rule win_mangzamel_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2022-04-08"
        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 = "20220405"
        malpedia_hash = "ecd38294bd47d5589be5cd5490dc8bb4804afc2a"
        malpedia_version = "20220411"
        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 = { ff35???????? 50 ffd6 85c0 75c7 }
            // n = 5, score = 400
            //   ff35????????         |                     
            //   50                   | push                eax
            //   ffd6                 | call                esi
            //   85c0                 | test                eax, eax
            //   75c7                 | jne                 0xffffffc9

        $sequence_1 = { 8b40f8 2bc6 48 50 8d4508 50 e8???????? }
            // n = 7, score = 400
            //   8b40f8               | mov                 eax, dword ptr [eax - 8]
            //   2bc6                 | sub                 eax, esi
            //   48                   | dec                 eax
            //   50                   | push                eax
            //   8d4508               | lea                 eax, dword ptr [ebp + 8]
            //   50                   | push                eax
            //   e8????????           |                     

        $sequence_2 = { e8???????? 8bf0 8b4514 0516340000 6a19 50 }
            // n = 6, score = 400
            //   e8????????           |                     
            //   8bf0                 | mov                 esi, eax
            //   8b4514               | mov                 eax, dword ptr [ebp + 0x14]
            //   0516340000           | add                 eax, 0x3416
            //   6a19                 | push                0x19
            //   50                   | push                eax

        $sequence_3 = { e9???????? 8d8e90000000 e8???????? eb7e 8b06 80a6c502000000 6801110011 }
            // n = 7, score = 400
            //   e9????????           |                     
            //   8d8e90000000         | lea                 ecx, dword ptr [esi + 0x90]
            //   e8????????           |                     
            //   eb7e                 | jmp                 0x80
            //   8b06                 | mov                 eax, dword ptr [esi]
            //   80a6c502000000       | and                 byte ptr [esi + 0x2c5], 0
            //   6801110011           | push                0x11001101

        $sequence_4 = { e8???????? 8d4d08 c645fc03 e8???????? 6a2e 8d4dec e8???????? }
            // n = 7, score = 400
            //   e8????????           |                     
            //   8d4d08               | lea                 ecx, dword ptr [ebp + 8]
            //   c645fc03             | mov                 byte ptr [ebp - 4], 3
            //   e8????????           |                     
            //   6a2e                 | push                0x2e
            //   8d4dec               | lea                 ecx, dword ptr [ebp - 0x14]
            //   e8????????           |                     

        $sequence_5 = { 51 8d8f16340000 51 8bce ff7510 ff5034 84c0 }
            // n = 7, score = 400
            //   51                   | push                ecx
            //   8d8f16340000         | lea                 ecx, dword ptr [edi + 0x3416]
            //   51                   | push                ecx
            //   8bce                 | mov                 ecx, esi
            //   ff7510               | push                dword ptr [ebp + 0x10]
            //   ff5034               | call                dword ptr [eax + 0x34]
            //   84c0                 | test                al, al

        $sequence_6 = { 8b4708 83650800 85c0 8945f4 7658 8b4704 }
            // n = 6, score = 400
            //   8b4708               | mov                 eax, dword ptr [edi + 8]
            //   83650800             | and                 dword ptr [ebp + 8], 0
            //   85c0                 | test                eax, eax
            //   8945f4               | mov                 dword ptr [ebp - 0xc], eax
            //   7658                 | jbe                 0x5a
            //   8b4704               | mov                 eax, dword ptr [edi + 4]

        $sequence_7 = { e8???????? 8b4d18 50 e8???????? 50 }
            // n = 5, score = 400
            //   e8????????           |                     
            //   8b4d18               | mov                 ecx, dword ptr [ebp + 0x18]
            //   50                   | push                eax
            //   e8????????           |                     
            //   50                   | push                eax

        $sequence_8 = { 8bc8 e8???????? 8bf0 85f6 7407 8bce e8???????? }
            // n = 7, score = 400
            //   8bc8                 | mov                 ecx, eax
            //   e8????????           |                     
            //   8bf0                 | mov                 esi, eax
            //   85f6                 | test                esi, esi
            //   7407                 | je                  9
            //   8bce                 | mov                 ecx, esi
            //   e8????????           |                     

        $sequence_9 = { 8937 8bc2 5f 5e 5b c3 }
            // n = 6, score = 400
            //   8937                 | mov                 dword ptr [edi], esi
            //   8bc2                 | mov                 eax, edx
            //   5f                   | pop                 edi
            //   5e                   | pop                 esi
            //   5b                   | pop                 ebx
            //   c3                   | ret                 

    condition:
        7 of them and filesize < 360448
}