rule win_matrix_banker_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2023-01-25"
        version = "1"
        description = "Detects win.matrix_banker."
        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.matrix_banker"
        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 = { 80c2a9 eb0b 8d4abf 80f905 7703 }
            // n = 5, score = 900
            //   80c2a9               | mov                 ebp, dword ptr [esp + 0x50]
            //   eb0b                 | dec                 eax
            //   8d4abf               | add                 esp, 0x30
            //   80f905               | dec                 eax
            //   7703                 | mov                 edi, dword ptr [esp + 0x48]

        $sequence_1 = { 80f905 7702 04c9 8d4ad0 80f909 }
            // n = 5, score = 900
            //   80f905               | je                  0x18f0
            //   7702                 | dec                 eax
            //   04c9                 | lea                 eax, [0x14a5c]
            //   8d4ad0               | dec                 eax
            //   80f909               | mov                 eax, dword ptr [eax + edi*8]

        $sequence_2 = { 7705 80c2a9 eb0b 8d4abf 80f905 7703 80c2c9 }
            // n = 7, score = 900
            //   7705                 | test                eax, eax
            //   80c2a9               | jne                 0x187c
            //   eb0b                 | dec                 eax
            //   8d4abf               | lea                 eax, [0x18d8b]
            //   80f905               | jmp                 0x1880
            //   7703                 | dec                 eax
            //   80c2c9               | add                 eax, 0x14

        $sequence_3 = { 7704 04a9 eb0a 8d48bf 80f905 7702 }
            // n = 6, score = 900
            //   7704                 | inc                 ebp
            //   04a9                 | xor                 eax, eax
            //   eb0a                 | xor                 edx, edx
            //   8d48bf               | dec                 eax
            //   80f905               | mov                 ecx, dword ptr [edi + 8]
            //   7702                 | dec                 esp

        $sequence_4 = { eb16 8d489f 80f905 7704 04a9 }
            // n = 5, score = 900
            //   eb16                 | je                  0x264
            //   8d489f               | mov                 ecx, dword ptr [ebp - 0xc]
            //   80f905               | inc                 ecx
            //   7704                 | push                ecx
            //   04a9                 | test                edi, edi

        $sequence_5 = { 8d4a9f 80f905 7705 80c2a9 eb0b }
            // n = 5, score = 900
            //   8d4a9f               | mov                 eax, esi
            //   80f905               | push                0
            //   7705                 | mov                 ecx, dword ptr [ebp - 4]
            //   80c2a9               | mov                 eax, edi
            //   eb0b                 | push                0

        $sequence_6 = { 80f905 7705 80c2a9 eb0b 8d4abf }
            // n = 5, score = 900
            //   80f905               | dec                 eax
            //   7705                 | mov                 eax, dword ptr [esp + 0x70]
            //   80c2a9               | dec                 eax
            //   eb0b                 | mov                 edi, dword ptr [esp + 0x58]
            //   8d4abf               | dec                 eax

        $sequence_7 = { eb0a 8d48bf 80f905 7702 04c9 8d4ad0 }
            // n = 6, score = 900
            //   eb0a                 | test                eax, eax
            //   8d48bf               | je                  0xf8f
            //   80f905               | cmp                 dword ptr [eax], 0x6e756863
            //   7702                 | jne                 0xf8f
            //   04c9                 | or                  dword ptr [edi + 0x18], 2
            //   8d4ad0               | mov                 esi, dword ptr [edi + 0x20]

        $sequence_8 = { 8d489f 80f905 7704 04a9 eb0a 8d48bf }
            // n = 6, score = 900
            //   8d489f               | mov                 word ptr [esi], di
            //   80f905               | mov                 edi, dword ptr [esp + 0xc]
            //   7704                 | inc                 edi
            //   04a9                 | mov                 word ptr [esi - 2], ax
            //   eb0a                 | add                 esi, 8
            //   8d48bf               | mov                 ax, word ptr [edi]

        $sequence_9 = { eb18 8d4a9f 80f905 7705 80c2a9 }
            // n = 5, score = 900
            //   eb18                 | je                  0x310
            //   8d4a9f               | push                esi
            //   80f905               | push                dword ptr [ebp - 0x18]
            //   7705                 | push                edi
            //   80c2a9               | test                edi, edi

    condition:
        7 of them and filesize < 422912
}