rule win_jlorat_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-09-17"
        version = "1"
        description = "Detects win.jlorat."
        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.jlorat"
        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 = { c7862701000000000000 c7862401000000000000 c7862001000000000000 c7868401000000000000 89e0 8908 c740041f000000 }
            // n = 7, score = 200
            //   c7862701000000000000     | mov    dword ptr [esi + 0x127], 0
            //   c7862401000000000000     | mov    dword ptr [esi + 0x124], 0
            //   c7862001000000000000     | mov    dword ptr [esi + 0x120], 0
            //   c7868401000000000000     | mov    dword ptr [esi + 0x184], 0
            //   89e0                 | mov                 eax, esp
            //   8908                 | mov                 dword ptr [eax], ecx
            //   c740041f000000       | mov                 dword ptr [eax + 4], 0x1f

        $sequence_1 = { f20f108e40020000 f20f118e50020000 f20f118648020000 c786f809000009000000 89e0 8d9648020000 895004 }
            // n = 7, score = 200
            //   f20f108e40020000     | movsd               xmm1, qword ptr [esi + 0x240]
            //   f20f118e50020000     | movsd               qword ptr [esi + 0x250], xmm1
            //   f20f118648020000     | movsd               qword ptr [esi + 0x248], xmm0
            //   c786f809000009000000     | mov    dword ptr [esi + 0x9f8], 9
            //   89e0                 | mov                 eax, esp
            //   8d9648020000         | lea                 edx, [esi + 0x248]
            //   895004               | mov                 dword ptr [eax + 4], edx

        $sequence_2 = { eb2a 8b442430 89842448030000 eb1d 89e0 c74008???????? c7400421000000 }
            // n = 7, score = 200
            //   eb2a                 | jmp                 0x2c
            //   8b442430             | mov                 eax, dword ptr [esp + 0x30]
            //   89842448030000       | mov                 dword ptr [esp + 0x348], eax
            //   eb1d                 | jmp                 0x1f
            //   89e0                 | mov                 eax, esp
            //   c74008????????       |                     
            //   c7400421000000       | mov                 dword ptr [eax + 4], 0x21

        $sequence_3 = { f20f1145d0 89e0 8d55d0 895004 8908 e8???????? eb00 }
            // n = 7, score = 200
            //   f20f1145d0           | movsd               qword ptr [ebp - 0x30], xmm0
            //   89e0                 | mov                 eax, esp
            //   8d55d0               | lea                 edx, [ebp - 0x30]
            //   895004               | mov                 dword ptr [eax + 4], edx
            //   8908                 | mov                 dword ptr [eax], ecx
            //   e8????????           |                     
            //   eb00                 | jmp                 2

        $sequence_4 = { f7e1 b9d8ffffff 89c6 8b442444 8d3c82 89d8 f7e1 }
            // n = 7, score = 200
            //   f7e1                 | mul                 ecx
            //   b9d8ffffff           | mov                 ecx, 0xffffffd8
            //   89c6                 | mov                 esi, eax
            //   8b442444             | mov                 eax, dword ptr [esp + 0x44]
            //   8d3c82               | lea                 edi, [edx + eax*4]
            //   89d8                 | mov                 eax, ebx
            //   f7e1                 | mul                 ecx

        $sequence_5 = { eb51 8b4c2408 8b44240c 8b5004 89542414 8b4008 89442418 }
            // n = 7, score = 200
            //   eb51                 | jmp                 0x53
            //   8b4c2408             | mov                 ecx, dword ptr [esp + 8]
            //   8b44240c             | mov                 eax, dword ptr [esp + 0xc]
            //   8b5004               | mov                 edx, dword ptr [eax + 4]
            //   89542414             | mov                 dword ptr [esp + 0x14], edx
            //   8b4008               | mov                 eax, dword ptr [eax + 8]
            //   89442418             | mov                 dword ptr [esp + 0x18], eax

        $sequence_6 = { f20f59442440 f20f11442440 f20f10442440 f20f110424 e8???????? 8844241f 8a44241f }
            // n = 7, score = 200
            //   f20f59442440         | mulsd               xmm0, qword ptr [esp + 0x40]
            //   f20f11442440         | movsd               qword ptr [esp + 0x40], xmm0
            //   f20f10442440         | movsd               xmm0, qword ptr [esp + 0x40]
            //   f20f110424           | movsd               qword ptr [esp], xmm0
            //   e8????????           |                     
            //   8844241f             | mov                 byte ptr [esp + 0x1f], al
            //   8a44241f             | mov                 al, byte ptr [esp + 0x1f]

        $sequence_7 = { f20f118ec8000000 f20f1186c0000000 89e0 8908 e8???????? 83ec04 eb00 }
            // n = 7, score = 200
            //   f20f118ec8000000     | movsd               qword ptr [esi + 0xc8], xmm1
            //   f20f1186c0000000     | movsd               qword ptr [esi + 0xc0], xmm0
            //   89e0                 | mov                 eax, esp
            //   8908                 | mov                 dword ptr [eax], ecx
            //   e8????????           |                     
            //   83ec04               | sub                 esp, 4
            //   eb00                 | jmp                 2

        $sequence_8 = { eb0a c644246300 e9???????? 8d4c2468 8d842440030000 890c24 89442404 }
            // n = 7, score = 200
            //   eb0a                 | jmp                 0xc
            //   c644246300           | mov                 byte ptr [esp + 0x63], 0
            //   e9????????           |                     
            //   8d4c2468             | lea                 ecx, [esp + 0x68]
            //   8d842440030000       | lea                 eax, [esp + 0x340]
            //   890c24               | mov                 dword ptr [esp], ecx
            //   89442404             | mov                 dword ptr [esp + 4], eax

        $sequence_9 = { eb16 8b8d00ffffff 89e0 8908 e8???????? eb00 e9???????? }
            // n = 7, score = 200
            //   eb16                 | jmp                 0x18
            //   8b8d00ffffff         | mov                 ecx, dword ptr [ebp - 0x100]
            //   89e0                 | mov                 eax, esp
            //   8908                 | mov                 dword ptr [eax], ecx
            //   e8????????           |                     
            //   eb00                 | jmp                 2
            //   e9????????           |                     

    condition:
        7 of them and filesize < 10952704
}