rule win_warlock_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-05-04"
        version = "1"
        description = "Detects win.warlock."
        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.warlock"
        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 = { 803800 0f4ff0 8a06 3c7f 75d1 8b5da0 8b45e8 }
            // n = 7, score = 100
            //   803800               | cmp                 byte ptr [eax], 0
            //   0f4ff0               | cmovg               esi, eax
            //   8a06                 | mov                 al, byte ptr [esi]
            //   3c7f                 | cmp                 al, 0x7f
            //   75d1                 | jne                 0xffffffd3
            //   8b5da0               | mov                 ebx, dword ptr [ebp - 0x60]
            //   8b45e8               | mov                 eax, dword ptr [ebp - 0x18]

        $sequence_1 = { 8bec 8b4508 56 8bf1 894604 8b450c c70600000000 }
            // n = 7, score = 100
            //   8bec                 | mov                 ebp, esp
            //   8b4508               | mov                 eax, dword ptr [ebp + 8]
            //   56                   | push                esi
            //   8bf1                 | mov                 esi, ecx
            //   894604               | mov                 dword ptr [esi + 4], eax
            //   8b450c               | mov                 eax, dword ptr [ebp + 0xc]
            //   c70600000000         | mov                 dword ptr [esi], 0

        $sequence_2 = { 89842468020000 8b84244c010000 038424c4000000 8984246c020000 8b842450010000 038424c8000000 89842470020000 }
            // n = 7, score = 100
            //   89842468020000       | mov                 dword ptr [esp + 0x268], eax
            //   8b84244c010000       | mov                 eax, dword ptr [esp + 0x14c]
            //   038424c4000000       | add                 eax, dword ptr [esp + 0xc4]
            //   8984246c020000       | mov                 dword ptr [esp + 0x26c], eax
            //   8b842450010000       | mov                 eax, dword ptr [esp + 0x150]
            //   038424c8000000       | add                 eax, dword ptr [esp + 0xc8]
            //   89842470020000       | mov                 dword ptr [esp + 0x270], eax

        $sequence_3 = { 83e80c 7418 83e801 7413 83e801 740e 83e801 }
            // n = 7, score = 100
            //   83e80c               | sub                 eax, 0xc
            //   7418                 | je                  0x1a
            //   83e801               | sub                 eax, 1
            //   7413                 | je                  0x15
            //   83e801               | sub                 eax, 1
            //   740e                 | je                  0x10
            //   83e801               | sub                 eax, 1

        $sequence_4 = { 58 0f45d0 8ac1 2c30 3c09 7708 0fbec1 }
            // n = 7, score = 100
            //   58                   | pop                 eax
            //   0f45d0               | cmovne              edx, eax
            //   8ac1                 | mov                 al, cl
            //   2c30                 | sub                 al, 0x30
            //   3c09                 | cmp                 al, 9
            //   7708                 | ja                  0xa
            //   0fbec1               | movsx               eax, cl

        $sequence_5 = { c1c811 c1c913 33c8 8b442448 c1e80a 33c8 8b442454 }
            // n = 7, score = 100
            //   c1c811               | ror                 eax, 0x11
            //   c1c913               | ror                 ecx, 0x13
            //   33c8                 | xor                 ecx, eax
            //   8b442448             | mov                 eax, dword ptr [esp + 0x48]
            //   c1e80a               | shr                 eax, 0xa
            //   33c8                 | xor                 ecx, eax
            //   8b442454             | mov                 eax, dword ptr [esp + 0x54]

        $sequence_6 = { c20c00 55 8bec 8b4508 56 8bf1 894604 }
            // n = 7, score = 100
            //   c20c00               | ret                 0xc
            //   55                   | push                ebp
            //   8bec                 | mov                 ebp, esp
            //   8b4508               | mov                 eax, dword ptr [ebp + 8]
            //   56                   | push                esi
            //   8bf1                 | mov                 esi, ecx
            //   894604               | mov                 dword ptr [esi + 4], eax

        $sequence_7 = { 84c0 0f846c040000 3c24 7521 ff7518 8d45ef 8bcf }
            // n = 7, score = 100
            //   84c0                 | test                al, al
            //   0f846c040000         | je                  0x472
            //   3c24                 | cmp                 al, 0x24
            //   7521                 | jne                 0x23
            //   ff7518               | push                dword ptr [ebp + 0x18]
            //   8d45ef               | lea                 eax, [ebp - 0x11]
            //   8bcf                 | mov                 ecx, edi

        $sequence_8 = { 51 e8???????? 83c40c eb25 52 6a00 51 }
            // n = 7, score = 100
            //   51                   | push                ecx
            //   e8????????           |                     
            //   83c40c               | add                 esp, 0xc
            //   eb25                 | jmp                 0x27
            //   52                   | push                edx
            //   6a00                 | push                0
            //   51                   | push                ecx

        $sequence_9 = { 8b4dec 40 898680000000 8b4508 894804 8b4de8 8908 }
            // n = 7, score = 100
            //   8b4dec               | mov                 ecx, dword ptr [ebp - 0x14]
            //   40                   | inc                 eax
            //   898680000000         | mov                 dword ptr [esi + 0x80], eax
            //   8b4508               | mov                 eax, dword ptr [ebp + 8]
            //   894804               | mov                 dword ptr [eax + 4], ecx
            //   8b4de8               | mov                 ecx, dword ptr [ebp - 0x18]
            //   8908                 | mov                 dword ptr [eax], ecx

    condition:
        7 of them and filesize < 1395712
}