rule win_lilith_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-09-17"
        version = "1"
        description = "Detects win.lilith."
        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.lilith"
        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 = { 660fd645ec 8bd4 c745f400000000 0f1145dc c742140f000000 }
            // n = 5, score = 200
            //   660fd645ec           | movq                qword ptr [ebp - 0x14], xmm0
            //   8bd4                 | mov                 edx, esp
            //   c745f400000000       | mov                 dword ptr [ebp - 0xc], 0
            //   0f1145dc             | movups              xmmword ptr [ebp - 0x24], xmm0
            //   c742140f000000       | mov                 dword ptr [edx + 0x14], 0xf

        $sequence_1 = { 57 8db8b4474300 57 ff15???????? ff0d???????? 83ef18 83ee01 }
            // n = 7, score = 200
            //   57                   | push                edi
            //   8db8b4474300         | lea                 edi, [eax + 0x4347b4]
            //   57                   | push                edi
            //   ff15????????         |                     
            //   ff0d????????         |                     
            //   83ef18               | sub                 edi, 0x18
            //   83ee01               | sub                 esi, 1

        $sequence_2 = { 8bd6 8bc8 e8???????? 8b45d0 83c404 83f808 }
            // n = 6, score = 200
            //   8bd6                 | mov                 edx, esi
            //   8bc8                 | mov                 ecx, eax
            //   e8????????           |                     
            //   8b45d0               | mov                 eax, dword ptr [ebp - 0x30]
            //   83c404               | add                 esp, 4
            //   83f808               | cmp                 eax, 8

        $sequence_3 = { 8b4df0 8b048da84b4300 f644382848 741c 8a55ff 80fa0a }
            // n = 6, score = 200
            //   8b4df0               | mov                 ecx, dword ptr [ebp - 0x10]
            //   8b048da84b4300       | mov                 eax, dword ptr [ecx*4 + 0x434ba8]
            //   f644382848           | test                byte ptr [eax + edi + 0x28], 0x48
            //   741c                 | je                  0x1e
            //   8a55ff               | mov                 dl, byte ptr [ebp - 1]
            //   80fa0a               | cmp                 dl, 0xa

        $sequence_4 = { 75f9 2bca 51 8b4df0 57 e8???????? 57 }
            // n = 7, score = 200
            //   75f9                 | jne                 0xfffffffb
            //   2bca                 | sub                 ecx, edx
            //   51                   | push                ecx
            //   8b4df0               | mov                 ecx, dword ptr [ebp - 0x10]
            //   57                   | push                edi
            //   e8????????           |                     
            //   57                   | push                edi

        $sequence_5 = { 50 8b8540ffffff ff7008 ffd7 80bd64ffffff00 }
            // n = 5, score = 200
            //   50                   | push                eax
            //   8b8540ffffff         | mov                 eax, dword ptr [ebp - 0xc0]
            //   ff7008               | push                dword ptr [eax + 8]
            //   ffd7                 | call                edi
            //   80bd64ffffff00       | cmp                 byte ptr [ebp - 0x9c], 0

        $sequence_6 = { c6041900 8d4d08 837d1c10 0f434d08 51 8b4d18 83c102 }
            // n = 7, score = 200
            //   c6041900             | mov                 byte ptr [ecx + ebx], 0
            //   8d4d08               | lea                 ecx, [ebp + 8]
            //   837d1c10             | cmp                 dword ptr [ebp + 0x1c], 0x10
            //   0f434d08             | cmovae              ecx, dword ptr [ebp + 8]
            //   51                   | push                ecx
            //   8b4d18               | mov                 ecx, dword ptr [ebp + 0x18]
            //   83c102               | add                 ecx, 2

        $sequence_7 = { 8d4101 f7d8 1bc0 23c1 eb57 53 8b1c85d87b4200 }
            // n = 7, score = 200
            //   8d4101               | lea                 eax, [ecx + 1]
            //   f7d8                 | neg                 eax
            //   1bc0                 | sbb                 eax, eax
            //   23c1                 | and                 eax, ecx
            //   eb57                 | jmp                 0x59
            //   53                   | push                ebx
            //   8b1c85d87b4200       | mov                 ebx, dword ptr [eax*4 + 0x427bd8]

        $sequence_8 = { 8b4d08 898814434300 68???????? e8???????? 8be5 }
            // n = 5, score = 200
            //   8b4d08               | mov                 ecx, dword ptr [ebp + 8]
            //   898814434300         | mov                 dword ptr [eax + 0x434314], ecx
            //   68????????           |                     
            //   e8????????           |                     
            //   8be5                 | mov                 esp, ebp

        $sequence_9 = { 8b45fc 03148da84b4300 8b00 894218 }
            // n = 4, score = 200
            //   8b45fc               | mov                 eax, dword ptr [ebp - 4]
            //   03148da84b4300       | add                 edx, dword ptr [ecx*4 + 0x434ba8]
            //   8b00                 | mov                 eax, dword ptr [eax]
            //   894218               | mov                 dword ptr [edx + 0x18], eax

    condition:
        7 of them and filesize < 499712
}