rule win_mangzamel_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-05-04"
        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 = "20260422"
        malpedia_hash = "a182e35da64e6d71cb55f125c4d4225196523f14"
        malpedia_version = "20260504"
        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 = { 85f6 7419 8d4e10 e8???????? 8d8e24010000 c645fc01 e8???????? }
            // n = 7, score = 400
            //   85f6                 | test                esi, esi
            //   7419                 | je                  0x1b
            //   8d4e10               | lea                 ecx, [esi + 0x10]
            //   e8????????           |                     
            //   8d8e24010000         | lea                 ecx, [esi + 0x124]
            //   c645fc01             | mov                 byte ptr [ebp - 4], 1
            //   e8????????           |                     

        $sequence_1 = { ff7508 e8???????? eb12 8b5510 899188000000 8b5514 }
            // n = 6, score = 400
            //   ff7508               | push                dword ptr [ebp + 8]
            //   e8????????           |                     
            //   eb12                 | jmp                 0x14
            //   8b5510               | mov                 edx, dword ptr [ebp + 0x10]
            //   899188000000         | mov                 dword ptr [ecx + 0x88], edx
            //   8b5514               | mov                 edx, dword ptr [ebp + 0x14]

        $sequence_2 = { c3 55 8bec 51 51 8b510c 8365f800 }
            // n = 7, score = 400
            //   c3                   | ret                 
            //   55                   | push                ebp
            //   8bec                 | mov                 ebp, esp
            //   51                   | push                ecx
            //   51                   | push                ecx
            //   8b510c               | mov                 edx, dword ptr [ecx + 0xc]
            //   8365f800             | and                 dword ptr [ebp - 8], 0

        $sequence_3 = { 8bce ff5020 33c0 50 50 50 }
            // n = 6, score = 400
            //   8bce                 | mov                 ecx, esi
            //   ff5020               | call                dword ptr [eax + 0x20]
            //   33c0                 | xor                 eax, eax
            //   50                   | push                eax
            //   50                   | push                eax
            //   50                   | push                eax

        $sequence_4 = { 84c0 7406 46 3b75f8 72f1 }
            // n = 5, score = 400
            //   84c0                 | test                al, al
            //   7406                 | je                  8
            //   46                   | inc                 esi
            //   3b75f8               | cmp                 esi, dword ptr [ebp - 8]
            //   72f1                 | jb                  0xfffffff3

        $sequence_5 = { 8b4483fc ff36 8078012d 751b ff33 a1???????? 83c040 }
            // n = 7, score = 400
            //   8b4483fc             | mov                 eax, dword ptr [ebx + eax*4 - 4]
            //   ff36                 | push                dword ptr [esi]
            //   8078012d             | cmp                 byte ptr [eax + 1], 0x2d
            //   751b                 | jne                 0x1d
            //   ff33                 | push                dword ptr [ebx]
            //   a1????????           |                     
            //   83c040               | add                 eax, 0x40

        $sequence_6 = { 5b c9 c21000 55 8bec 51 8065ff00 }
            // n = 7, score = 400
            //   5b                   | pop                 ebx
            //   c9                   | leave               
            //   c21000               | ret                 0x10
            //   55                   | push                ebp
            //   8bec                 | mov                 ebp, esp
            //   51                   | push                ecx
            //   8065ff00             | and                 byte ptr [ebp - 1], 0

        $sequence_7 = { ff7510 8d443011 ff760d ff7609 50 e8???????? }
            // n = 6, score = 400
            //   ff7510               | push                dword ptr [ebp + 0x10]
            //   8d443011             | lea                 eax, [eax + esi + 0x11]
            //   ff760d               | push                dword ptr [esi + 0xd]
            //   ff7609               | push                dword ptr [esi + 9]
            //   50                   | push                eax
            //   e8????????           |                     

        $sequence_8 = { 8bce ff5038 eb09 53 57 8bce e8???????? }
            // n = 7, score = 400
            //   8bce                 | mov                 ecx, esi
            //   ff5038               | call                dword ptr [eax + 0x38]
            //   eb09                 | jmp                 0xb
            //   53                   | push                ebx
            //   57                   | push                edi
            //   8bce                 | mov                 ecx, esi
            //   e8????????           |                     

        $sequence_9 = { 8b5de0 6a19 8d45ac 57 50 e8???????? 83c40c }
            // n = 7, score = 400
            //   8b5de0               | mov                 ebx, dword ptr [ebp - 0x20]
            //   6a19                 | push                0x19
            //   8d45ac               | lea                 eax, [ebp - 0x54]
            //   57                   | push                edi
            //   50                   | push                eax
            //   e8????????           |                     
            //   83c40c               | add                 esp, 0xc

    condition:
        7 of them and filesize < 360448
}