rule win_sdbbot_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2020-10-14"
        version = "1"
        description = "autogenerated rule brought to you by yara-signator"
        tool = "yara-signator v0.5.0"
        tool_config = "callsandjumps;datarefs;binvalue"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.sdbbot"
        malpedia_rule_date = "20201014"
        malpedia_hash = "a7e3bd57eaf12bf3ea29a863c041091ba3af9ac9"
        malpedia_version = "20201014"
        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 = { 6a00 ff55f4 ff7350 8bf0 56 8975fc ff55ec }
            // n = 7, score = 500
            //   6a00                 | push                0
            //   ff55f4               | call                dword ptr [ebp - 0xc]
            //   ff7350               | push                dword ptr [ebx + 0x50]
            //   8bf0                 | mov                 esi, eax
            //   56                   | push                esi
            //   8975fc               | mov                 dword ptr [ebp - 4], esi
            //   ff55ec               | call                dword ptr [ebp - 0x14]

        $sequence_1 = { 0f8549feffff 8b7df8 8b5f3c 6a40 }
            // n = 4, score = 500
            //   0f8549feffff         | jne                 0xfffffe4f
            //   8b7df8               | mov                 edi, dword ptr [ebp - 8]
            //   8b5f3c               | mov                 ebx, dword ptr [edi + 0x3c]
            //   6a40                 | push                0x40

        $sequence_2 = { 7403 4f ebe2 64a130000000 897df8 }
            // n = 5, score = 500
            //   7403                 | je                  5
            //   4f                   | dec                 edi
            //   ebe2                 | jmp                 0xffffffe4
            //   64a130000000         | mov                 eax, dword ptr fs:[0x30]
            //   897df8               | mov                 dword ptr [ebp - 8], edi

        $sequence_3 = { 8bbb80000000 03fe 897dec 833f00 0f847d000000 8b470c 03c6 }
            // n = 7, score = 500
            //   8bbb80000000         | mov                 edi, dword ptr [ebx + 0x80]
            //   03fe                 | add                 edi, esi
            //   897dec               | mov                 dword ptr [ebp - 0x14], edi
            //   833f00               | cmp                 dword ptr [edi], 0
            //   0f847d000000         | je                  0x83
            //   8b470c               | mov                 eax, dword ptr [edi + 0xc]
            //   03c6                 | add                 eax, esi

        $sequence_4 = { 33c9 0fb75024 0f1f8000000000 0fb63e c1c90d 803e61 7203 }
            // n = 7, score = 500
            //   33c9                 | xor                 ecx, ecx
            //   0fb75024             | movzx               edx, word ptr [eax + 0x24]
            //   0f1f8000000000       | nop                 dword ptr [eax]
            //   0fb63e               | movzx               edi, byte ptr [esi]
            //   c1c90d               | ror                 ecx, 0xd
            //   803e61               | cmp                 byte ptr [esi], 0x61
            //   7203                 | jb                  5

        $sequence_5 = { 8b470c 03c6 50 ff55e8 8bd8 85db }
            // n = 6, score = 500
            //   8b470c               | mov                 eax, dword ptr [edi + 0xc]
            //   03c6                 | add                 eax, esi
            //   50                   | push                eax
            //   ff55e8               | call                dword ptr [ebp - 0x18]
            //   8bd8                 | mov                 ebx, eax
            //   85db                 | test                ebx, ebx

        $sequence_6 = { 8b45f8 8b75fc 83c728 85db 75d2 8b5df0 8bbb80000000 }
            // n = 7, score = 500
            //   8b45f8               | mov                 eax, dword ptr [ebp - 8]
            //   8b75fc               | mov                 esi, dword ptr [ebp - 4]
            //   83c728               | add                 edi, 0x28
            //   85db                 | test                ebx, ebx
            //   75d2                 | jne                 0xffffffd4
            //   8b5df0               | mov                 ebx, dword ptr [ebp - 0x10]
            //   8bbb80000000         | mov                 edi, dword ptr [ebx + 0x80]

        $sequence_7 = { 03c6 8945f4 eb0e 3df232f60e 7507 }
            // n = 5, score = 500
            //   03c6                 | add                 eax, esi
            //   8945f4               | mov                 dword ptr [ebp - 0xc], eax
            //   eb0e                 | jmp                 0x10
            //   3df232f60e           | cmp                 eax, 0xef632f2
            //   7507                 | jne                 9

        $sequence_8 = { 49ffca 0fb7ca 0fb7c2 66c1e90c 6683f90a }
            // n = 5, score = 300
            //   49ffca               | dec                 ebp
            //   0fb7ca               | test                edx, edx
            //   0fb7c2               | ja                  0xc
            //   66c1e90c             | inc                 edx
            //   6683f90a             | cmp                 dword ptr [edx + ebp], 0x4550

        $sequence_9 = { eb10 6683f902 750a 25ff0f0000 6646010c00 4983c302 4d85d2 }
            // n = 7, score = 300
            //   eb10                 | cmove               eax, ebx
            //   6683f902             | dec                 eax
            //   750a                 | cmp                 dword ptr [edi], 0
            //   25ff0f0000           | dec                 eax
            //   6646010c00           | mov                 ebx, eax
            //   4983c302             | jne                 0xffffffa9
            //   4d85d2               | jmp                 0x12

        $sequence_10 = { 3d5d68fa3c 0f859e000000 4d8b5720 41beffff0000 4963423c 428b9c1088000000 468b441320 }
            // n = 7, score = 300
            //   3d5d68fa3c           | je                  0xf
            //   0f859e000000         | dec                 ecx
            //   4d8b5720             | dec                 ebp
            //   41beffff0000         | jmp                 0xffffffe8
            //   4963423c             | dec                 eax
            //   428b9c1088000000     | mov                 eax, dword ptr [0x60]
            //   468b441320           | inc                 ecx

        $sequence_11 = { 740a 4885ed 7405 4885db 750c }
            // n = 5, score = 300
            //   740a                 | je                  0xc
            //   4885ed               | dec                 eax
            //   7405                 | test                ebp, ebp
            //   4885db               | je                  7
            //   750c                 | dec                 eax

        $sequence_12 = { 7514 81e2ff0f0000 4a8b0402 498d0c01 4a890c02 eb3c }
            // n = 6, score = 300
            //   7514                 | cmp                 cx, 0xa
            //   81e2ff0f0000         | cmp                 eax, 0x3cfa685d
            //   4a8b0402             | jne                 0xa4
            //   498d0c01             | dec                 ebp
            //   4a890c02             | mov                 edx, dword ptr [edi + 0x20]
            //   eb3c                 | inc                 ecx

        $sequence_13 = { 488d4308 480f44c3 48833f00 488bd8 75a4 }
            // n = 5, score = 300
            //   488d4308             | test                ebx, ebx
            //   480f44c3             | jne                 0xe
            //   48833f00             | dec                 eax
            //   488bd8               | lea                 eax, [ebx + 8]
            //   75a4                 | dec                 eax

        $sequence_14 = { 450fb75706 4983c12c 4d85d2 7446 4d03cf 0f1f840000000000 }
            // n = 6, score = 300
            //   450fb75706           | mov                 ebx, 1
            //   4983c12c             | dec                 ecx
            //   4d85d2               | dec                 edx
            //   7446                 | movzx               ecx, dx
            //   4d03cf               | movzx               eax, dx
            //   0f1f840000000000     | shr                 cx, 0xc

        $sequence_15 = { 770a 42813c2a50450000 7405 49ffcd ebd9 65488b042560000000 41bb01000000 }
            // n = 7, score = 300
            //   770a                 | cmp                 cx, 2
            //   42813c2a50450000     | jne                 0x10
            //   7405                 | and                 eax, 0xfff
            //   49ffcd               | inc                 si
            //   ebd9                 | add                 dword ptr [eax + eax], ecx
            //   65488b042560000000     | dec    ecx
            //   41bb01000000         | add                 ebx, 2

    condition:
        7 of them and filesize < 1015808
}