rule win_mangzamel_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2023-01-25"
        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 = "20230124"
        malpedia_hash = "2ee0eebba83dce3d019a90519f2f972c0fcf9686"
        malpedia_version = "20230125"
        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 = { 5b c9 c21400 80650b00 b8???????? c3 b8???????? }
            // n = 7, score = 400
            //   5b                   | pop                 ebx
            //   c9                   | leave               
            //   c21400               | ret                 0x14
            //   80650b00             | and                 byte ptr [ebp + 0xb], 0
            //   b8????????           |                     
            //   c3                   | ret                 
            //   b8????????           |                     

        $sequence_1 = { 57 e8???????? e9???????? 8b4d10 6a64 53 e8???????? }
            // n = 7, score = 400
            //   57                   | push                edi
            //   e8????????           |                     
            //   e9????????           |                     
            //   8b4d10               | mov                 ecx, dword ptr [ebp + 0x10]
            //   6a64                 | push                0x64
            //   53                   | push                ebx
            //   e8????????           |                     

        $sequence_2 = { 6805261111 51 ff7008 8bce e8???????? eb05 e8???????? }
            // n = 7, score = 400
            //   6805261111           | push                0x11112605
            //   51                   | push                ecx
            //   ff7008               | push                dword ptr [eax + 8]
            //   8bce                 | mov                 ecx, esi
            //   e8????????           |                     
            //   eb05                 | jmp                 7
            //   e8????????           |                     

        $sequence_3 = { 8d857895ffff 8b08 3bcb 7603 49 8908 8b466c }
            // n = 7, score = 400
            //   8d857895ffff         | lea                 eax, [ebp - 0x6a88]
            //   8b08                 | mov                 ecx, dword ptr [eax]
            //   3bcb                 | cmp                 ecx, ebx
            //   7603                 | jbe                 5
            //   49                   | dec                 ecx
            //   8908                 | mov                 dword ptr [eax], ecx
            //   8b466c               | mov                 eax, dword ptr [esi + 0x6c]

        $sequence_4 = { 53 50 e8???????? 8d857895ffff 57 50 8d858ec9ffff }
            // n = 7, score = 400
            //   53                   | push                ebx
            //   50                   | push                eax
            //   e8????????           |                     
            //   8d857895ffff         | lea                 eax, [ebp - 0x6a88]
            //   57                   | push                edi
            //   50                   | push                eax
            //   8d858ec9ffff         | lea                 eax, [ebp - 0x3672]

        $sequence_5 = { 894160 668b442408 66894164 c20800 53 56 8bf1 }
            // n = 7, score = 400
            //   894160               | mov                 dword ptr [ecx + 0x60], eax
            //   668b442408           | mov                 ax, word ptr [esp + 8]
            //   66894164             | mov                 word ptr [ecx + 0x64], ax
            //   c20800               | ret                 8
            //   53                   | push                ebx
            //   56                   | push                esi
            //   8bf1                 | mov                 esi, ecx

        $sequence_6 = { 8b490c 56 33c0 33f6 3bc8 7419 8bd1 }
            // n = 7, score = 400
            //   8b490c               | mov                 ecx, dword ptr [ecx + 0xc]
            //   56                   | push                esi
            //   33c0                 | xor                 eax, eax
            //   33f6                 | xor                 esi, esi
            //   3bc8                 | cmp                 ecx, eax
            //   7419                 | je                  0x1b
            //   8bd1                 | mov                 edx, ecx

        $sequence_7 = { 834dfcff 8d4dac e8???????? 8b4df4 64890d00000000 c9 c21400 }
            // n = 7, score = 400
            //   834dfcff             | or                  dword ptr [ebp - 4], 0xffffffff
            //   8d4dac               | lea                 ecx, [ebp - 0x54]
            //   e8????????           |                     
            //   8b4df4               | mov                 ecx, dword ptr [ebp - 0xc]
            //   64890d00000000       | mov                 dword ptr fs:[0], ecx
            //   c9                   | leave               
            //   c21400               | ret                 0x14

        $sequence_8 = { c9 c3 55 8bec 83ec54 8b4d18 53 }
            // n = 7, score = 400
            //   c9                   | leave               
            //   c3                   | ret                 
            //   55                   | push                ebp
            //   8bec                 | mov                 ebp, esp
            //   83ec54               | sub                 esp, 0x54
            //   8b4d18               | mov                 ecx, dword ptr [ebp + 0x18]
            //   53                   | push                ebx

        $sequence_9 = { 56 57 e8???????? 59 59 5f 8ac3 }
            // n = 7, score = 400
            //   56                   | push                esi
            //   57                   | push                edi
            //   e8????????           |                     
            //   59                   | pop                 ecx
            //   59                   | pop                 ecx
            //   5f                   | pop                 edi
            //   8ac3                 | mov                 al, bl

    condition:
        7 of them and filesize < 360448
}