rule win_pandora_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-05-04"
        version = "1"
        description = "Detects win.pandora."
        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.pandora"
        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 = { 488bc8 4c8975d0 4c03e7 4889442458 e8???????? 85c0 0f840e040000 }
            // n = 7, score = 100
            //   488bc8               | dec                 eax
            //   4c8975d0             | mov                 dword ptr [esi + 0x18], 0x30
            //   4c03e7               | dec                 eax
            //   4889442458           | add                 esp, 0x40
            //   e8????????           |                     
            //   85c0                 | pop                 ebp
            //   0f840e040000         | ret                 

        $sequence_1 = { f30f7f0b 4883c310 4883c510 4883ef10 0f1136 4983ef10 0f8577ffffff }
            // n = 7, score = 100
            //   f30f7f0b             | inc                 esp
            //   4883c310             | xor                 esp, dword ptr [esi + ecx*4 + 0x709b0]
            //   4883c510             | movzx               ecx, byte ptr [ebp - 4]
            //   4883ef10             | inc                 esp
            //   0f1136               | xor                 esp, dword ptr [esi + ecx*4 + 0x70db0]
            //   4983ef10             | inc                 esp
            //   0f8577ffffff         | xor                 esp, dword ptr [eax + 0x1c]

        $sequence_2 = { b940000000 418bc0 83e03f 2bc8 48d3cf 488d0d6683fcff 4933f8 }
            // n = 7, score = 100
            //   b940000000           | inc                 ebx
            //   418bc0               | mov                 edi, dword ptr [ebp + eax*4 + 0x701b0]
            //   83e03f               | inc                 ecx
            //   2bc8                 | xor                 edi, dword ptr [ebp + edx*4 + 0x711b0]
            //   48d3cf               | movzx               edx, cl
            //   488d0d6683fcff       | movzx               ecx, byte ptr [ebp - 0x20]
            //   4933f8               | inc                 ecx

        $sequence_3 = { c3 bad8000000 b901000000 e8???????? 48894308 4885c0 748a }
            // n = 7, score = 100
            //   c3                   | and                 edx, edi
            //   bad8000000           | not                 ecx
            //   b901000000           | inc                 esp
            //   e8????????           |                     
            //   48894308             | or                  edx, eax
            //   4885c0               | inc                 ecx
            //   748a                 | and                 ecx, ecx

        $sequence_4 = { 4885c0 0f84fa000000 488b4910 4885c9 0f84ed000000 48897c2470 0fb6780d }
            // n = 7, score = 100
            //   4885c0               | or                  cl, dl
            //   0f84fa000000         | inc                 ecx
            //   488b4910             | sub                 eax, eax
            //   4885c9               | shr                 eax, 8
            //   0f84ed000000         | not                 al
            //   48897c2470           | inc                 ecx
            //   0fb6780d             | and                 al, dl

        $sequence_5 = { 418bd2 448b64242c 4533ec d1c0 89442424 418bc0 }
            // n = 6, score = 100
            //   418bd2               | mov                 dword ptr [ebp + 0x40], edi
            //   448b64242c           | dec                 eax
            //   4533ec               | add                 edi, 0x18
            //   d1c0                 | test                ebx, ebx
            //   89442424             | jne                 0x1c36
            //   418bc0               | dec                 esp

        $sequence_6 = { 498d4e30 e8???????? 8bd8 4c8ba424e0000000 4c8bbc24e8000000 488d4dd7 e8???????? }
            // n = 7, score = 100
            //   498d4e30             | sar                 edx, cl
            //   e8????????           |                     
            //   8bd8                 | jne                 0x1215
            //   4c8ba424e0000000     | dec                 eax
            //   4c8bbc24e8000000     | lea                 ecx, [edi + 0x68]
            //   488d4dd7             | dec                 eax
            //   e8????????           |                     

        $sequence_7 = { ffc1 894d60 83f80a 0f8f2a030000 8bf2 8bc6 ffc6 }
            // n = 7, score = 100
            //   ffc1                 | xor                 edx, edx
            //   894d60               | inc                 ebp
            //   83f80a               | add                 ecx, edx
            //   0f8f2a030000         | inc                 ebp
            //   8bf2                 | or                  eax, ecx
            //   8bc6                 | inc                 esp
            //   ffc6                 | mov                 dword ptr [esp + 0x80], ecx

        $sequence_8 = { 488d6c24e0 4881ec20010000 4533ff c744242801000000 44393d???????? 488d3d17340600 0f57c0 }
            // n = 7, score = 100
            //   488d6c24e0           | mov                 eax, edx
            //   4881ec20010000       | inc                 ecx
            //   4533ff               | not                 eax
            //   c744242801000000     | inc                 ecx
            //   44393d????????       |                     
            //   488d3d17340600       | add                 edi, esi
            //   0f57c0               | inc                 ebp

        $sequence_9 = { 0f8580000000 41be80b2ffff 4c8bbc2498000000 483bafe8000000 488bf3 4c8b6c2458 480f45f5 }
            // n = 7, score = 100
            //   0f8580000000         | inc                 ecx
            //   41be80b2ffff         | pop                 ebp
            //   4c8bbc2498000000     | dec                 eax
            //   483bafe8000000       | mov                 ebp, dword ptr [esp + 0x70]
            //   488bf3               | dec                 esp
            //   4c8b6c2458           | sub                 esi, esi
            //   480f45f5             | dec                 eax

    condition:
        7 of them and filesize < 1032192
}