rule win_pandabanker_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2022-08-05"
        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 = "20220805"
        malpedia_hash = "6ec06c64bcfdbeda64eff021c766b4ce34542b71"
        malpedia_version = "20220808"
        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 = { 3bf7 75d6 83fd1c 751d 33f6 6a20 }
            // n = 6, score = 8600
            //   3bf7                 | cmp                 esi, edi
            //   75d6                 | jne                 0xffffffd8
            //   83fd1c               | cmp                 ebp, 0x1c
            //   751d                 | jne                 0x1f
            //   33f6                 | xor                 esi, esi
            //   6a20                 | push                0x20

        $sequence_1 = { 5d 5b 59 c3 8b4724 }
            // n = 5, score = 8600
            //   5d                   | pop                 ebp
            //   5b                   | pop                 ebx
            //   59                   | pop                 ecx
            //   c3                   | ret                 
            //   8b4724               | mov                 eax, dword ptr [edi + 0x24]

        $sequence_2 = { 83ec3c 53 56 57 6a3c 8bda 8d7c2410 }
            // n = 7, score = 8600
            //   83ec3c               | sub                 esp, 0x3c
            //   53                   | push                ebx
            //   56                   | push                esi
            //   57                   | push                edi
            //   6a3c                 | push                0x3c
            //   8bda                 | mov                 ebx, edx
            //   8d7c2410             | lea                 edi, [esp + 0x10]

        $sequence_3 = { 45 83c304 3b6f18 72de 33c0 5f 5e }
            // n = 7, score = 8600
            //   45                   | inc                 ebp
            //   83c304               | add                 ebx, 4
            //   3b6f18               | cmp                 ebp, dword ptr [edi + 0x18]
            //   72de                 | jb                  0xffffffe0
            //   33c0                 | xor                 eax, eax
            //   5f                   | pop                 edi
            //   5e                   | pop                 esi

        $sequence_4 = { 84c0 7424 8b4f04 e8???????? 8bc8 }
            // n = 5, score = 8600
            //   84c0                 | test                al, al
            //   7424                 | je                  0x26
            //   8b4f04               | mov                 ecx, dword ptr [edi + 4]
            //   e8????????           |                     
            //   8bc8                 | mov                 ecx, eax

        $sequence_5 = { a900010000 7404 6a10 eb09 a900020000 }
            // n = 5, score = 8600
            //   a900010000           | test                eax, 0x100
            //   7404                 | je                  6
            //   6a10                 | push                0x10
            //   eb09                 | jmp                 0xb
            //   a900020000           | test                eax, 0x200

        $sequence_6 = { 33c0 33d2 89442418 3bfd 7359 }
            // n = 5, score = 8600
            //   33c0                 | xor                 eax, eax
            //   33d2                 | xor                 edx, edx
            //   89442418             | mov                 dword ptr [esp + 0x18], eax
            //   3bfd                 | cmp                 edi, ebp
            //   7359                 | jae                 0x5b

        $sequence_7 = { c1e204 3c30 7c09 3c39 7f05 83c2d0 eb18 }
            // n = 7, score = 8600
            //   c1e204               | shl                 edx, 4
            //   3c30                 | cmp                 al, 0x30
            //   7c09                 | jl                  0xb
            //   3c39                 | cmp                 al, 0x39
            //   7f05                 | jg                  7
            //   83c2d0               | add                 edx, -0x30
            //   eb18                 | jmp                 0x1a

        $sequence_8 = { 5f 0f95c0 eb0d 8d8db0fdffff e8???????? }
            // n = 5, score = 8600
            //   5f                   | pop                 edi
            //   0f95c0               | setne               al
            //   eb0d                 | jmp                 0xf
            //   8d8db0fdffff         | lea                 ecx, [ebp - 0x250]
            //   e8????????           |                     

        $sequence_9 = { e8???????? 85c0 7402 8818 e8???????? 8bf0 }
            // n = 6, score = 8600
            //   e8????????           |                     
            //   85c0                 | test                eax, eax
            //   7402                 | je                  4
            //   8818                 | mov                 byte ptr [eax], bl
            //   e8????????           |                     
            //   8bf0                 | mov                 esi, eax

    condition:
        7 of them and filesize < 417792
}