rule win_adhubllka_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-09-17"
        version = "1"
        description = "Detects win.adhubllka."
        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.adhubllka"
        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 = { 83c740 660fefc8 0f1149d0 3b7df4 72a5 8b5310 8bcf }
            // n = 7, score = 500
            //   83c740               | add                 edi, 0x40
            //   660fefc8             | pxor                xmm1, xmm0
            //   0f1149d0             | movups              xmmword ptr [ecx - 0x30], xmm1
            //   3b7df4               | cmp                 edi, dword ptr [ebp - 0xc]
            //   72a5                 | jb                  0xffffffa7
            //   8b5310               | mov                 edx, dword ptr [ebx + 0x10]
            //   8bcf                 | mov                 ecx, edi

        $sequence_1 = { ffd7 83f8ff 740c 50 }
            // n = 4, score = 500
            //   ffd7                 | call                edi
            //   83f8ff               | cmp                 eax, -1
            //   740c                 | je                  0xe
            //   50                   | push                eax

        $sequence_2 = { 3d000f0000 8b45d4 0f94c1 c1e808 0fb6c0 890d???????? c1e003 }
            // n = 7, score = 500
            //   3d000f0000           | cmp                 eax, 0xf00
            //   8b45d4               | mov                 eax, dword ptr [ebp - 0x2c]
            //   0f94c1               | sete                cl
            //   c1e808               | shr                 eax, 8
            //   0fb6c0               | movzx               eax, al
            //   890d????????         |                     
            //   c1e003               | shl                 eax, 3

        $sequence_3 = { 394508 7c1f 3934bd68b34100 7531 e8???????? 8904bd68b34100 85c0 }
            // n = 7, score = 500
            //   394508               | cmp                 dword ptr [ebp + 8], eax
            //   7c1f                 | jl                  0x21
            //   3934bd68b34100       | cmp                 dword ptr [edi*4 + 0x41b368], esi
            //   7531                 | jne                 0x33
            //   e8????????           |                     
            //   8904bd68b34100       | mov                 dword ptr [edi*4 + 0x41b368], eax
            //   85c0                 | test                eax, eax

        $sequence_4 = { 660fefc8 0f1149d0 3b7df4 72a5 8b5310 8bcf }
            // n = 6, score = 500
            //   660fefc8             | pxor                xmm1, xmm0
            //   0f1149d0             | movups              xmmword ptr [ecx - 0x30], xmm1
            //   3b7df4               | cmp                 edi, dword ptr [ebp - 0xc]
            //   72a5                 | jb                  0xffffffa7
            //   8b5310               | mov                 edx, dword ptr [ebx + 0x10]
            //   8bcf                 | mov                 ecx, edi

        $sequence_5 = { 8b45a0 8b4da8 03c7 56 }
            // n = 4, score = 500
            //   8b45a0               | mov                 eax, dword ptr [ebp - 0x60]
            //   8b4da8               | mov                 ecx, dword ptr [ebp - 0x58]
            //   03c7                 | add                 eax, edi
            //   56                   | push                esi

        $sequence_6 = { 7ce6 8b45f4 8b7df8 8b4dd0 8b75e8 8b55ec 8b5dd4 }
            // n = 7, score = 500
            //   7ce6                 | jl                  0xffffffe8
            //   8b45f4               | mov                 eax, dword ptr [ebp - 0xc]
            //   8b7df8               | mov                 edi, dword ptr [ebp - 8]
            //   8b4dd0               | mov                 ecx, dword ptr [ebp - 0x30]
            //   8b75e8               | mov                 esi, dword ptr [ebp - 0x18]
            //   8b55ec               | mov                 edx, dword ptr [ebp - 0x14]
            //   8b5dd4               | mov                 ebx, dword ptr [ebp - 0x2c]

        $sequence_7 = { 83e801 0f8539010000 c745e4f4724100 8b4508 8bcf 8b7510 c745e004000000 }
            // n = 7, score = 500
            //   83e801               | sub                 eax, 1
            //   0f8539010000         | jne                 0x13f
            //   c745e4f4724100       | mov                 dword ptr [ebp - 0x1c], 0x4172f4
            //   8b4508               | mov                 eax, dword ptr [ebp + 8]
            //   8bcf                 | mov                 ecx, edi
            //   8b7510               | mov                 esi, dword ptr [ebp + 0x10]
            //   c745e004000000       | mov                 dword ptr [ebp - 0x20], 4

        $sequence_8 = { 660fefe8 660f38002d???????? 0f29ad30ffffff 0f28c5 660ffec3 }
            // n = 5, score = 500
            //   660fefe8             | pxor                xmm5, xmm0
            //   660f38002d????????     |     
            //   0f29ad30ffffff       | movaps              xmmword ptr [ebp - 0xd0], xmm5
            //   0f28c5               | movaps              xmm0, xmm5
            //   660ffec3             | paddd               xmm0, xmm3

        $sequence_9 = { 8b4de0 8bf0 3375b0 c1c610 03ce 8bf9 337db4 }
            // n = 7, score = 500
            //   8b4de0               | mov                 ecx, dword ptr [ebp - 0x20]
            //   8bf0                 | mov                 esi, eax
            //   3375b0               | xor                 esi, dword ptr [ebp - 0x50]
            //   c1c610               | rol                 esi, 0x10
            //   03ce                 | add                 ecx, esi
            //   8bf9                 | mov                 edi, ecx
            //   337db4               | xor                 edi, dword ptr [ebp - 0x4c]

    condition:
        7 of them and filesize < 253952
}