rule win_pandabanker_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2023-01-25"
        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 = "20230124"
        malpedia_hash = "2ee0eebba83dce3d019a90519f2f972c0fcf9686"
        malpedia_version = "20230125"
        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 = { 85f6 7e26 8be8 8d831c020000 8bd8 }
            // n = 5, score = 8600
            //   85f6                 | test                esi, esi
            //   7e26                 | jle                 0x28
            //   8be8                 | mov                 ebp, eax
            //   8d831c020000         | lea                 eax, [ebx + 0x21c]
            //   8bd8                 | mov                 ebx, eax

        $sequence_1 = { 57 8bfa 66833e00 7409 }
            // n = 4, score = 8600
            //   57                   | push                edi
            //   8bfa                 | mov                 edi, edx
            //   66833e00             | cmp                 word ptr [esi], 0
            //   7409                 | je                  0xb

        $sequence_2 = { 8d04ab 8b5c2434 8bef 8944241c }
            // n = 4, score = 8600
            //   8d04ab               | lea                 eax, [ebx + ebp*4]
            //   8b5c2434             | mov                 ebx, dword ptr [esp + 0x34]
            //   8bef                 | mov                 ebp, edi
            //   8944241c             | mov                 dword ptr [esp + 0x1c], eax

        $sequence_3 = { 7f32 390f 0f8e96000000 8d5740 }
            // n = 4, score = 8600
            //   7f32                 | jg                  0x34
            //   390f                 | cmp                 dword ptr [edi], ecx
            //   0f8e96000000         | jle                 0x9c
            //   8d5740               | lea                 edx, [edi + 0x40]

        $sequence_4 = { 663b4306 89442418 72bf 5f 5e }
            // n = 5, score = 8600
            //   663b4306             | cmp                 ax, word ptr [ebx + 6]
            //   89442418             | mov                 dword ptr [esp + 0x18], eax
            //   72bf                 | jb                  0xffffffc1
            //   5f                   | pop                 edi
            //   5e                   | pop                 esi

        $sequence_5 = { 8bf0 85f6 7414 e8???????? 8906 85c0 7509 }
            // n = 7, score = 8600
            //   8bf0                 | mov                 esi, eax
            //   85f6                 | test                esi, esi
            //   7414                 | je                  0x16
            //   e8????????           |                     
            //   8906                 | mov                 dword ptr [esi], eax
            //   85c0                 | test                eax, eax
            //   7509                 | jne                 0xb

        $sequence_6 = { 40 89470c 894714 ebc2 8a06 3c22 750b }
            // n = 7, score = 8600
            //   40                   | inc                 eax
            //   89470c               | mov                 dword ptr [edi + 0xc], eax
            //   894714               | mov                 dword ptr [edi + 0x14], eax
            //   ebc2                 | jmp                 0xffffffc4
            //   8a06                 | mov                 al, byte ptr [esi]
            //   3c22                 | cmp                 al, 0x22
            //   750b                 | jne                 0xd

        $sequence_7 = { 8b4910 e8???????? e9???????? 8bd7 }
            // n = 4, score = 8600
            //   8b4910               | mov                 ecx, dword ptr [ecx + 0x10]
            //   e8????????           |                     
            //   e9????????           |                     
            //   8bd7                 | mov                 edx, edi

        $sequence_8 = { 8344241404 3bf3 0f8c2bffffff 33d2 395704 }
            // n = 5, score = 8600
            //   8344241404           | add                 dword ptr [esp + 0x14], 4
            //   3bf3                 | cmp                 esi, ebx
            //   0f8c2bffffff         | jl                  0xffffff31
            //   33d2                 | xor                 edx, edx
            //   395704               | cmp                 dword ptr [edi + 4], edx

        $sequence_9 = { f7da 1bd2 23d5 8bc2 }
            // n = 4, score = 8600
            //   f7da                 | neg                 edx
            //   1bd2                 | sbb                 edx, edx
            //   23d5                 | and                 edx, ebp
            //   8bc2                 | mov                 eax, edx

    condition:
        7 of them and filesize < 417792
}