rule win_simplefilemover_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2023-03-28"
        version = "1"
        description = "Detects win.simplefilemover."
        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.simplefilemover"
        malpedia_rule_date = "20230328"
        malpedia_hash = "9d2d75cef573c1c2d861f5197df8f563b05a305d"
        malpedia_version = "20230407"
        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 = { f3a5 e8???????? 81c420020000 85c0 }
            // n = 4, score = 500
            //   f3a5                 | rep movsd           dword ptr es:[edi], dword ptr [esi]
            //   e8????????           |                     
            //   81c420020000         | add                 esp, 0x220
            //   85c0                 | test                eax, eax

        $sequence_1 = { 7d07 33c0 e9???????? 6820020000 ff15???????? }
            // n = 5, score = 400
            //   7d07                 | jge                 9
            //   33c0                 | xor                 eax, eax
            //   e9????????           |                     
            //   6820020000           | push                0x220
            //   ff15????????         |                     

        $sequence_2 = { 81c420020000 85c0 7407 68???????? }
            // n = 4, score = 300
            //   81c420020000         | add                 esp, 0x220
            //   85c0                 | test                eax, eax
            //   7407                 | je                  9
            //   68????????           |                     

        $sequence_3 = { 8bf3 8bfc f3a5 e8???????? }
            // n = 4, score = 300
            //   8bf3                 | mov                 esi, ebx
            //   8bfc                 | mov                 edi, esp
            //   f3a5                 | rep movsd           dword ptr es:[edi], dword ptr [esi]
            //   e8????????           |                     

        $sequence_4 = { e9???????? 6a00 6a04 8d9554daffff 52 8b8554faffff 50 }
            // n = 7, score = 200
            //   e9????????           |                     
            //   6a00                 | push                0
            //   6a04                 | push                4
            //   8d9554daffff         | lea                 edx, [ebp - 0x25ac]
            //   52                   | push                edx
            //   8b8554faffff         | mov                 eax, dword ptr [ebp - 0x5ac]
            //   50                   | push                eax

        $sequence_5 = { 885c242c 8a5c241c 8b74242c 885c2414 }
            // n = 4, score = 200
            //   885c242c             | mov                 byte ptr [esp + 0x2c], bl
            //   8a5c241c             | mov                 bl, byte ptr [esp + 0x1c]
            //   8b74242c             | mov                 esi, dword ptr [esp + 0x2c]
            //   885c2414             | mov                 byte ptr [esp + 0x14], bl

        $sequence_6 = { 33ff 884c2408 3bf7 88542424 897c2410 0f8eda000000 }
            // n = 6, score = 200
            //   33ff                 | xor                 edi, edi
            //   884c2408             | mov                 byte ptr [esp + 8], cl
            //   3bf7                 | cmp                 esi, edi
            //   88542424             | mov                 byte ptr [esp + 0x24], dl
            //   897c2410             | mov                 dword ptr [esp + 0x10], edi
            //   0f8eda000000         | jle                 0xe0

        $sequence_7 = { 8b8508daffff eb16 ebca ebc8 }
            // n = 4, score = 200
            //   8b8508daffff         | mov                 eax, dword ptr [ebp - 0x25f8]
            //   eb16                 | jmp                 0x18
            //   ebca                 | jmp                 0xffffffcc
            //   ebc8                 | jmp                 0xffffffca

        $sequence_8 = { 2b85fcd9ffff 50 8b8d04daffff 51 }
            // n = 4, score = 200
            //   2b85fcd9ffff         | sub                 eax, dword ptr [ebp - 0x2604]
            //   50                   | push                eax
            //   8b8d04daffff         | mov                 ecx, dword ptr [ebp - 0x25fc]
            //   51                   | push                ecx

        $sequence_9 = { 51 50 ff75f0 ff15???????? 8b45e8 }
            // n = 5, score = 200
            //   51                   | push                ecx
            //   50                   | push                eax
            //   ff75f0               | push                dword ptr [ebp - 0x10]
            //   ff15????????         |                     
            //   8b45e8               | mov                 eax, dword ptr [ebp - 0x18]

        $sequence_10 = { ff15???????? 898504daffff 83bd04daffffff 750f c78508daffff00000000 e9???????? }
            // n = 6, score = 200
            //   ff15????????         |                     
            //   898504daffff         | mov                 dword ptr [ebp - 0x25fc], eax
            //   83bd04daffffff       | cmp                 dword ptr [ebp - 0x25fc], -1
            //   750f                 | jne                 0x11
            //   c78508daffff00000000     | mov    dword ptr [ebp - 0x25f8], 0
            //   e9????????           |                     

        $sequence_11 = { 7507 33c0 e9???????? 807d0867 0f848f020000 }
            // n = 5, score = 200
            //   7507                 | jne                 9
            //   33c0                 | xor                 eax, eax
            //   e9????????           |                     
            //   807d0867             | cmp                 byte ptr [ebp + 8], 0x67
            //   0f848f020000         | je                  0x295

        $sequence_12 = { 897c2410 0f8eda000000 8b4c2408 8b742424 }
            // n = 4, score = 200
            //   897c2410             | mov                 dword ptr [esp + 0x10], edi
            //   0f8eda000000         | jle                 0xe0
            //   8b4c2408             | mov                 ecx, dword ptr [esp + 8]
            //   8b742424             | mov                 esi, dword ptr [esp + 0x24]

        $sequence_13 = { ebbe ebbc ebba ebb8 ebb6 }
            // n = 5, score = 200
            //   ebbe                 | jmp                 0xffffffc0
            //   ebbc                 | jmp                 0xffffffbe
            //   ebba                 | jmp                 0xffffffbc
            //   ebb8                 | jmp                 0xffffffba
            //   ebb6                 | jmp                 0xffffffb8

        $sequence_14 = { 68???????? ff15???????? 59 33ff ff75fc ff15???????? }
            // n = 6, score = 200
            //   68????????           |                     
            //   ff15????????         |                     
            //   59                   | pop                 ecx
            //   33ff                 | xor                 edi, edi
            //   ff75fc               | push                dword ptr [ebp - 4]
            //   ff15????????         |                     

        $sequence_15 = { 8bcb 663d5c00 7503 8bfa 46 668b4102 }
            // n = 6, score = 200
            //   8bcb                 | mov                 ecx, ebx
            //   663d5c00             | cmp                 ax, 0x5c
            //   7503                 | jne                 5
            //   8bfa                 | mov                 edi, edx
            //   46                   | inc                 esi
            //   668b4102             | mov                 ax, word ptr [ecx + 2]

        $sequence_16 = { ff15???????? 83c418 8945f4 8d850cdaffff 50 }
            // n = 5, score = 200
            //   ff15????????         |                     
            //   83c418               | add                 esp, 0x18
            //   8945f4               | mov                 dword ptr [ebp - 0xc], eax
            //   8d850cdaffff         | lea                 eax, [ebp - 0x25f4]
            //   50                   | push                eax

        $sequence_17 = { 8a4c242c 5d 5b 5f 889000010000 }
            // n = 5, score = 200
            //   8a4c242c             | mov                 cl, byte ptr [esp + 0x2c]
            //   5d                   | pop                 ebp
            //   5b                   | pop                 ebx
            //   5f                   | pop                 edi
            //   889000010000         | mov                 byte ptr [eax + 0x100], dl

        $sequence_18 = { 8b9540daffff d1e2 52 8d855cfaffff 50 8d8d60daffff 51 }
            // n = 7, score = 200
            //   8b9540daffff         | mov                 edx, dword ptr [ebp - 0x25c0]
            //   d1e2                 | shl                 edx, 1
            //   52                   | push                edx
            //   8d855cfaffff         | lea                 eax, [ebp - 0x5a4]
            //   50                   | push                eax
            //   8d8d60daffff         | lea                 ecx, [ebp - 0x25a0]
            //   51                   | push                ecx

        $sequence_19 = { 56 8b74241c 57 8a8800010000 8a9001010000 }
            // n = 5, score = 200
            //   56                   | push                esi
            //   8b74241c             | mov                 esi, dword ptr [esp + 0x1c]
            //   57                   | push                edi
            //   8a8800010000         | mov                 cl, byte ptr [eax + 0x100]
            //   8a9001010000         | mov                 dl, byte ptr [eax + 0x101]

        $sequence_20 = { 83c102 42 6685c0 75ea }
            // n = 4, score = 200
            //   83c102               | add                 ecx, 2
            //   42                   | inc                 edx
            //   6685c0               | test                ax, ax
            //   75ea                 | jne                 0xffffffec

        $sequence_21 = { 7908 4b 81cb00ffffff 43 8b6c2424 81e3ff000000 8a1c03 }
            // n = 7, score = 200
            //   7908                 | jns                 0xa
            //   4b                   | dec                 ebx
            //   81cb00ffffff         | or                  ebx, 0xffffff00
            //   43                   | inc                 ebx
            //   8b6c2424             | mov                 ebp, dword ptr [esp + 0x24]
            //   81e3ff000000         | and                 ebx, 0xff
            //   8a1c03               | mov                 bl, byte ptr [ebx + eax]

    condition:
        7 of them and filesize < 57344
}