rule win_mirage_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2023-01-25"
        version = "1"
        description = "Detects win.mirage."
        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.mirage"
        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 = { c701???????? c3 55 8bec b898440000 e8???????? }
            // n = 6, score = 200
            //   c701????????         |                     
            //   c3                   | ret                 
            //   55                   | push                ebp
            //   8bec                 | mov                 ebp, esp
            //   b898440000           | mov                 eax, 0x4498
            //   e8????????           |                     

        $sequence_1 = { 8bf8 8d45fc c745fc80020000 50 57 }
            // n = 5, score = 200
            //   8bf8                 | mov                 edi, eax
            //   8d45fc               | lea                 eax, [ebp - 4]
            //   c745fc80020000       | mov                 dword ptr [ebp - 4], 0x280
            //   50                   | push                eax
            //   57                   | push                edi

        $sequence_2 = { 85c0 741e 8d8590fcffff 50 8d8590fdffff 50 }
            // n = 6, score = 200
            //   85c0                 | test                eax, eax
            //   741e                 | je                  0x20
            //   8d8590fcffff         | lea                 eax, [ebp - 0x370]
            //   50                   | push                eax
            //   8d8590fdffff         | lea                 eax, [ebp - 0x270]
            //   50                   | push                eax

        $sequence_3 = { 68???????? 6801000080 ff15???????? 85c0 7556 }
            // n = 5, score = 200
            //   68????????           |                     
            //   6801000080           | push                0x80000001
            //   ff15????????         |                     
            //   85c0                 | test                eax, eax
            //   7556                 | jne                 0x58

        $sequence_4 = { 6a19 50 ff7518 e8???????? 83c41c 85ff 7613 }
            // n = 7, score = 200
            //   6a19                 | push                0x19
            //   50                   | push                eax
            //   ff7518               | push                dword ptr [ebp + 0x18]
            //   e8????????           |                     
            //   83c41c               | add                 esp, 0x1c
            //   85ff                 | test                edi, edi
            //   7613                 | jbe                 0x15

        $sequence_5 = { 53 68???????? c745f804010000 ff75fc }
            // n = 4, score = 200
            //   53                   | push                ebx
            //   68????????           |                     
            //   c745f804010000       | mov                 dword ptr [ebp - 8], 0x104
            //   ff75fc               | push                dword ptr [ebp - 4]

        $sequence_6 = { 33db 8bbd18010000 8d45e8 53 53 6a03 50 }
            // n = 7, score = 200
            //   33db                 | xor                 ebx, ebx
            //   8bbd18010000         | mov                 edi, dword ptr [ebp + 0x118]
            //   8d45e8               | lea                 eax, [ebp - 0x18]
            //   53                   | push                ebx
            //   53                   | push                ebx
            //   6a03                 | push                3
            //   50                   | push                eax

        $sequence_7 = { 8d8590fdffff 50 e8???????? 8b45e4 59 }
            // n = 5, score = 200
            //   8d8590fdffff         | lea                 eax, [ebp - 0x270]
            //   50                   | push                eax
            //   e8????????           |                     
            //   8b45e4               | mov                 eax, dword ptr [ebp - 0x1c]
            //   59                   | pop                 ecx

        $sequence_8 = { c745f804010000 ff75fc ff15???????? ff75fc }
            // n = 4, score = 200
            //   c745f804010000       | mov                 dword ptr [ebp - 8], 0x104
            //   ff75fc               | push                dword ptr [ebp - 4]
            //   ff15????????         |                     
            //   ff75fc               | push                dword ptr [ebp - 4]

        $sequence_9 = { 50 c605????????03 e8???????? 83c40c c6450806 885dff }
            // n = 6, score = 200
            // 
            //   c605????????03       |                     
            //   e8????????           |                     
            //   83c40c               | add                 esp, 0xc
            //   c6450806             | mov                 byte ptr [ebp + 8], 6
            //   885dff               | mov                 byte ptr [ebp - 1], bl

        $sequence_10 = { c605????????03 c6450805 b301 be1c810000 56 e8???????? }
            // n = 6, score = 200
            //   c605????????03       |                     
            //   c6450805             | mov                 byte ptr [ebp + 8], 5
            //   b301                 | mov                 bl, 1
            //   be1c810000           | mov                 esi, 0x811c
            //   56                   | push                esi
            //   e8????????           |                     

        $sequence_11 = { 59 50 8d8504f5ffff 50 }
            // n = 4, score = 100
            //   59                   | pop                 ecx
            //   50                   | push                eax
            //   8d8504f5ffff         | lea                 eax, [ebp - 0xafc]
            //   50                   | push                eax

        $sequence_12 = { 8d7dc2 f3ab 66ab 0fb745fc 50 0fb745fa 50 }
            // n = 7, score = 100
            //   8d7dc2               | lea                 edi, [ebp - 0x3e]
            //   f3ab                 | rep stosd           dword ptr es:[edi], eax
            //   66ab                 | stosw               word ptr es:[edi], ax
            //   0fb745fc             | movzx               eax, word ptr [ebp - 4]
            //   50                   | push                eax
            //   0fb745fa             | movzx               eax, word ptr [ebp - 6]
            //   50                   | push                eax

        $sequence_13 = { 8d8518f4ffff 50 e8???????? 50 }
            // n = 4, score = 100
            //   8d8518f4ffff         | lea                 eax, [ebp - 0xbe8]
            //   50                   | push                eax
            //   e8????????           |                     
            //   50                   | push                eax

        $sequence_14 = { 56 68???????? 6a07 53 68???????? ff15???????? 3bc3 }
            // n = 7, score = 100
            //   56                   | push                esi
            //   68????????           |                     
            //   6a07                 | push                7
            //   53                   | push                ebx
            //   68????????           |                     
            //   ff15????????         |                     
            //   3bc3                 | cmp                 eax, ebx

        $sequence_15 = { 56 ff15???????? 85c0 a3???????? 0f848f000000 68???????? 56 }
            // n = 7, score = 100
            //   56                   | push                esi
            //   ff15????????         |                     
            //   85c0                 | test                eax, eax
            //   a3????????           |                     
            //   0f848f000000         | je                  0x95
            //   68????????           |                     
            //   56                   | push                esi

    condition:
        7 of them and filesize < 1695744
}