rule win_slimagent_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-05-04"
        version = "1"
        description = "Detects win.slimagent."
        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.slimagent"
        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 = { 458b949b14350400 eb08 458b949bdc340400 41ffc2 448d46ff bf1f85eb51 }
            // n = 6, score = 100
            //   458b949b14350400     | sub                 edx, eax
            //   eb08                 | mov                 eax, dword ptr [edx - 4]
            //   458b949bdc340400     | shr                 eax, cl
            //   41ffc2               | dec                 ecx
            //   448d46ff             | mov                 dword ptr [eax + 8], edx
            //   bf1f85eb51           | inc                 ecx

        $sequence_1 = { e8???????? 488d4df8 e8???????? 488d1543720200 488d4df8 e8???????? cc }
            // n = 7, score = 100
            //   e8????????           |                     
            //   488d4df8             | dec                 eax
            //   e8????????           |                     
            //   488d1543720200       | lea                 eax, [0x271d4]
            //   488d4df8             | dec                 eax
            //   e8????????           |                     
            //   cc                   | mov                 dword ptr [ebx], eax

        $sequence_2 = { e8???????? cc 488d4c2438 e8???????? 488d15bbc20200 488d4c2438 e8???????? }
            // n = 7, score = 100
            //   e8????????           |                     
            //   cc                   | lea                 eax, [esi + ebx]
            //   488d4c2438           | inc                 edx
            //   e8????????           |                     
            //   488d15bbc20200       | mov                 byte ptr [eax], 0
            //   488d4c2438           | jmp                 0x255
            //   e8????????           |                     

        $sequence_3 = { 488b4f10 48894daf 498bc5 482bc2 483bc1 0f82f3030000 49837f1808 }
            // n = 7, score = 100
            //   488b4f10             | mov                 ebx, dword ptr [esp + 0x68]
            //   48894daf             | dec                 eax
            //   498bc5               | mov                 dword ptr [esi + 0x10], eax
            //   482bc2               | dec                 eax
            //   483bc1               | add                 esp, 0x30
            //   0f82f3030000         | inc                 ecx
            //   49837f1808           | pop                 edi

        $sequence_4 = { 0f85e3000000 4d3bc1 0f84d0000000 8b7500 498b9cf7e0550500 4885db 740b }
            // n = 7, score = 100
            //   0f85e3000000         | movups              xmmword ptr [edx], xmm0
            //   4d3bc1               | dec                 eax
            //   0f84d0000000         | mov                 edx, dword ptr [ebp - 0x18]
            //   8b7500               | dec                 eax
            //   498b9cf7e0550500     | lea                 eax, [0x35ce9]
            //   4885db               | dec                 eax
            //   740b                 | mov                 dword ptr [ebx], eax

        $sequence_5 = { 8bd7 4c8bf7 498b84c3b05c0500 4e8d0cfd3e000000 4c03c8 498bc1 403838 }
            // n = 7, score = 100
            //   8bd7                 | mov                 al, 1
            //   4c8bf7               | jmp                 0x6b
            //   498b84c3b05c0500     | xor                 al, al
            //   4e8d0cfd3e000000     | mov                 ecx, dword ptr [esp + 0x50]
            //   4c03c8               | dec                 esp
            //   498bc1               | mov                 edx, dword ptr [ebp + 0x10]
            //   403838               | mov                 eax, edi

        $sequence_6 = { 498bd9 498bf8 8bf2 4c8d0d99020100 488be9 4c8d0587020100 488d1588020100 }
            // n = 7, score = 100
            //   498bd9               | nop                 
            //   498bf8               | dec                 ecx
            //   8bf2                 | inc                 eax
            //   4c8d0d99020100       | inc                 dx
            //   488be9               | cmp                 dword ptr [edx + eax*2], 0
            //   4c8d0587020100       | dec                 eax
            //   488d1588020100       | lea                 ecx, [edi + 0x58]

        $sequence_7 = { 488b4c2460 ff15???????? 488b4dc0 ff15???????? 0f1045a0 }
            // n = 5, score = 100
            //   488b4c2460           | jmp                 0xc3f
            //   ff15????????         |                     
            //   488b4dc0             | dec                 eax
            //   ff15????????         |                     
            //   0f1045a0             | mov                 edi, ecx

        $sequence_8 = { 4885db 740b 493bde 0f8599000000 eb6b 4d8bbcf788130400 33d2 }
            // n = 7, score = 100
            //   4885db               | dec                 eax
            //   740b                 | sub                 esp, 0x20
            //   493bde               | dec                 eax
            //   0f8599000000         | lea                 eax, [0x2742f]
            //   eb6b                 | dec                 eax
            //   4d8bbcf788130400     | mov                 ebx, ecx
            //   33d2                 | dec                 eax

        $sequence_9 = { ff15???????? 488bc8 488d15202c0300 ff15???????? 488bf0 4885c0 745c }
            // n = 7, score = 100
            //   ff15????????         |                     
            //   488bc8               | dec                 ecx
            //   488d15202c0300       | mov                 ecx, esi
            //   ff15????????         |                     
            //   488bf0               | dec                 esp
            //   4885c0               | mov                 ebp, dword ptr [ebp + 0x58]
            //   745c                 | dec                 eax

    condition:
        7 of them and filesize < 769024
}