rule win_minipocket_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-09-17"
        version = "1"
        description = "Detects win.minipocket."
        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.minipocket"
        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 = { 488bcb ff15???????? 83c0fc 83f83b }
            // n = 4, score = 100
            //   488bcb               | dec                 esp
            //   ff15????????         |                     
            //   83c0fc               | mov                 ecx, ecx
            //   83f83b               | mov                 ebp, edx

        $sequence_1 = { 456bc021 4403c0 ffc7 8bc7 8a0417 84c0 75eb }
            // n = 7, score = 100
            //   456bc021             | dec                 eax
            //   4403c0               | mov                 eax, dword ptr [0x60]
            //   ffc7                 | inc                 esp
            //   8bc7                 | mov                 edx, edx
            //   8a0417               | inc                 esp
            //   84c0                 | mov                 ebx, ecx
            //   75eb                 | xor                 ebx, ebx

        $sequence_2 = { 488bcb ff15???????? 83c0fc 83f83b 0f87ba000000 8b7df0 }
            // n = 6, score = 100
            //   488bcb               | inc                 ebp
            //   ff15????????         |                     
            //   83c0fc               | xor                 ecx, ecx
            //   83f83b               | inc                 esp
            //   0f87ba000000         | lea                 eax, [eax + 0x40]
            //   8b7df0               | dec                 eax

        $sequence_3 = { 83c0fc 83f83b 0f87ba000000 8b7df0 }
            // n = 4, score = 100
            //   83c0fc               | dec                 eax
            //   83f83b               | cmp                 eax, -1
            //   0f87ba000000         | je                  0x12c
            //   8b7df0               | dec                 eax

        $sequence_4 = { e8???????? ba18000000 c7458068000000 488d4c2460 c745bc01010000 48895de0 }
            // n = 6, score = 100
            //   e8????????           |                     
            //   ba18000000           | cmp                 edx, edx
            //   c7458068000000       | je                  0x8a
            //   488d4c2460           | dec                 ebp
            //   c745bc01010000       | mov                 eax, dword ptr [eax]
            //   48895de0             | dec                 ebp

        $sequence_5 = { 8bea 448b840888000000 4c03c1 458b5020 458b5824 4c03d1 418b581c }
            // n = 7, score = 100
            //   8bea                 | je                  0x65f
            //   448b840888000000     | mov                 eax, edi
            //   4c03c1               | mov                 edx, edi
            //   458b5020             | mov                 ecx, edi
            //   458b5824             | xor                 eax, 0x65001807
            //   4c03d1               | xor                 edx, 0x8bfe031
            //   418b581c             | xor                 ecx, 0x15249b11

        $sequence_6 = { 83f83b 0f87ba000000 8b7df0 8bc7 }
            // n = 4, score = 100
            //   83f83b               | and                 dword ptr [esp + 0x30], 0
            //   0f87ba000000         | dec                 eax
            //   8b7df0               | mov                 edi, eax
            //   8bc7                 | dec                 eax

        $sequence_7 = { 6bd221 03d0 ffc1 8bc1 }
            // n = 4, score = 100
            //   6bd221               | mov                 dword ptr [ebp - 0x28], ebx
            //   03d0                 | dec                 eax
            //   ffc1                 | mov                 dword ptr [ebp - 0x30], ebx
            //   8bc1                 | dec                 eax

        $sequence_8 = { 48895c2410 48897c2418 55 488dac2430feffff }
            // n = 4, score = 100
            //   48895c2410           | lea                 eax, [eax + 6]
            //   48897c2418           | mov                 dword ptr [esp + 0x54], 0x5a9e4692
            //   55                   | inc                 ebp
            //   488dac2430feffff     | imul                eax, eax, 0x21

        $sequence_9 = { ba18000000 c7458068000000 488d4c2460 c745bc01010000 48895de0 48895dd8 }
            // n = 6, score = 100
            //   ba18000000           | mov                 al, byte ptr [edx]
            //   c7458068000000       | jmp                 0xc9
            //   488d4c2460           | movsx               eax, al
            //   c745bc01010000       | inc                 ebp
            //   48895de0             | imul                eax, eax, 0x21
            //   48895dd8             | inc                 esp

    condition:
        7 of them and filesize < 34816
}