rule win_rawdoor_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-05-04"
        version = "1"
        description = "Detects win.rawdoor."
        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.rawdoor"
        malpedia_rule_date = "20260422"
        malpedia_hash = "a182e35da64e6d71cb55f125c4d4225196523f14"
        malpedia_version = "20260504"
        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 = { 030e 03d1 c1c207 4103d2 }
            // n = 4, score = 600
            //   030e                 | add                 edx, ecx
            //   03d1                 | inc                 ecx
            //   c1c207               | mov                 ecx, eax
            //   4103d2               | not                 ecx

        $sequence_1 = { 034210 418d90a9cfde4b 458d81604bbbf6 03d0 }
            // n = 4, score = 600
            //   034210               | rol                 edx, 7
            //   418d90a9cfde4b       | inc                 ecx
            //   458d81604bbbf6       | add                 edx, edx
            //   03d0                 | and                 eax, edx

        $sequence_2 = { 030b 4403d1 418bc8 f7d1 23ca }
            // n = 5, score = 600
            //   030b                 | add                 ecx, dword ptr [ebx]
            //   4403d1               | inc                 esp
            //   418bc8               | add                 edx, ecx
            //   f7d1                 | inc                 ecx
            //   23ca                 | mov                 ecx, eax

        $sequence_3 = { 034218 418d91051d8804 458d8a39d0d4d9 03d0 }
            // n = 4, score = 600
            //   034218               | inc                 ebp
            //   418d91051d8804       | lea                 eax, [ecx - 0x944b4a0]
            //   458d8a39d0d4d9       | add                 edx, eax
            //   03d0                 | inc                 ebp

        $sequence_4 = { 03442444 3d00040000 730e 488d4c2450 }
            // n = 4, score = 600
            //   03442444             | rol                 edx, 0xb
            //   3d00040000           | inc                 ecx
            //   730e                 | add                 edx, ebx
            //   488d4c2450           | add                 eax, dword ptr [edx + 0x18]

        $sequence_5 = { 034608 03d0 8b442408 4103c1 4c8b4c2410 }
            // n = 5, score = 600
            //   034608               | inc                 ebp
            //   03d0                 | lea                 ecx, [edx - 0x262b2fc7]
            //   8b442408             | add                 edx, eax
            //   4103c1               | dec                 eax
            //   4c8b4c2410           | mov                 eax, dword ptr [esp]

        $sequence_6 = { 034808 4403c1 8bcb f7d1 23ca }
            // n = 5, score = 600
            //   034808               | add                 eax, dword ptr [esp + 0x44]
            //   4403c1               | cmp                 eax, 0x400
            //   8bcb                 | jae                 0x30
            //   f7d1                 | dec                 eax
            //   23ca                 | lea                 ecx, [esp + 0x50]

        $sequence_7 = { 034824 418bc0 4403c9 33c2 418d8be599dbe6 }
            // n = 5, score = 600
            //   034824               | mov                 edx, ebx
            //   418bc0               | add                 eax, dword ptr [esp + 0x44]
            //   4403c9               | cmp                 eax, 0x400
            //   33c2                 | jae                 0x15
            //   418d8be599dbe6       | dec                 eax

        $sequence_8 = { 0101 0101 0100 0000 0001 0100 }
            // n = 6, score = 400
            //   0101                 | and                 ecx, edx
            //   0101                 | add                 ecx, dword ptr [ebx]
            //   0100                 | inc                 esp
            //   0000                 | add                 edx, ecx
            //   0001                 | inc                 ecx
            //   0100                 | mov                 ecx, eax

        $sequence_9 = { 0000 0001 0100 0001 0101 0101 }
            // n = 6, score = 400
            //   0000                 | mov                 ecx, edx
            //   0001                 | add                 ecx, dword ptr [esi]
            //   0100                 | add                 edx, ecx
            //   0001                 | rol                 edx, 7
            //   0101                 | inc                 ecx
            //   0101                 | add                 edx, edx

        $sequence_10 = { 83c40c 56 ff34b8 ff15???????? 47 3b7dfc 7cd7 }
            // n = 7, score = 200
            //   83c40c               | lea                 edx, [eax + 0x1fa27cf8]
            //   56                   | add                 eax, dword ptr [edx + 0x18]
            //   ff34b8               | inc                 ecx
            //   ff15????????         |                     
            //   47                   | lea                 edx, [ecx + 0x4881d05]
            //   3b7dfc               | inc                 ebp
            //   7cd7                 | lea                 ecx, [edx - 0x262b2fc7]

        $sequence_11 = { 84c0 75f9 2bca 8d47ff 03f1 3bd8 7411 }
            // n = 7, score = 200
            //   84c0                 | lea                 ecx, [edx - 0x262b2fc7]
            //   75f9                 | add                 edx, eax
            //   2bca                 | dec                 eax
            //   8d47ff               | mov                 eax, dword ptr [esp]
            //   03f1                 | add                 eax, dword ptr [edx + 0x18]
            //   3bd8                 | inc                 ecx
            //   7411                 | lea                 edx, [ecx + 0x4881d05]

        $sequence_12 = { ff15???????? ff7604 8b35???????? ffd6 8bf8 8d85f8feffff }
            // n = 6, score = 200
            //   ff15????????         |                     
            //   ff7604               | cmp                 eax, 0x400
            //   8b35????????         |                     
            //   ffd6                 | jae                 0x15
            //   8bf8                 | dec                 eax
            //   8d85f8feffff         | lea                 ecx, [esp + 0x50]

        $sequence_13 = { 6a00 8985e0fbffff c785f4fbffff00000000 c785f8fbffff00000000 c785ecfbffff00000000 ff15???????? 8bd8 }
            // n = 7, score = 200
            //   6a00                 | inc                 ebp
            //   8985e0fbffff         | lea                 ecx, [edx - 0x262b2fc7]
            //   c785f4fbffff00000000     | add    edx, eax
            //   c785f8fbffff00000000     | dec    eax
            //   c785ecfbffff00000000     | mov    eax, dword ptr [esp]
            //   ff15????????         |                     
            //   8bd8                 | inc                 ebp

        $sequence_14 = { 0f8483000000 48 744e 83e809 0f8523020000 c745d803000000 c745dce4690210 }
            // n = 7, score = 200
            //   0f8483000000         | add                 edx, eax
            //   48                   | dec                 eax
            //   744e                 | mov                 eax, dword ptr [esp]
            //   83e809               | inc                 ebp
            //   0f8523020000         | lea                 edx, [eax + 0x1fa27cf8]
            //   c745d803000000       | ror                 edx, 9
            //   c745dce4690210       | add                 eax, dword ptr [esp + 0x44]

        $sequence_15 = { 52 ebcc 8d45e4 50 681f000200 6a00 ff750c }
            // n = 7, score = 200
            //   52                   | add                 eax, dword ptr [esp + 0x44]
            //   ebcc                 | cmp                 eax, 0x400
            //   8d45e4               | jae                 0x15
            //   50                   | dec                 eax
            //   681f000200           | lea                 ecx, [esp + 0x50]
            //   6a00                 | dec                 eax
            //   ff750c               | mov                 edx, ebx

    condition:
        7 of them and filesize < 445440
}