rule win_tinyturla_ng_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-09-17"
        version = "1"
        description = "Detects win.tinyturla_ng."
        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.tinyturla_ng"
        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 = { 488d542420 488d8c2430010000 ff15???????? 488d442420 49c7c0ffffffff 6690 49ffc0 }
            // n = 7, score = 200
            //   488d542420           | dec                 eax
            //   488d8c2430010000     | lea                 edx, [0x1569c]
            //   ff15????????         |                     
            //   488d442420           | dec                 esp
            //   49c7c0ffffffff       | lea                 ecx, [0x156b0]
            //   6690                 | mov                 ecx, 0x14
            //   49ffc0               | dec                 esp

        $sequence_1 = { 7411 488b4350 833800 7e08 0fb609 e9???????? }
            // n = 6, score = 200
            //   7411                 | dec                 ax
            //   488b4350             | movd                eax, mm0
            //   833800               | dec                 esp
            //   7e08                 | lea                 ecx, [0x156a2]
            //   0fb609               | mov                 ecx, 2
            //   e9????????           |                     

        $sequence_2 = { 480f43542458 488d4db8 e8???????? 90 48ffc3 4c897c2438 }
            // n = 6, score = 200
            //   480f43542458         | mov                 eax, edi
            //   488d4db8             | dec                 eax
            //   e8????????           |                     
            //   90                   | mov                 ecx, eax
            //   48ffc3               | xor                 edx, edx
            //   4c897c2438           | inc                 esp

        $sequence_3 = { e8???????? 84c0 400f94c6 488b542438 4883fa10 722e }
            // n = 6, score = 200
            //   e8????????           |                     
            //   84c0                 | dec                 eax
            //   400f94c6             | mov                 edx, dword ptr [ebp - 0x38]
            //   488b542438           | mov                 byte ptr [8], 0
            //   4883fa10             | dec                 esp
            //   722e                 | mov                 dword ptr [ebx], esi

        $sequence_4 = { 0f87d9000000 e8???????? 4c897dd8 48c745e007000000 6644897dc8 488b5580 4883fa10 }
            // n = 7, score = 200
            //   0f87d9000000         | mov                 esi, dword ptr [esi]
            //   e8????????           |                     
            //   4c897dd8             | dec                 eax
            //   48c745e007000000     | mov                 dword ptr [ebp - 0x10], edi
            //   6644897dc8           | dec                 eax
            //   488b5580             | mov                 dword ptr [ebp], edi
            //   4883fa10             | dec                 eax

        $sequence_5 = { 32c0 e9???????? 488b7c1f50 4885ff 0f849a000000 483bfb 0f8491000000 }
            // n = 7, score = 200
            //   32c0                 | dec                 eax
            //   e9????????           |                     
            //   488b7c1f50           | cmp                 edx, eax
            //   4885ff               | ja                  0x10f
            //   0f849a000000         | mov                 edx, 1
            //   483bfb               | jne                 0x1d
            //   0f8491000000         | mov                 al, 1

        $sequence_6 = { 48896c2430 c744242880000000 ba00000080 488bcb c744242004000000 458d4101 ff15???????? }
            // n = 7, score = 200
            //   48896c2430           | mov                 dword ptr [esp + 0x30], esi
            //   c744242880000000     | dec                 eax
            //   ba00000080           | mov                 dword ptr [ebp - 0x41], eax
            //   488bcb               | dec                 eax
            //   c744242004000000     | test                eax, eax
            //   458d4101             | je                  0x2cb
            //   ff15????????         |                     

        $sequence_7 = { 488d45d8 483bd8 7453 488b5318 4883fa10 }
            // n = 5, score = 200
            //   488d45d8             | jmp                 0x4ba
            //   483bd8               | dec                 eax
            //   7453                 | cmp                 ebx, ecx
            //   488b5318             | dec                 eax
            //   4883fa10             | cmovb               ebx, ecx

        $sequence_8 = { 488be8 458b07 33d2 488bc8 e8???????? c7464800100000 }
            // n = 6, score = 200
            //   488be8               | movzx               ecx, byte ptr [esp + 0x90]
            //   458b07               | dec                 esp
            //   33d2                 | lea                 eax, [0x165d9]
            //   488bc8               | dec                 eax
            //   e8????????           |                     
            //   c7464800100000       | mov                 ecx, dword ptr [ecx + 0x240]

        $sequence_9 = { 48c745200f000000 44887d08 4c897c2468 4c897c2478 48c745800f000000 44887c2468 498bd0 }
            // n = 7, score = 200
            //   48c745200f000000     | dec                 eax
            //   44887d08             | lea                 eax, [0x2f338]
            //   4c897c2468           | dec                 eax
            //   4c897c2478           | mov                 dword ptr [ebx], eax
            //   48c745800f000000     | dec                 eax
            //   44887c2468           | mov                 eax, ebx
            //   498bd0               | dec                 eax

    condition:
        7 of them and filesize < 635904
}