rule win_divergent_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2023-07-11"
        version = "1"
        description = "Detects win.divergent."
        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.divergent"
        malpedia_rule_date = "20230705"
        malpedia_hash = "42d0574f4405bd7d2b154d321d345acb18834a41"
        malpedia_version = "20230715"
        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 = { 8d85e1feffff 50 c745ec37616978 c745f032546861 }
            // n = 4, score = 300
            //   8d85e1feffff         | lea                 eax, [ebp - 0x11f]
            //   50                   | push                eax
            //   c745ec37616978       | mov                 dword ptr [ebp - 0x14], 0x78696137
            //   c745f032546861       | mov                 dword ptr [ebp - 0x10], 0x61685432

        $sequence_1 = { e8???????? eb2d 83f86e 7422 83f874 7415 83f87b }
            // n = 7, score = 300
            //   e8????????           |                     
            //   eb2d                 | jmp                 0x2f
            //   83f86e               | cmp                 eax, 0x6e
            //   7422                 | je                  0x24
            //   83f874               | cmp                 eax, 0x74
            //   7415                 | je                  0x17
            //   83f87b               | cmp                 eax, 0x7b

        $sequence_2 = { c645fc00 c60000 40 49 75f9 8d85e4feffff 50 }
            // n = 7, score = 300
            //   c645fc00             | mov                 byte ptr [ebp - 4], 0
            //   c60000               | mov                 byte ptr [eax], 0
            //   40                   | inc                 eax
            //   49                   | dec                 ecx
            //   75f9                 | jne                 0xfffffffb
            //   8d85e4feffff         | lea                 eax, [ebp - 0x11c]
            //   50                   | push                eax

        $sequence_3 = { 66ab 8d45bc 50 e8???????? 33c0 c6458c00 8d7d8d }
            // n = 7, score = 300
            //   66ab                 | stosw               word ptr es:[edi], ax
            //   8d45bc               | lea                 eax, [ebp - 0x44]
            //   50                   | push                eax
            //   e8????????           |                     
            //   33c0                 | xor                 eax, eax
            //   c6458c00             | mov                 byte ptr [ebp - 0x74], 0
            //   8d7d8d               | lea                 edi, [ebp - 0x73]

        $sequence_4 = { 85f6 7405 8b4df0 890e 8bc7 }
            // n = 5, score = 300
            //   85f6                 | test                esi, esi
            //   7405                 | je                  7
            //   8b4df0               | mov                 ecx, dword ptr [ebp - 0x10]
            //   890e                 | mov                 dword ptr [esi], ecx
            //   8bc7                 | mov                 eax, edi

        $sequence_5 = { e8???????? 59 59 85c0 0f48c3 e9???????? 68???????? }
            // n = 7, score = 300
            //   e8????????           |                     
            //   59                   | pop                 ecx
            //   59                   | pop                 ecx
            //   85c0                 | test                eax, eax
            //   0f48c3               | cmovs               eax, ebx
            //   e9????????           |                     
            //   68????????           |                     

        $sequence_6 = { ff15???????? 837df402 7509 c745ec01000000 eb35 837df403 }
            // n = 6, score = 300
            //   ff15????????         |                     
            //   837df402             | cmp                 dword ptr [ebp - 0xc], 2
            //   7509                 | jne                 0xb
            //   c745ec01000000       | mov                 dword ptr [ebp - 0x14], 1
            //   eb35                 | jmp                 0x37
            //   837df403             | cmp                 dword ptr [ebp - 0xc], 3

        $sequence_7 = { e8???????? e8???????? 8945f8 83c408 8bc2 }
            // n = 5, score = 300
            //   e8????????           |                     
            //   e8????????           |                     
            //   8945f8               | mov                 dword ptr [ebp - 8], eax
            //   83c408               | add                 esp, 8
            //   8bc2                 | mov                 eax, edx

        $sequence_8 = { 50 e8???????? 59 6a03 56 e8???????? 59 }
            // n = 7, score = 300
            //   50                   | push                eax
            //   e8????????           |                     
            //   59                   | pop                 ecx
            //   6a03                 | push                3
            //   56                   | push                esi
            //   e8????????           |                     
            //   59                   | pop                 ecx

        $sequence_9 = { 8bf8 83c414 85ff 742c 8b463c ff743054 56 }
            // n = 7, score = 300
            //   8bf8                 | mov                 edi, eax
            //   83c414               | add                 esp, 0x14
            //   85ff                 | test                edi, edi
            //   742c                 | je                  0x2e
            //   8b463c               | mov                 eax, dword ptr [esi + 0x3c]
            //   ff743054             | push                dword ptr [eax + esi + 0x54]
            //   56                   | push                esi

    condition:
        7 of them and filesize < 212992
}