rule win_putabmow_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-09-17"
        version = "1"
        description = "Detects win.putabmow."
        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.putabmow"
        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 = { 8d84247c040000 50 8d842478060000 50 8d8c240c030000 e8???????? 8bc8 }
            // n = 7, score = 100
            //   8d84247c040000       | lea                 eax, [esp + 0x47c]
            //   50                   | push                eax
            //   8d842478060000       | lea                 eax, [esp + 0x678]
            //   50                   | push                eax
            //   8d8c240c030000       | lea                 ecx, [esp + 0x30c]
            //   e8????????           |                     
            //   8bc8                 | mov                 ecx, eax

        $sequence_1 = { 8d8c24bc060000 e8???????? c68424200b000044 8d8c24ac070000 e8???????? c68424200b000043 8d8c24c4040000 }
            // n = 7, score = 100
            //   8d8c24bc060000       | lea                 ecx, [esp + 0x6bc]
            //   e8????????           |                     
            //   c68424200b000044     | mov                 byte ptr [esp + 0xb20], 0x44
            //   8d8c24ac070000       | lea                 ecx, [esp + 0x7ac]
            //   e8????????           |                     
            //   c68424200b000043     | mov                 byte ptr [esp + 0xb20], 0x43
            //   8d8c24c4040000       | lea                 ecx, [esp + 0x4c4]

        $sequence_2 = { 004104 ee 004104 ed 004104 ed 004104 }
            // n = 7, score = 100
            //   004104               | add                 byte ptr [ecx + 4], al
            //   ee                   | out                 dx, al
            //   004104               | add                 byte ptr [ecx + 4], al
            //   ed                   | in                  eax, dx
            //   004104               | add                 byte ptr [ecx + 4], al
            //   ed                   | in                  eax, dx
            //   004104               | add                 byte ptr [ecx + 4], al

        $sequence_3 = { e8???????? c645fc09 8d8d48ffffff 83bd5cffffff10 8b8558ffffff 0f438d48ffffff ffb508ffffff }
            // n = 7, score = 100
            //   e8????????           |                     
            //   c645fc09             | mov                 byte ptr [ebp - 4], 9
            //   8d8d48ffffff         | lea                 ecx, [ebp - 0xb8]
            //   83bd5cffffff10       | cmp                 dword ptr [ebp - 0xa4], 0x10
            //   8b8558ffffff         | mov                 eax, dword ptr [ebp - 0xa8]
            //   0f438d48ffffff       | cmovae              ecx, dword ptr [ebp - 0xb8]
            //   ffb508ffffff         | push                dword ptr [ebp - 0xf8]

        $sequence_4 = { e8???????? 8bc8 89442420 e8???????? 50 8d8c2460060000 e8???????? }
            // n = 7, score = 100
            //   e8????????           |                     
            //   8bc8                 | mov                 ecx, eax
            //   89442420             | mov                 dword ptr [esp + 0x20], eax
            //   e8????????           |                     
            //   50                   | push                eax
            //   8d8c2460060000       | lea                 ecx, [esp + 0x660]
            //   e8????????           |                     

        $sequence_5 = { 0f42c6 50 e8???????? 8bc8 83c404 85c9 7516 }
            // n = 7, score = 100
            //   0f42c6               | cmovb               eax, esi
            //   50                   | push                eax
            //   e8????????           |                     
            //   8bc8                 | mov                 ecx, eax
            //   83c404               | add                 esp, 4
            //   85c9                 | test                ecx, ecx
            //   7516                 | jne                 0x18

        $sequence_6 = { c1e81a c1e914 83e13f 0fb68030f97200 884702 0fb68130f97200 }
            // n = 6, score = 100
            //   c1e81a               | shr                 eax, 0x1a
            //   c1e914               | shr                 ecx, 0x14
            //   83e13f               | and                 ecx, 0x3f
            //   0fb68030f97200       | movzx               eax, byte ptr [eax + 0x72f930]
            //   884702               | mov                 byte ptr [edi + 2], al
            //   0fb68130f97200       | movzx               eax, byte ptr [ecx + 0x72f930]

        $sequence_7 = { 899590feffff 57 898d94feffff 8d859cfeffff 899d98feffff be58010000 }
            // n = 6, score = 100
            //   899590feffff         | mov                 dword ptr [ebp - 0x170], edx
            //   57                   | push                edi
            //   898d94feffff         | mov                 dword ptr [ebp - 0x16c], ecx
            //   8d859cfeffff         | lea                 eax, [ebp - 0x164]
            //   899d98feffff         | mov                 dword ptr [ebp - 0x168], ebx
            //   be58010000           | mov                 esi, 0x158

        $sequence_8 = { 5b 8be5 5d c20c00 8b75ec 837e1408 720a }
            // n = 7, score = 100
            //   5b                   | pop                 ebx
            //   8be5                 | mov                 esp, ebp
            //   5d                   | pop                 ebp
            //   c20c00               | ret                 0xc
            //   8b75ec               | mov                 esi, dword ptr [ebp - 0x14]
            //   837e1408             | cmp                 dword ptr [esi + 0x14], 8
            //   720a                 | jb                  0xc

        $sequence_9 = { e8???????? 59 c3 8b85f4f4ffff 2500020000 0f8415000000 81a5f4f4fffffffdffff }
            // n = 7, score = 100
            //   e8????????           |                     
            //   59                   | pop                 ecx
            //   c3                   | ret                 
            //   8b85f4f4ffff         | mov                 eax, dword ptr [ebp - 0xb0c]
            //   2500020000           | and                 eax, 0x200
            //   0f8415000000         | je                  0x1b
            //   81a5f4f4fffffffdffff     | and    dword ptr [ebp - 0xb0c], 0xfffffdff

    condition:
        7 of them and filesize < 704512
}