rule win_xenarmor_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-09-17"
        version = "1"
        description = "Detects win.xenarmor."
        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.xenarmor"
        malpedia_rule_date = "20260916"
        malpedia_hash = "53a643781c18e08f4a50949af60172d837a0b6f6"
        malpedia_version = "20260917"
        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???????? 8b5c2424 ba25000000 53 8bce e8???????? 83c414 }
            // n = 7, score = 100
            //   e8????????           |                     
            //   8b5c2424             | mov                 ebx, dword ptr [esp + 0x24]
            //   ba25000000           | mov                 edx, 0x25
            //   53                   | push                ebx
            //   8bce                 | mov                 ecx, esi
            //   e8????????           |                     
            //   83c414               | add                 esp, 0x14

        $sequence_1 = { e8???????? 83c410 83f804 0f85adfdffff ffb5ccd4ffff 8d58fd 33ff }
            // n = 7, score = 100
            //   e8????????           |                     
            //   83c410               | add                 esp, 0x10
            //   83f804               | cmp                 eax, 4
            //   0f85adfdffff         | jne                 0xfffffdb3
            //   ffb5ccd4ffff         | push                dword ptr [ebp - 0x2b34]
            //   8d58fd               | lea                 ebx, [eax - 3]
            //   33ff                 | xor                 edi, edi

        $sequence_2 = { c70000000000 83beccb6050000 755b 6a02 6aff 680c100000 ffb6b8ba0500 }
            // n = 7, score = 100
            //   c70000000000         | mov                 dword ptr [eax], 0
            //   83beccb6050000       | cmp                 dword ptr [esi + 0x5b6cc], 0
            //   755b                 | jne                 0x5d
            //   6a02                 | push                2
            //   6aff                 | push                -1
            //   680c100000           | push                0x100c
            //   ffb6b8ba0500         | push                dword ptr [esi + 0x5bab8]

        $sequence_3 = { 8b5708 8b5c241c 85d2 0f84cf010000 8b02 8bcb 89442438 }
            // n = 7, score = 100
            //   8b5708               | mov                 edx, dword ptr [edi + 8]
            //   8b5c241c             | mov                 ebx, dword ptr [esp + 0x1c]
            //   85d2                 | test                edx, edx
            //   0f84cf010000         | je                  0x1d5
            //   8b02                 | mov                 eax, dword ptr [edx]
            //   8bcb                 | mov                 ecx, ebx
            //   89442438             | mov                 dword ptr [esp + 0x38], eax

        $sequence_4 = { e8???????? c706???????? 8db730a40500 c645fc11 8bce 8975ec e8???????? }
            // n = 7, score = 100
            //   e8????????           |                     
            //   c706????????         |                     
            //   8db730a40500         | lea                 esi, [edi + 0x5a430]
            //   c645fc11             | mov                 byte ptr [ebp - 4], 0x11
            //   8bce                 | mov                 ecx, esi
            //   8975ec               | mov                 dword ptr [ebp - 0x14], esi
            //   e8????????           |                     

        $sequence_5 = { e8???????? 83c414 8d9584e8ffff 8d8d6cecffff e8???????? 85c0 0f843cfcffff }
            // n = 7, score = 100
            //   e8????????           |                     
            //   83c414               | add                 esp, 0x14
            //   8d9584e8ffff         | lea                 edx, [ebp - 0x177c]
            //   8d8d6cecffff         | lea                 ecx, [ebp - 0x1394]
            //   e8????????           |                     
            //   85c0                 | test                eax, eax
            //   0f843cfcffff         | je                  0xfffffc42

        $sequence_6 = { c744880c00000000 c744881000000000 8b0f 6a01 e8???????? 89442428 83c404 }
            // n = 7, score = 100
            //   c744880c00000000     | mov                 dword ptr [eax + ecx*4 + 0xc], 0
            //   c744881000000000     | mov                 dword ptr [eax + ecx*4 + 0x10], 0
            //   8b0f                 | mov                 ecx, dword ptr [edi]
            //   6a01                 | push                1
            //   e8????????           |                     
            //   89442428             | mov                 dword ptr [esp + 0x28], eax
            //   83c404               | add                 esp, 4

        $sequence_7 = { e8???????? 83c40c 85c0 750e 3945fc 7419 80be806c6c0001 }
            // n = 7, score = 100
            //   e8????????           |                     
            //   83c40c               | add                 esp, 0xc
            //   85c0                 | test                eax, eax
            //   750e                 | jne                 0x10
            //   3945fc               | cmp                 dword ptr [ebp - 4], eax
            //   7419                 | je                  0x1b
            //   80be806c6c0001       | cmp                 byte ptr [esi + 0x6c6c80], 1

        $sequence_8 = { e8???????? 85c0 7928 46 83c748 3bf3 7cea }
            // n = 7, score = 100
            //   e8????????           |                     
            //   85c0                 | test                eax, eax
            //   7928                 | jns                 0x2a
            //   46                   | inc                 esi
            //   83c748               | add                 edi, 0x48
            //   3bf3                 | cmp                 esi, ebx
            //   7cea                 | jl                  0xffffffec

        $sequence_9 = { ff30 8b44241c ff74246c f6400204 b812000000 0f45c1 50 }
            // n = 7, score = 100
            //   ff30                 | push                dword ptr [eax]
            //   8b44241c             | mov                 eax, dword ptr [esp + 0x1c]
            //   ff74246c             | push                dword ptr [esp + 0x6c]
            //   f6400204             | test                byte ptr [eax + 2], 4
            //   b812000000           | mov                 eax, 0x12
            //   0f45c1               | cmovne              eax, ecx
            //   50                   | push                eax

    condition:
        7 of them and filesize < 10894336
}