rule win_allaple_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-09-17"
        version = "1"
        description = "Detects win.allaple."
        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.allaple"
        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 = { 57 ff15???????? 8bf0 3bc7 7447 baa7010000 57 }
            // n = 7, score = 300
            //   57                   | push                edi
            //   ff15????????         |                     
            //   8bf0                 | mov                 esi, eax
            //   3bc7                 | cmp                 eax, edi
            //   7447                 | je                  0x49
            //   baa7010000           | mov                 edx, 0x1a7
            //   57                   | push                edi

        $sequence_1 = { 8b55f8 894a04 8b45fc 8b4808 334df4 8b55f8 894a08 }
            // n = 7, score = 300
            //   8b55f8               | mov                 edx, dword ptr [ebp - 8]
            //   894a04               | mov                 dword ptr [edx + 4], ecx
            //   8b45fc               | mov                 eax, dword ptr [ebp - 4]
            //   8b4808               | mov                 ecx, dword ptr [eax + 8]
            //   334df4               | xor                 ecx, dword ptr [ebp - 0xc]
            //   8b55f8               | mov                 edx, dword ptr [ebp - 8]
            //   894a08               | mov                 dword ptr [edx + 8], ecx

        $sequence_2 = { c645f60a c645f73d c745f800000000 eb09 8b45f8 83c001 8945f8 }
            // n = 7, score = 300
            //   c645f60a             | mov                 byte ptr [ebp - 0xa], 0xa
            //   c645f73d             | mov                 byte ptr [ebp - 9], 0x3d
            //   c745f800000000       | mov                 dword ptr [ebp - 8], 0
            //   eb09                 | jmp                 0xb
            //   8b45f8               | mov                 eax, dword ptr [ebp - 8]
            //   83c001               | add                 eax, 1
            //   8945f8               | mov                 dword ptr [ebp - 8], eax

        $sequence_3 = { 0345d8 50 e8???????? 83c408 a3???????? 6a03 ff35???????? }
            // n = 7, score = 300
            //   0345d8               | add                 eax, dword ptr [ebp - 0x28]
            //   50                   | push                eax
            //   e8????????           |                     
            //   83c408               | add                 esp, 8
            //   a3????????           |                     
            //   6a03                 | push                3
            //   ff35????????         |                     

        $sequence_4 = { 83c71b ff7510 ff750c 57 e8???????? 037d10 6a0a }
            // n = 7, score = 300
            //   83c71b               | add                 edi, 0x1b
            //   ff7510               | push                dword ptr [ebp + 0x10]
            //   ff750c               | push                dword ptr [ebp + 0xc]
            //   57                   | push                edi
            //   e8????????           |                     
            //   037d10               | add                 edi, dword ptr [ebp + 0x10]
            //   6a0a                 | push                0xa

        $sequence_5 = { 8b0cb8 8b0478 d3c0 8b4d10 0fb65104 0fb64903 83fa01 }
            // n = 7, score = 300
            //   8b0cb8               | mov                 ecx, dword ptr [eax + edi*4]
            //   8b0478               | mov                 eax, dword ptr [eax + edi*2]
            //   d3c0                 | rol                 eax, cl
            //   8b4d10               | mov                 ecx, dword ptr [ebp + 0x10]
            //   0fb65104             | movzx               edx, byte ptr [ecx + 4]
            //   0fb64903             | movzx               ecx, byte ptr [ecx + 3]
            //   83fa01               | cmp                 edx, 1

        $sequence_6 = { ffb5b4fdffff e8???????? e9???????? 8b95b4fdffff 8d8a8a010000 c785b8fdffff00000000 80790a30 }
            // n = 7, score = 300
            //   ffb5b4fdffff         | push                dword ptr [ebp - 0x24c]
            //   e8????????           |                     
            //   e9????????           |                     
            //   8b95b4fdffff         | mov                 edx, dword ptr [ebp - 0x24c]
            //   8d8a8a010000         | lea                 ecx, [edx + 0x18a]
            //   c785b8fdffff00000000     | mov    dword ptr [ebp - 0x248], 0
            //   80790a30             | cmp                 byte ptr [ecx + 0xa], 0x30

        $sequence_7 = { 6802000080 e8???????? 3bc7 7524 6804010000 8d8500feffff 50 }
            // n = 7, score = 300
            //   6802000080           | push                0x80000002
            //   e8????????           |                     
            //   3bc7                 | cmp                 eax, edi
            //   7524                 | jne                 0x26
            //   6804010000           | push                0x104
            //   8d8500feffff         | lea                 eax, [ebp - 0x200]
            //   50                   | push                eax

        $sequence_8 = { e8???????? 0bc0 0f8537ffffff 53 e8???????? 56 e8???????? }
            // n = 7, score = 300
            //   e8????????           |                     
            //   0bc0                 | or                  eax, eax
            //   0f8537ffffff         | jne                 0xffffff3d
            //   53                   | push                ebx
            //   e8????????           |                     
            //   56                   | push                esi
            //   e8????????           |                     

        $sequence_9 = { c785c8fdffff00000000 eb0f 8b85c8fdffff 83c002 8985c8fdffff 81bdc8fdffff00010000 0f8d93000000 }
            // n = 7, score = 300
            //   c785c8fdffff00000000     | mov    dword ptr [ebp - 0x238], 0
            //   eb0f                 | jmp                 0x11
            //   8b85c8fdffff         | mov                 eax, dword ptr [ebp - 0x238]
            //   83c002               | add                 eax, 2
            //   8985c8fdffff         | mov                 dword ptr [ebp - 0x238], eax
            //   81bdc8fdffff00010000     | cmp    dword ptr [ebp - 0x238], 0x100
            //   0f8d93000000         | jge                 0x99

    condition:
        7 of them and filesize < 253952
}