rule win_zeus_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.zeus"
        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 = { eb58 833f00 7651 8b5f08 }
            // n = 4, score = 600
            //   eb58                 | jmp                 0x5a
            //   833f00               | cmp                 dword ptr [edi], 0
            //   7651                 | jbe                 0x53
            //   8b5f08               | mov                 ebx, dword ptr [edi + 8]

        $sequence_1 = { 6801000080 ff15???????? eb1e 50 33c0 }
            // n = 5, score = 500
            //   6801000080           | push                0x80000001
            //   ff15????????         |                     
            //   eb1e                 | jmp                 0x20
            //   50                   | push                eax
            //   33c0                 | xor                 eax, eax

        $sequence_2 = { 8bc7 50 6a04 5f bb14270000 8bc6 }
            // n = 6, score = 500
            //   8bc7                 | mov                 eax, edi
            //   50                   | push                eax
            //   6a04                 | push                4
            //   5f                   | pop                 edi
            //   bb14270000           | mov                 ebx, 0x2714
            //   8bc6                 | mov                 eax, esi

        $sequence_3 = { 8b4020 eb06 8b4814 8b4018 }
            // n = 4, score = 500
            //   8b4020               | mov                 eax, dword ptr [eax + 0x20]
            //   eb06                 | jmp                 8
            //   8b4814               | mov                 ecx, dword ptr [eax + 0x14]
            //   8b4018               | mov                 eax, dword ptr [eax + 0x18]

        $sequence_4 = { 8bf3 6810270000 ff35???????? ff15???????? }
            // n = 4, score = 500
            //   8bf3                 | mov                 esi, ebx
            //   6810270000           | push                0x2710
            //   ff35????????         |                     
            //   ff15????????         |                     

        $sequence_5 = { e8???????? 84c0 7442 6a10 }
            // n = 4, score = 500
            //   e8????????           |                     
            //   84c0                 | test                al, al
            //   7442                 | je                  0x44
            //   6a10                 | push                0x10

        $sequence_6 = { c9 c3 6a1c 58 e8???????? 85c0 7406 }
            // n = 7, score = 500
            //   c9                   | leave               
            //   c3                   | ret                 
            //   6a1c                 | push                0x1c
            //   58                   | pop                 eax
            //   e8????????           |                     
            //   85c0                 | test                eax, eax
            //   7406                 | je                  8

        $sequence_7 = { 7626 8b45f8 8b7314 e8???????? ff75f8 8bf0 e8???????? }
            // n = 7, score = 500
            //   7626                 | jbe                 0x28
            //   8b45f8               | mov                 eax, dword ptr [ebp - 8]
            //   8b7314               | mov                 esi, dword ptr [ebx + 0x14]
            //   e8????????           |                     
            //   ff75f8               | push                dword ptr [ebp - 8]
            //   8bf0                 | mov                 esi, eax
            //   e8????????           |                     

        $sequence_8 = { 3b750c 72da 32c0 5f 5e 5b c9 }
            // n = 7, score = 500
            //   3b750c               | cmp                 esi, dword ptr [ebp + 0xc]
            //   72da                 | jb                  0xffffffdc
            //   32c0                 | xor                 al, al
            //   5f                   | pop                 edi
            //   5e                   | pop                 esi
            //   5b                   | pop                 ebx
            //   c9                   | leave               

        $sequence_9 = { ff750c 8d4702 ff7508 c6443a0100 e8???????? }
            // n = 5, score = 500
            //   ff750c               | push                dword ptr [ebp + 0xc]
            //   8d4702               | lea                 eax, [edi + 2]
            //   ff7508               | push                dword ptr [ebp + 8]
            //   c6443a0100           | mov                 byte ptr [edx + edi + 1], 0
            //   e8????????           |                     

        $sequence_10 = { 8d85ecfbffff 50 68f6000000 33db ff15???????? }
            // n = 5, score = 400
            //   8d85ecfbffff         | lea                 eax, [ebp - 0x414]
            //   50                   | push                eax
            //   68f6000000           | push                0xf6
            //   33db                 | xor                 ebx, ebx
            //   ff15????????         |                     

        $sequence_11 = { 8d8db0fdffff e8???????? 8ad8 84db }
            // n = 4, score = 400
            //   8d8db0fdffff         | lea                 ecx, [ebp - 0x250]
            //   e8????????           |                     
            //   8ad8                 | mov                 bl, al
            //   84db                 | test                bl, bl

        $sequence_12 = { 8bec 81ec18040000 53 8d85ecfbffff 50 }
            // n = 5, score = 400
            //   8bec                 | mov                 ebp, esp
            //   81ec18040000         | sub                 esp, 0x418
            //   53                   | push                ebx
            //   8d85ecfbffff         | lea                 eax, [ebp - 0x414]
            //   50                   | push                eax

        $sequence_13 = { 8ac3 5b c9 c20c00 55 8bec 81ec18040000 }
            // n = 7, score = 400
            //   8ac3                 | mov                 al, bl
            //   5b                   | pop                 ebx
            //   c9                   | leave               
            //   c20c00               | ret                 0xc
            //   55                   | push                ebp
            //   8bec                 | mov                 ebp, esp
            //   81ec18040000         | sub                 esp, 0x418

        $sequence_14 = { 53 83c8ff 8d4dd8 e8???????? 6a0a }
            // n = 5, score = 200
            //   53                   | push                ebx
            //   83c8ff               | or                  eax, 0xffffffff
            //   8d4dd8               | lea                 ecx, [ebp - 0x28]
            //   e8????????           |                     
            //   6a0a                 | push                0xa

        $sequence_15 = { 0f82ec000000 8b1b 81f309080002 81fb5d515047 7410 81fb4f4d4156 7408 }
            // n = 7, score = 200
            //   0f82ec000000         | jb                  0xf2
            //   8b1b                 | mov                 ebx, dword ptr [ebx]
            //   81f309080002         | xor                 ebx, 0x2000809
            //   81fb5d515047         | cmp                 ebx, 0x4750515d
            //   7410                 | je                  0x12
            //   81fb4f4d4156         | cmp                 ebx, 0x56414d4f
            //   7408                 | je                  0xa

        $sequence_16 = { 8b03 3509080002 3d5c5b4550 740b 3d59495351 }
            // n = 5, score = 200
            //   8b03                 | mov                 eax, dword ptr [ebx]
            //   3509080002           | xor                 eax, 0x2000809
            //   3d5c5b4550           | cmp                 eax, 0x50455b5c
            //   740b                 | je                  0xd
            //   3d59495351           | cmp                 eax, 0x51534959

        $sequence_17 = { 81fb5a5c4156 740c 81fb45415356 0f85b2000000 b365 6a15 8d742418 }
            // n = 7, score = 200
            //   81fb5a5c4156         | cmp                 ebx, 0x56415c5a
            //   740c                 | je                  0xe
            //   81fb45415356         | cmp                 ebx, 0x56534145
            //   0f85b2000000         | jne                 0xb8
            //   b365                 | mov                 bl, 0x65
            //   6a15                 | push                0x15
            //   8d742418             | lea                 esi, [esp + 0x18]

        $sequence_18 = { 50 c707000e0000 c7470809080002 e8???????? }
            // n = 4, score = 200
            //   50                   | push                eax
            //   c707000e0000         | mov                 dword ptr [edi], 0xe00
            //   c7470809080002       | mov                 dword ptr [edi + 8], 0x2000809
            //   e8????????           |                     

        $sequence_19 = { 7415 8bcf 6bc90c bea8234200 }
            // n = 4, score = 200
            //   7415                 | je                  0x17
            //   8bcf                 | mov                 ecx, edi
            //   6bc90c               | imul                ecx, ecx, 0xc
            //   bea8234200           | mov                 esi, 0x4223a8

        $sequence_20 = { 6bc90c bea8234200 e8???????? 84c0 741d 8b3d???????? }
            // n = 6, score = 200
            //   6bc90c               | imul                ecx, ecx, 0xc
            //   bea8234200           | mov                 esi, 0x4223a8
            //   e8????????           |                     
            //   84c0                 | test                al, al
            //   741d                 | je                  0x1f
            //   8b3d????????         |                     

        $sequence_21 = { 6801440000 33f6 56 68b0154000 c645fb00 }
            // n = 5, score = 200
            //   6801440000           | push                0x4401
            //   33f6                 | xor                 esi, esi
            //   56                   | push                esi
            //   68b0154000           | push                0x4015b0
            //   c645fb00             | mov                 byte ptr [ebp - 5], 0

        $sequence_22 = { 68ac234200 ff15???????? ff7508 e8???????? }
            // n = 4, score = 200
            //   68ac234200           | push                0x4223ac
            //   ff15????????         |                     
            //   ff7508               | push                dword ptr [ebp + 8]
            //   e8????????           |                     

    condition:
        7 of them
}