rule win_stresspaint_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-09-17"
        version = "1"
        description = "Detects win.stresspaint."
        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.stresspaint"
        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 = { 0103 014510 294514 83665800 }
            // n = 4, score = 100
            //   0103                 | add                 dword ptr [ebx], eax
            //   014510               | add                 dword ptr [ebp + 0x10], eax
            //   294514               | sub                 dword ptr [ebp + 0x14], eax
            //   83665800             | and                 dword ptr [esi + 0x58], 0

        $sequence_1 = { 8d54ae58 8806 84c0 884e01 }
            // n = 4, score = 100
            //   8d54ae58             | lea                 edx, [esi + ebp*4 + 0x58]
            //   8806                 | mov                 byte ptr [esi], al
            //   84c0                 | test                al, al
            //   884e01               | mov                 byte ptr [esi + 1], cl

        $sequence_2 = { 0106 83560400 837d1c00 7494 }
            // n = 4, score = 100
            //   0106                 | add                 dword ptr [esi], eax
            //   83560400             | adc                 dword ptr [esi + 4], 0
            //   837d1c00             | cmp                 dword ptr [ebp + 0x1c], 0
            //   7494                 | je                  0xffffff96

        $sequence_3 = { 8d5514 52 e8???????? 8b4b04 }
            // n = 4, score = 100
            //   8d5514               | lea                 edx, [ebp + 0x14]
            //   52                   | push                edx
            //   e8????????           |                     
            //   8b4b04               | mov                 ecx, dword ptr [ebx + 4]

        $sequence_4 = { 0108 8b8e44010000 114804 8b4f18 }
            // n = 4, score = 100
            //   0108                 | add                 dword ptr [eax], ecx
            //   8b8e44010000         | mov                 ecx, dword ptr [esi + 0x144]
            //   114804               | adc                 dword ptr [eax + 4], ecx
            //   8b4f18               | mov                 ecx, dword ptr [edi + 0x18]

        $sequence_5 = { 8d5501 894c2430 895348 8b4f10 }
            // n = 4, score = 100
            //   8d5501               | lea                 edx, [ebp + 1]
            //   894c2430             | mov                 dword ptr [esp + 0x30], ecx
            //   895348               | mov                 dword ptr [ebx + 0x48], edx
            //   8b4f10               | mov                 ecx, dword ptr [edi + 0x10]

        $sequence_6 = { 8d5501 89542434 8bd7 2bd1 }
            // n = 4, score = 100
            //   8d5501               | lea                 edx, [ebp + 1]
            //   89542434             | mov                 dword ptr [esp + 0x34], edx
            //   8bd7                 | mov                 edx, edi
            //   2bd1                 | sub                 edx, ecx

        $sequence_7 = { 8d5502 3bd3 7f31 8b4c2420 }
            // n = 4, score = 100
            //   8d5502               | lea                 edx, [ebp + 2]
            //   3bd3                 | cmp                 edx, ebx
            //   7f31                 | jg                  0x33
            //   8b4c2420             | mov                 ecx, dword ptr [esp + 0x20]

        $sequence_8 = { 0107 83570400 85c9 7508 }
            // n = 4, score = 100
            //   0107                 | add                 dword ptr [edi], eax
            //   83570400             | adc                 dword ptr [edi + 4], 0
            //   85c9                 | test                ecx, ecx
            //   7508                 | jne                 0xa

        $sequence_9 = { 010b 8945fc 8bc2 83530400 }
            // n = 4, score = 100
            //   010b                 | add                 dword ptr [ebx], ecx
            //   8945fc               | mov                 dword ptr [ebp - 4], eax
            //   8bc2                 | mov                 eax, edx
            //   83530400             | adc                 dword ptr [ebx + 4], 0

        $sequence_10 = { 0103 ebaa 8b442408 56 }
            // n = 4, score = 100
            //   0103                 | add                 dword ptr [ebx], eax
            //   ebaa                 | jmp                 0xffffffac
            //   8b442408             | mov                 eax, dword ptr [esp + 8]
            //   56                   | push                esi

        $sequence_11 = { 8d54ad00 8d6c90ec 8b7c246c 8b9c2410030000 83c514 }
            // n = 5, score = 100
            //   8d54ad00             | lea                 edx, [ebp + ebp*4]
            //   8d6c90ec             | lea                 ebp, [eax + edx*4 - 0x14]
            //   8b7c246c             | mov                 edi, dword ptr [esp + 0x6c]
            //   8b9c2410030000       | mov                 ebx, dword ptr [esp + 0x310]
            //   83c514               | add                 ebp, 0x14

        $sequence_12 = { 8d5501 52 50 6a67 }
            // n = 4, score = 100
            //   8d5501               | lea                 edx, [ebp + 1]
            //   52                   | push                edx
            //   50                   | push                eax
            //   6a67                 | push                0x67

        $sequence_13 = { 8d54be14 66894608 8b442414 895610 }
            // n = 4, score = 100
            //   8d54be14             | lea                 edx, [esi + edi*4 + 0x14]
            //   66894608             | mov                 word ptr [esi + 8], ax
            //   8b442414             | mov                 eax, dword ptr [esp + 0x14]
            //   895610               | mov                 dword ptr [esi + 0x10], edx

        $sequence_14 = { 0107 115f04 3bcb 7508 }
            // n = 4, score = 100
            //   0107                 | add                 dword ptr [edi], eax
            //   115f04               | adc                 dword ptr [edi + 4], ebx
            //   3bcb                 | cmp                 ecx, ebx
            //   7508                 | jne                 0xa

        $sequence_15 = { 0113 8b4e24 2b4df8 015510 }
            // n = 4, score = 100
            //   0113                 | add                 dword ptr [ebx], edx
            //   8b4e24               | mov                 ecx, dword ptr [esi + 0x24]
            //   2b4df8               | sub                 ecx, dword ptr [ebp - 8]
            //   015510               | add                 dword ptr [ebp + 0x10], edx

    condition:
        7 of them and filesize < 1155072
}