rule win_slub_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2023-01-25"
        version = "1"
        description = "Detects win.slub."
        info = "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.slub"
        malpedia_rule_date = "20230124"
        malpedia_hash = "2ee0eebba83dce3d019a90519f2f972c0fcf9686"
        malpedia_version = "20230125"
        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 = { 50 e8???????? 6a01 6a00 c645fc08 8bcf 8b7710 }
            // n = 7, score = 100
            //   50                   | push                eax
            //   e8????????           |                     
            //   6a01                 | push                1
            //   6a00                 | push                0
            //   c645fc08             | mov                 byte ptr [ebp - 4], 8
            //   8bcf                 | mov                 ecx, edi
            //   8b7710               | mov                 esi, dword ptr [edi + 0x10]

        $sequence_1 = { c7402400000000 8b44241c 3d12030900 7511 c783f401000002000000 33c0 e9???????? }
            // n = 7, score = 100
            //   c7402400000000       | mov                 dword ptr [eax + 0x24], 0
            //   8b44241c             | mov                 eax, dword ptr [esp + 0x1c]
            //   3d12030900           | cmp                 eax, 0x90312
            //   7511                 | jne                 0x13
            //   c783f401000002000000     | mov    dword ptr [ebx + 0x1f4], 2
            //   33c0                 | xor                 eax, eax
            //   e9????????           |                     

        $sequence_2 = { 57 8b7d08 8bf3 8a07 3a86f0528f00 7408 3a86f8528f00 }
            // n = 7, score = 100
            //   57                   | push                edi
            //   8b7d08               | mov                 edi, dword ptr [ebp + 8]
            //   8bf3                 | mov                 esi, ebx
            //   8a07                 | mov                 al, byte ptr [edi]
            //   3a86f0528f00         | cmp                 al, byte ptr [esi + 0x8f52f0]
            //   7408                 | je                  0xa
            //   3a86f8528f00         | cmp                 al, byte ptr [esi + 0x8f52f8]

        $sequence_3 = { 0f43c2 8bd0 80fb30 7ddf 8b4648 5f 5e }
            // n = 7, score = 100
            //   0f43c2               | cmovae              eax, edx
            //   8bd0                 | mov                 edx, eax
            //   80fb30               | cmp                 bl, 0x30
            //   7ddf                 | jge                 0xffffffe1
            //   8b4648               | mov                 eax, dword ptr [esi + 0x48]
            //   5f                   | pop                 edi
            //   5e                   | pop                 esi

        $sequence_4 = { 52 50 e8???????? 8bcf 898580f8ffff 899584f8ffff }
            // n = 6, score = 100
            //   52                   | push                edx
            //   50                   | push                eax
            //   e8????????           |                     
            //   8bcf                 | mov                 ecx, edi
            //   898580f8ffff         | mov                 dword ptr [ebp - 0x780], eax
            //   899584f8ffff         | mov                 dword ptr [ebp - 0x77c], edx

        $sequence_5 = { 53 8b08 83c110 e8???????? 84c0 7427 8b45ec }
            // n = 7, score = 100
            //   53                   | push                ebx
            //   8b08                 | mov                 ecx, dword ptr [eax]
            //   83c110               | add                 ecx, 0x10
            //   e8????????           |                     
            //   84c0                 | test                al, al
            //   7427                 | je                  0x29
            //   8b45ec               | mov                 eax, dword ptr [ebp - 0x14]

        $sequence_6 = { eb0a 3c04 b916000000 0f44d9 83bfc005000000 753e 83fb0a }
            // n = 7, score = 100
            //   eb0a                 | jmp                 0xc
            //   3c04                 | cmp                 al, 4
            //   b916000000           | mov                 ecx, 0x16
            //   0f44d9               | cmove               ebx, ecx
            //   83bfc005000000       | cmp                 dword ptr [edi + 0x5c0], 0
            //   753e                 | jne                 0x40
            //   83fb0a               | cmp                 ebx, 0xa

        $sequence_7 = { 45 5c 8600 59 5c 8600 d15c8600 }
            // n = 7, score = 100
            //   45                   | inc                 ebp
            //   5c                   | pop                 esp
            //   8600                 | xchg                byte ptr [eax], al
            //   59                   | pop                 ecx
            //   5c                   | pop                 esp
            //   8600                 | xchg                byte ptr [eax], al
            //   d15c8600             | rcr                 dword ptr [esi + eax*4], 1

        $sequence_8 = { 3945c8 7406 837dc400 740c c70702000000 c70100000000 8d4514 }
            // n = 7, score = 100
            //   3945c8               | cmp                 dword ptr [ebp - 0x38], eax
            //   7406                 | je                  8
            //   837dc400             | cmp                 dword ptr [ebp - 0x3c], 0
            //   740c                 | je                  0xe
            //   c70702000000         | mov                 dword ptr [edi], 2
            //   c70100000000         | mov                 dword ptr [ecx], 0
            //   8d4514               | lea                 eax, [ebp + 0x14]

        $sequence_9 = { 8bec 56 8b7508 8b4608 85c0 7410 fe8808bc9000 }
            // n = 7, score = 100
            //   8bec                 | mov                 ebp, esp
            //   56                   | push                esi
            //   8b7508               | mov                 esi, dword ptr [ebp + 8]
            //   8b4608               | mov                 eax, dword ptr [esi + 8]
            //   85c0                 | test                eax, eax
            //   7410                 | je                  0x12
            //   fe8808bc9000         | dec                 byte ptr [eax + 0x90bc08]

    condition:
        7 of them and filesize < 1785856
}