rule win_anel_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2023-07-11"
        version = "1"
        description = "Detects win.anel."
        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.anel"
        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 = { e8???????? 52 50 8d4590 68???????? 50 e8???????? }
            // n = 7, score = 200
            //   e8????????           |                     
            //   52                   | push                edx
            //   50                   | push                eax
            //   8d4590               | lea                 eax, [ebp - 0x70]
            //   68????????           |                     
            //   50                   | push                eax
            //   e8????????           |                     

        $sequence_1 = { 8b4110 05b1675616 0301 8d4a04 eb19 8b3a }
            // n = 6, score = 200
            //   8b4110               | mov                 eax, dword ptr [ecx + 0x10]
            //   05b1675616           | add                 eax, 0x165667b1
            //   0301                 | add                 eax, dword ptr [ecx]
            //   8d4a04               | lea                 ecx, [edx + 4]
            //   eb19                 | jmp                 0x1b
            //   8b3a                 | mov                 edi, dword ptr [edx]

        $sequence_2 = { 8bda 50 8d75d4 895db4 894db0 e8???????? 8365fc00 }
            // n = 7, score = 200
            //   8bda                 | mov                 ebx, edx
            //   50                   | push                eax
            //   8d75d4               | lea                 esi, [ebp - 0x2c]
            //   895db4               | mov                 dword ptr [ebp - 0x4c], ebx
            //   894db0               | mov                 dword ptr [ebp - 0x50], ecx
            //   e8????????           |                     
            //   8365fc00             | and                 dword ptr [ebp - 4], 0

        $sequence_3 = { 8b4b14 83f908 7204 8b03 eb02 8bc3 6683382f }
            // n = 7, score = 200
            //   8b4b14               | mov                 ecx, dword ptr [ebx + 0x14]
            //   83f908               | cmp                 ecx, 8
            //   7204                 | jb                  6
            //   8b03                 | mov                 eax, dword ptr [ebx]
            //   eb02                 | jmp                 4
            //   8bc3                 | mov                 eax, ebx
            //   6683382f             | cmp                 word ptr [eax], 0x2f

        $sequence_4 = { 837b1410 7202 8b1b 6a00 56 ff36 53 }
            // n = 7, score = 200
            //   837b1410             | cmp                 dword ptr [ebx + 0x14], 0x10
            //   7202                 | jb                  4
            //   8b1b                 | mov                 ebx, dword ptr [ebx]
            //   6a00                 | push                0
            //   56                   | push                esi
            //   ff36                 | push                dword ptr [esi]
            //   53                   | push                ebx

        $sequence_5 = { e8???????? 6a01 8d75ac e8???????? 6a01 8db568ffffff c645fc03 }
            // n = 7, score = 200
            //   e8????????           |                     
            //   6a01                 | push                1
            //   8d75ac               | lea                 esi, [ebp - 0x54]
            //   e8????????           |                     
            //   6a01                 | push                1
            //   8db568ffffff         | lea                 esi, [ebp - 0x98]
            //   c645fc03             | mov                 byte ptr [ebp - 4], 3

        $sequence_6 = { a5 a5 a5 a5 8bfb 8d5c1b02 3b5d0c }
            // n = 7, score = 200
            //   a5                   | movsd               dword ptr es:[edi], dword ptr [esi]
            //   a5                   | movsd               dword ptr es:[edi], dword ptr [esi]
            //   a5                   | movsd               dword ptr es:[edi], dword ptr [esi]
            //   a5                   | movsd               dword ptr es:[edi], dword ptr [esi]
            //   8bfb                 | mov                 edi, ebx
            //   8d5c1b02             | lea                 ebx, [ebx + ebx + 2]
            //   3b5d0c               | cmp                 ebx, dword ptr [ebp + 0xc]

        $sequence_7 = { 8bc6 50 e8???????? c9 c3 6a08 b8???????? }
            // n = 7, score = 200
            //   8bc6                 | mov                 eax, esi
            //   50                   | push                eax
            //   e8????????           |                     
            //   c9                   | leave               
            //   c3                   | ret                 
            //   6a08                 | push                8
            //   b8????????           |                     

        $sequence_8 = { 8d550c 52 51 50 53 ff15???????? }
            // n = 6, score = 200
            //   8d550c               | lea                 edx, [ebp + 0xc]
            //   52                   | push                edx
            //   51                   | push                ecx
            //   50                   | push                eax
            //   53                   | push                ebx
            //   ff15????????         |                     

        $sequence_9 = { 50 e8???????? 59 8945e8 85c0 0f848e000000 8365fc00 }
            // n = 7, score = 200
            //   50                   | push                eax
            //   e8????????           |                     
            //   59                   | pop                 ecx
            //   8945e8               | mov                 dword ptr [ebp - 0x18], eax
            //   85c0                 | test                eax, eax
            //   0f848e000000         | je                  0x94
            //   8365fc00             | and                 dword ptr [ebp - 4], 0

    condition:
        7 of them and filesize < 376832
}