rule win_pandabanker_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-05-04"
        version = "1"
        description = "Detects win.pandabanker."
        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.pandabanker"
        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 = { 8bf1 85f6 7418 8b4e04 e8???????? }
            // n = 5, score = 8600
            //   8bf1                 | mov                 esi, ecx
            //   85f6                 | test                esi, esi
            //   7418                 | je                  0x1a
            //   8b4e04               | mov                 ecx, dword ptr [esi + 4]
            //   e8????????           |                     

        $sequence_1 = { 8d5b04 47 3bfe 7ce8 }
            // n = 4, score = 8600
            //   8d5b04               | lea                 ebx, [ebx + 4]
            //   47                   | inc                 edi
            //   3bfe                 | cmp                 edi, esi
            //   7ce8                 | jl                  0xffffffea

        $sequence_2 = { 7510 46 83fe64 72a7 32c0 5f 5e }
            // n = 7, score = 8600
            //   7510                 | jne                 0x12
            //   46                   | inc                 esi
            //   83fe64               | cmp                 esi, 0x64
            //   72a7                 | jb                  0xffffffa9
            //   32c0                 | xor                 al, al
            //   5f                   | pop                 edi
            //   5e                   | pop                 esi

        $sequence_3 = { 8b742418 8d3c28 8bcb f3a4 }
            // n = 4, score = 8600
            //   8b742418             | mov                 esi, dword ptr [esp + 0x18]
            //   8d3c28               | lea                 edi, [eax + ebp]
            //   8bcb                 | mov                 ecx, ebx
            //   f3a4                 | rep movsb           byte ptr es:[edi], byte ptr [esi]

        $sequence_4 = { 2bc1 3be8 0f8c3fffffff 8bd3 2b5704 }
            // n = 5, score = 8600
            //   2bc1                 | sub                 eax, ecx
            //   3be8                 | cmp                 ebp, eax
            //   0f8c3fffffff         | jl                  0xffffff45
            //   8bd3                 | mov                 edx, ebx
            //   2b5704               | sub                 edx, dword ptr [edi + 4]

        $sequence_5 = { 894104 3b7708 7505 8b0e 894f08 }
            // n = 5, score = 8600
            //   894104               | mov                 dword ptr [ecx + 4], eax
            //   3b7708               | cmp                 esi, dword ptr [edi + 8]
            //   7505                 | jne                 7
            //   8b0e                 | mov                 ecx, dword ptr [esi]
            //   894f08               | mov                 dword ptr [edi + 8], ecx

        $sequence_6 = { 85f6 7e26 8be8 8d831c020000 }
            // n = 4, score = 8600
            //   85f6                 | test                esi, esi
            //   7e26                 | jle                 0x28
            //   8be8                 | mov                 ebp, eax
            //   8d831c020000         | lea                 eax, [ebx + 0x21c]

        $sequence_7 = { 42 89848f1c020000 3bd3 7ce8 5f 5e }
            // n = 6, score = 8600
            //   42                   | inc                 edx
            //   89848f1c020000       | mov                 dword ptr [edi + ecx*4 + 0x21c], eax
            //   3bd3                 | cmp                 edx, ebx
            //   7ce8                 | jl                  0xffffffea
            //   5f                   | pop                 edi
            //   5e                   | pop                 esi

        $sequence_8 = { 894714 ebc2 8a06 3c22 }
            // n = 4, score = 8600
            //   894714               | mov                 dword ptr [edi + 0x14], eax
            //   ebc2                 | jmp                 0xffffffc4
            //   8a06                 | mov                 al, byte ptr [esi]
            //   3c22                 | cmp                 al, 0x22

        $sequence_9 = { e8???????? 8bd1 6a02 59 8d1442 }
            // n = 5, score = 8600
            //   e8????????           |                     
            //   8bd1                 | mov                 edx, ecx
            //   6a02                 | push                2
            //   59                   | pop                 ecx
            //   8d1442               | lea                 edx, [edx + eax*2]

    condition:
        7 of them and filesize < 417792
}