rule win_mangzamel_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-09-17"
        version = "1"
        description = "Detects win.mangzamel."
        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.mangzamel"
        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 57 57 8d85f0feffff 57 50 6a01 }
            // n = 7, score = 400
            //   57                   | push                edi
            //   57                   | push                edi
            //   57                   | push                edi
            //   8d85f0feffff         | lea                 eax, [ebp - 0x110]
            //   57                   | push                edi
            //   50                   | push                eax
            //   6a01                 | push                1

        $sequence_1 = { 59 84c0 59 7419 6a0c e8???????? 83600400 }
            // n = 7, score = 400
            //   59                   | pop                 ecx
            //   84c0                 | test                al, al
            //   59                   | pop                 ecx
            //   7419                 | je                  0x1b
            //   6a0c                 | push                0xc
            //   e8????????           |                     
            //   83600400             | and                 dword ptr [eax + 4], 0

        $sequence_2 = { 56 8d4f08 8906 e8???????? ff15???????? 89472c 5f }
            // n = 7, score = 400
            //   56                   | push                esi
            //   8d4f08               | lea                 ecx, [edi + 8]
            //   8906                 | mov                 dword ptr [esi], eax
            //   e8????????           |                     
            //   ff15????????         |                     
            //   89472c               | mov                 dword ptr [edi + 0x2c], eax
            //   5f                   | pop                 edi

        $sequence_3 = { 53 ff7508 83cfff e8???????? 8bf0 83c40c 3bf3 }
            // n = 7, score = 400
            //   53                   | push                ebx
            //   ff7508               | push                dword ptr [ebp + 8]
            //   83cfff               | or                  edi, 0xffffffff
            //   e8????????           |                     
            //   8bf0                 | mov                 esi, eax
            //   83c40c               | add                 esp, 0xc
            //   3bf3                 | cmp                 esi, ebx

        $sequence_4 = { 6a01 8bce e8???????? 6a01 8bce e8???????? 33c0 }
            // n = 7, score = 400
            //   6a01                 | push                1
            //   8bce                 | mov                 ecx, esi
            //   e8????????           |                     
            //   6a01                 | push                1
            //   8bce                 | mov                 ecx, esi
            //   e8????????           |                     
            //   33c0                 | xor                 eax, eax

        $sequence_5 = { 8b770c 85f6 740f 8bc6 8b36 ff7008 e8???????? }
            // n = 7, score = 400
            //   8b770c               | mov                 esi, dword ptr [edi + 0xc]
            //   85f6                 | test                esi, esi
            //   740f                 | je                  0x11
            //   8bc6                 | mov                 eax, esi
            //   8b36                 | mov                 esi, dword ptr [esi]
            //   ff7008               | push                dword ptr [eax + 8]
            //   e8????????           |                     

        $sequence_6 = { 56 57 8bf1 6a02 e8???????? 8b06 8bce }
            // n = 7, score = 400
            //   56                   | push                esi
            //   57                   | push                edi
            //   8bf1                 | mov                 esi, ecx
            //   6a02                 | push                2
            //   e8????????           |                     
            //   8b06                 | mov                 eax, dword ptr [esi]
            //   8bce                 | mov                 ecx, esi

        $sequence_7 = { 8bf1 ff742408 e8???????? 83666800 c706???????? 8bc6 }
            // n = 6, score = 400
            //   8bf1                 | mov                 esi, ecx
            //   ff742408             | push                dword ptr [esp + 8]
            //   e8????????           |                     
            //   83666800             | and                 dword ptr [esi + 0x68], 0
            //   c706????????         |                     
            //   8bc6                 | mov                 eax, esi

        $sequence_8 = { 85db 7547 c644241201 eb40 ff15???????? 3d36270000 7422 }
            // n = 7, score = 400
            //   85db                 | test                ebx, ebx
            //   7547                 | jne                 0x49
            //   c644241201           | mov                 byte ptr [esp + 0x12], 1
            //   eb40                 | jmp                 0x42
            //   ff15????????         |                     
            //   3d36270000           | cmp                 eax, 0x2736
            //   7422                 | je                  0x24

        $sequence_9 = { 8b45fc 8b00 8b00 3b4508 740b 8345fc04 47 }
            // n = 7, score = 400
            //   8b45fc               | mov                 eax, dword ptr [ebp - 4]
            //   8b00                 | mov                 eax, dword ptr [eax]
            //   8b00                 | mov                 eax, dword ptr [eax]
            //   3b4508               | cmp                 eax, dword ptr [ebp + 8]
            //   740b                 | je                  0xd
            //   8345fc04             | add                 dword ptr [ebp - 4], 4
            //   47                   | inc                 edi

    condition:
        7 of them and filesize < 360448
}