 4883c430 }
            // n = 6, score = 100
            //   488bcf               | dec                 eax
            //   e8????????           |                     
            //   488b5c2448           | mov                 ecx, edi
            //   33c0                 | dec                 eax
            //   488b742450           | mov                 ebx, dword ptr [esp + 0x48]
            //   4883c430             | xor                 eax, eax

    condition:
        7 of them and filesize < 181248
}