rule win_pandabanker_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2022-04-08"
        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 = "20220405"
        malpedia_hash = "ecd38294bd47d5589be5cd5490dc8bb4804afc2a"
        malpedia_version = "20220411"
        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 = { 6a10 59 f3a4 5f 5e }
            // n = 5, score = 8600
            //   6a10                 | push                0x10
            //   59                   | pop                 ecx
            //   f3a4                 | rep movsb           byte ptr es:[edi], byte ptr [esi]
            //   5f                   | pop                 edi
            //   5e                   | pop                 esi

        $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 = { 7414 8d55f4 8bcf e8???????? 8d4df4 8bf0 }
            // n = 6, score = 8600
            //   7414                 | je                  0x16
            //   8d55f4               | lea                 edx, dword ptr [ebp - 0xc]
            //   8bcf                 | mov                 ecx, edi
            //   e8????????           |                     
            //   8d4df4               | lea                 ecx, dword ptr [ebp - 0xc]
            //   8bf0                 | mov                 esi, eax

        $sequence_3 = { 8d44240c 8b4c2404 50 e8???????? c3 53 }
            // n = 6, score = 8600
            //   8d44240c             | lea                 eax, dword ptr [esp + 0xc]
            //   8b4c2404             | mov                 ecx, dword ptr [esp + 4]
            //   50                   | push                eax
            //   e8????????           |                     
            //   c3                   | ret                 
            //   53                   | push                ebx

        $sequence_4 = { 56 57 8bfa 33f6 8d55f4 }
            // n = 5, score = 8600
            //   56                   | push                esi
            //   57                   | push                edi
            //   8bfa                 | mov                 edi, edx
            //   33f6                 | xor                 esi, esi
            //   8d55f4               | lea                 edx, dword ptr [ebp - 0xc]

        $sequence_5 = { 2375fc e8???????? 5f 8bc6 5e 8be5 5d }
            // n = 7, score = 8600
            //   2375fc               | and                 esi, dword ptr [ebp - 4]
            //   e8????????           |                     
            //   5f                   | pop                 edi
            //   8bc6                 | mov                 eax, esi
            //   5e                   | pop                 esi
            //   8be5                 | mov                 esp, ebp
            //   5d                   | pop                 ebp

        $sequence_6 = { 57 ff36 53 6a01 53 }
            // n = 5, score = 8600
            //   57                   | push                edi
            //   ff36                 | push                dword ptr [esi]
            //   53                   | push                ebx
            //   6a01                 | push                1
            //   53                   | push                ebx

        $sequence_7 = { 8bce e8???????? 33f6 8bc6 5e 5d 5b }
            // n = 7, score = 8600
            //   8bce                 | mov                 ecx, esi
            //   e8????????           |                     
            //   33f6                 | xor                 esi, esi
            //   8bc6                 | mov                 eax, esi
            //   5e                   | pop                 esi
            //   5d                   | pop                 ebp
            //   5b                   | pop                 ebx

        $sequence_8 = { 83ec0c 53 55 8be9 8954240c }
            // n = 5, score = 8600
            //   83ec0c               | sub                 esp, 0xc
            //   53                   | push                ebx
            //   55                   | push                ebp
            //   8be9                 | mov                 ebp, ecx
            //   8954240c             | mov                 dword ptr [esp + 0xc], edx

        $sequence_9 = { 75f9 2bce 5e 8d040a c3 33c0 c3 }
            // n = 7, score = 8600
            //   75f9                 | jne                 0xfffffffb
            //   2bce                 | sub                 ecx, esi
            //   5e                   | pop                 esi
            //   8d040a               | lea                 eax, dword ptr [edx + ecx]
            //   c3                   | ret                 
            //   33c0                 | xor                 eax, eax
            //   c3                   | ret                 

    condition:
        7 of them and filesize < 417792
}