rule win_glupteba_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.glupteba"
        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 = { 8d45ec 50 ff75fc e8???????? 83c40c 837dfcff 7441 }
            // n = 7, score = 400
            //   8d45ec               | lea                 eax, [ebp - 0x14]
            //   50                   | push                eax
            //   ff75fc               | push                dword ptr [ebp - 4]
            //   e8????????           |                     
            //   83c40c               | add                 esp, 0xc
            //   837dfcff             | cmp                 dword ptr [ebp - 4], -1
            //   7441                 | je                  0x43

        $sequence_1 = { bb???????? 6a05 8d73f6 59 8d7de4 f3a5 66a5 }
            // n = 7, score = 400
            //   bb????????           |                     
            //   6a05                 | push                5
            //   8d73f6               | lea                 esi, [ebx - 0xa]
            //   59                   | pop                 ecx
            //   8d7de4               | lea                 edi, [ebp - 0x1c]
            //   f3a5                 | rep movsd           dword ptr es:[edi], dword ptr [esi]
            //   66a5                 | movsw               word ptr es:[edi], word ptr [esi]

        $sequence_2 = { 03f0 03f8 8b45f4 897508 897d0c }
            // n = 5, score = 400
            //   03f0                 | add                 esi, eax
            //   03f8                 | add                 edi, eax
            //   8b45f4               | mov                 eax, dword ptr [ebp - 0xc]
            //   897508               | mov                 dword ptr [ebp + 8], esi
            //   897d0c               | mov                 dword ptr [ebp + 0xc], edi

        $sequence_3 = { 33db 53 ffd6 ff15???????? 3db7000000 }
            // n = 5, score = 400
            //   33db                 | xor                 ebx, ebx
            //   53                   | push                ebx
            //   ffd6                 | call                esi
            //   ff15????????         |                     
            //   3db7000000           | cmp                 eax, 0xb7

        $sequence_4 = { 3bc3 7e39 8d0440 3945fc 7d31 }
            // n = 5, score = 400
            //   3bc3                 | cmp                 eax, ebx
            //   7e39                 | jle                 0x3b
            //   8d0440               | lea                 eax, [eax + eax*2]
            //   3945fc               | cmp                 dword ptr [ebp - 4], eax
            //   7d31                 | jge                 0x33

        $sequence_5 = { 8bf0 6bf616 6a05 81c6???????? 59 8d7dd4 }
            // n = 6, score = 400
            //   8bf0                 | mov                 esi, eax
            //   6bf616               | imul                esi, esi, 0x16
            //   6a05                 | push                5
            //   81c6????????         |                     
            //   59                   | pop                 ecx
            //   8d7dd4               | lea                 edi, [ebp - 0x2c]

        $sequence_6 = { a3???????? 0f8420010000 68???????? ff35???????? }
            // n = 4, score = 400
            //   a3????????           |                     
            //   0f8420010000         | je                  0x126
            //   68????????           |                     
            //   ff35????????         |                     

        $sequence_7 = { 3a5dff 73d8 84db 7594 8a45fb }
            // n = 5, score = 400
            //   3a5dff               | cmp                 bl, byte ptr [ebp - 1]
            //   73d8                 | jae                 0xffffffda
            //   84db                 | test                bl, bl
            //   7594                 | jne                 0xffffff96
            //   8a45fb               | mov                 al, byte ptr [ebp - 5]

        $sequence_8 = { 8d4dc0 c645fc04 e8???????? 8bf0 8d4d90 }
            // n = 5, score = 100
            //   8d4dc0               | lea                 ecx, [ebp - 0x40]
            //   c645fc04             | mov                 byte ptr [ebp - 4], 4
            //   e8????????           |                     
            //   8bf0                 | mov                 esi, eax
            //   8d4d90               | lea                 ecx, [ebp - 0x70]

        $sequence_9 = { 8b4df0 57 ff75e4 e8???????? 8d4df0 }
            // n = 5, score = 100
            //   8b4df0               | mov                 ecx, dword ptr [ebp - 0x10]
            //   57                   | push                edi
            //   ff75e4               | push                dword ptr [ebp - 0x1c]
            //   e8????????           |                     
            //   8d4df0               | lea                 ecx, [ebp - 0x10]

        $sequence_10 = { 8d4dcc e8???????? 8d45ac c645fc01 50 8d4dcc e8???????? }
            // n = 7, score = 100
            //   8d4dcc               | lea                 ecx, [ebp - 0x34]
            //   e8????????           |                     
            //   8d45ac               | lea                 eax, [ebp - 0x54]
            //   c645fc01             | mov                 byte ptr [ebp - 4], 1
            //   50                   | push                eax
            //   8d4dcc               | lea                 ecx, [ebp - 0x34]
            //   e8????????           |                     

        $sequence_11 = { 817848b0d74900 7409 ff7048 e8???????? 59 c70701000000 8bcf }
            // n = 7, score = 100
            //   817848b0d74900       | cmp                 dword ptr [eax + 0x48], 0x49d7b0
            //   7409                 | je                  0xb
            //   ff7048               | push                dword ptr [eax + 0x48]
            //   e8????????           |                     
            //   59                   | pop                 ecx
            //   c70701000000         | mov                 dword ptr [edi], 1
            //   8bcf                 | mov                 ecx, edi

        $sequence_12 = { 8b7508 8d45e0 50 c78508ffffff00000000 ff15???????? }
            // n = 5, score = 100
            //   8b7508               | mov                 esi, dword ptr [ebp + 8]
            //   8d45e0               | lea                 eax, [ebp - 0x20]
            //   50                   | push                eax
            //   c78508ffffff00000000     | mov    dword ptr [ebp - 0xf8], 0
            //   ff15????????         |                     

        $sequence_13 = { c70000000000 8d4c2410 0fb600 50 52 c744241800000000 c744241c00000000 }
            // n = 7, score = 100
            //   c70000000000         | mov                 dword ptr [eax], 0
            //   8d4c2410             | lea                 ecx, [esp + 0x10]
            //   0fb600               | movzx               eax, byte ptr [eax]
            //   50                   | push                eax
            //   52                   | push                edx
            //   c744241800000000     | mov                 dword ptr [esp + 0x18], 0
            //   c744241c00000000     | mov                 dword ptr [esp + 0x1c], 0

        $sequence_14 = { 83c740 83c640 3bfd 72e6 33c9 }
            // n = 5, score = 100
            //   83c740               | add                 edi, 0x40
            //   83c640               | add                 esi, 0x40
            //   3bfd                 | cmp                 edi, ebp
            //   72e6                 | jb                  0xffffffe8
            //   33c9                 | xor                 ecx, ecx

        $sequence_15 = { e8???????? 33c0 c745e800000000 c745ec07000000 668945d8 c745fc03000000 85f6 }
            // n = 7, score = 100
            //   e8????????           |                     
            //   33c0                 | xor                 eax, eax
            //   c745e800000000       | mov                 dword ptr [ebp - 0x18], 0
            //   c745ec07000000       | mov                 dword ptr [ebp - 0x14], 7
            //   668945d8             | mov                 word ptr [ebp - 0x28], ax
            //   c745fc03000000       | mov                 dword ptr [ebp - 4], 3
            //   85f6                 | test                esi, esi

    condition:
        7 of them and filesize < 1417216
}