rule win_slub_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-09-17"
        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 = "20260916"
        malpedia_hash = "53a643781c18e08f4a50949af60172d837a0b6f6"
        malpedia_version = "20260917"
        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 = { 03442424 52 50 6a04 53 e8???????? 8b542430 }
            // n = 7, score = 100
            //   03442424             | add                 eax, dword ptr [esp + 0x24]
            //   52                   | push                edx
            //   50                   | push                eax
            //   6a04                 | push                4
            //   53                   | push                ebx
            //   e8????????           |                     
            //   8b542430             | mov                 edx, dword ptr [esp + 0x30]

        $sequence_1 = { f30f7e4530 660fd64630 ff15???????? 83c424 8bee 89742428 8b36 }
            // n = 7, score = 100
            //   f30f7e4530           | movq                xmm0, qword ptr [ebp + 0x30]
            //   660fd64630           | movq                qword ptr [esi + 0x30], xmm0
            //   ff15????????         |                     
            //   83c424               | add                 esp, 0x24
            //   8bee                 | mov                 ebp, esi
            //   89742428             | mov                 dword ptr [esp + 0x28], esi
            //   8b36                 | mov                 esi, dword ptr [esi]

        $sequence_2 = { 8d4dc0 e9???????? 8d8de0feffff e9???????? 8d4de0 e9???????? 8b542408 }
            // n = 7, score = 100
            //   8d4dc0               | lea                 ecx, [ebp - 0x40]
            //   e9????????           |                     
            //   8d8de0feffff         | lea                 ecx, [ebp - 0x120]
            //   e9????????           |                     
            //   8d4de0               | lea                 ecx, [ebp - 0x20]
            //   e9????????           |                     
            //   8b542408             | mov                 edx, dword ptr [esp + 8]

        $sequence_3 = { 33ff 0f1000 8bc7 5f 0f118688010000 5e 5d }
            // n = 7, score = 100
            //   33ff                 | xor                 edi, edi
            //   0f1000               | movups              xmm0, xmmword ptr [eax]
            //   8bc7                 | mov                 eax, edi
            //   5f                   | pop                 edi
            //   0f118688010000       | movups              xmmword ptr [esi + 0x188], xmm0
            //   5e                   | pop                 esi
            //   5d                   | pop                 ebp

        $sequence_4 = { 03348570c59000 f6462d01 7414 e8???????? c70016000000 e8???????? 32c0 }
            // n = 7, score = 100
            //   03348570c59000       | add                 esi, dword ptr [eax*4 + 0x90c570]
            //   f6462d01             | test                byte ptr [esi + 0x2d], 1
            //   7414                 | je                  0x16
            //   e8????????           |                     
            //   c70016000000         | mov                 dword ptr [eax], 0x16
            //   e8????????           |                     
            //   32c0                 | xor                 al, al

        $sequence_5 = { 8b87b0000000 eb06 8b879c000000 ffb7f8000000 89442420 50 57 }
            // n = 7, score = 100
            //   8b87b0000000         | mov                 eax, dword ptr [edi + 0xb0]
            //   eb06                 | jmp                 8
            //   8b879c000000         | mov                 eax, dword ptr [edi + 0x9c]
            //   ffb7f8000000         | push                dword ptr [edi + 0xf8]
            //   89442420             | mov                 dword ptr [esp + 0x20], eax
            //   50                   | push                eax
            //   57                   | push                edi

        $sequence_6 = { 8b436c 85c0 7409 f60010 0f8516010000 56 33f6 }
            // n = 7, score = 100
            //   8b436c               | mov                 eax, dword ptr [ebx + 0x6c]
            //   85c0                 | test                eax, eax
            //   7409                 | je                  0xb
            //   f60010               | test                byte ptr [eax], 0x10
            //   0f8516010000         | jne                 0x11c
            //   56                   | push                esi
            //   33f6                 | xor                 esi, esi

        $sequence_7 = { 750d 83fa10 8d45c8 0f43c3 3a08 7c16 8b4584 }
            // n = 7, score = 100
            //   750d                 | jne                 0xf
            //   83fa10               | cmp                 edx, 0x10
            //   8d45c8               | lea                 eax, [ebp - 0x38]
            //   0f43c3               | cmovae              eax, ebx
            //   3a08                 | cmp                 cl, byte ptr [eax]
            //   7c16                 | jl                  0x18
            //   8b4584               | mov                 eax, dword ptr [ebp - 0x7c]

        $sequence_8 = { 83c408 8bf0 e9???????? 0fbe0a c1f907 0f1f8000000000 0fb602 }
            // n = 7, score = 100
            //   83c408               | add                 esp, 8
            //   8bf0                 | mov                 esi, eax
            //   e9????????           |                     
            //   0fbe0a               | movsx               ecx, byte ptr [edx]
            //   c1f907               | sar                 ecx, 7
            //   0f1f8000000000       | nop                 dword ptr [eax]
            //   0fb602               | movzx               eax, byte ptr [edx]

        $sequence_9 = { 5d c20800 51 c701???????? 8bc1 c7411400000000 c741180f000000 }
            // n = 7, score = 100
            //   5d                   | pop                 ebp
            //   c20800               | ret                 8
            //   51                   | push                ecx
            //   c701????????         |                     
            //   8bc1                 | mov                 eax, ecx
            //   c7411400000000       | mov                 dword ptr [ecx + 0x14], 0
            //   c741180f000000       | mov                 dword ptr [ecx + 0x18], 0xf

    condition:
        7 of them and filesize < 1785856
}