rule win_rover_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-09-17"
        version = "1"
        description = "Detects win.rover."
        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.rover"
        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 = { 51 52 50 e8???????? 8b4c2424 83c40c bf03000000 }
            // n = 7, score = 100
            //   51                   | push                ecx
            //   52                   | push                edx
            //   50                   | push                eax
            //   e8????????           |                     
            //   8b4c2424             | mov                 ecx, dword ptr [esp + 0x24]
            //   83c40c               | add                 esp, 0xc
            //   bf03000000           | mov                 edi, 3

        $sequence_1 = { 8b83a8040000 8d5001 8da42400000000 8a08 40 84c9 75f9 }
            // n = 7, score = 100
            //   8b83a8040000         | mov                 eax, dword ptr [ebx + 0x4a8]
            //   8d5001               | lea                 edx, [eax + 1]
            //   8da42400000000       | lea                 esp, [esp]
            //   8a08                 | mov                 cl, byte ptr [eax]
            //   40                   | inc                 eax
            //   84c9                 | test                cl, cl
            //   75f9                 | jne                 0xfffffffb

        $sequence_2 = { 8a18 0fb6c3 50 ff15???????? 83c404 85c0 0f8454020000 }
            // n = 7, score = 100
            //   8a18                 | mov                 bl, byte ptr [eax]
            //   0fb6c3               | movzx               eax, bl
            //   50                   | push                eax
            //   ff15????????         |                     
            //   83c404               | add                 esp, 4
            //   85c0                 | test                eax, eax
            //   0f8454020000         | je                  0x25a

        $sequence_3 = { 83ec10 837c241800 8b442414 8b08 c7042401000000 894c2404 7407 }
            // n = 7, score = 100
            //   83ec10               | sub                 esp, 0x10
            //   837c241800           | cmp                 dword ptr [esp + 0x18], 0
            //   8b442414             | mov                 eax, dword ptr [esp + 0x14]
            //   8b08                 | mov                 ecx, dword ptr [eax]
            //   c7042401000000       | mov                 dword ptr [esp], 1
            //   894c2404             | mov                 dword ptr [esp + 4], ecx
            //   7407                 | je                  9

        $sequence_4 = { 750f 68???????? 8d542408 52 e9???????? 83fe62 750f }
            // n = 7, score = 100
            //   750f                 | jne                 0x11
            //   68????????           |                     
            //   8d542408             | lea                 edx, [esp + 8]
            //   52                   | push                edx
            //   e9????????           |                     
            //   83fe62               | cmp                 esi, 0x62
            //   750f                 | jne                 0x11

        $sequence_5 = { ff25???????? 8d8dccfdffff ff25???????? 8b8dbcfdffff ff25???????? 8b8dc4fdffff ff25???????? }
            // n = 7, score = 100
            //   ff25????????         |                     
            //   8d8dccfdffff         | lea                 ecx, [ebp - 0x234]
            //   ff25????????         |                     
            //   8b8dbcfdffff         | mov                 ecx, dword ptr [ebp - 0x244]
            //   ff25????????         |                     
            //   8b8dc4fdffff         | mov                 ecx, dword ptr [ebp - 0x23c]
            //   ff25????????         |                     

        $sequence_6 = { 8910 8b4c2410 64890d00000000 59 5f 5e 5b }
            // n = 7, score = 100
            //   8910                 | mov                 dword ptr [eax], edx
            //   8b4c2410             | mov                 ecx, dword ptr [esp + 0x10]
            //   64890d00000000       | mov                 dword ptr fs:[0], ecx
            //   59                   | pop                 ecx
            //   5f                   | pop                 edi
            //   5e                   | pop                 esi
            //   5b                   | pop                 ebx

        $sequence_7 = { 8d542408 52 e9???????? 83fe58 750f 68???????? 8d442408 }
            // n = 7, score = 100
            //   8d542408             | lea                 edx, [esp + 8]
            //   52                   | push                edx
            //   e9????????           |                     
            //   83fe58               | cmp                 esi, 0x58
            //   750f                 | jne                 0x11
            //   68????????           |                     
            //   8d442408             | lea                 eax, [esp + 8]

        $sequence_8 = { ff15???????? 83c404 85c0 0f84eaf8ffff c7450805000000 e9???????? 017d14 }
            // n = 7, score = 100
            //   ff15????????         |                     
            //   83c404               | add                 esp, 4
            //   85c0                 | test                eax, eax
            //   0f84eaf8ffff         | je                  0xfffff8f0
            //   c7450805000000       | mov                 dword ptr [ebp + 8], 5
            //   e9????????           |                     
            //   017d14               | add                 dword ptr [ebp + 0x14], edi

        $sequence_9 = { ff15???????? 8b4c2420 51 ff15???????? 8b54243c 8b442434 }
            // n = 6, score = 100
            //   ff15????????         |                     
            //   8b4c2420             | mov                 ecx, dword ptr [esp + 0x20]
            //   51                   | push                ecx
            //   ff15????????         |                     
            //   8b54243c             | mov                 edx, dword ptr [esp + 0x3c]
            //   8b442434             | mov                 eax, dword ptr [esp + 0x34]

    condition:
        7 of them and filesize < 704512
}