rule win_innaput_rat_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2023-03-28"
        version = "1"
        description = "Detects win.innaput_rat."
        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.innaput_rat"
        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 = { 894710 ff7604 035e08 ff5708 56 ff5708 59 }
            // n = 7, score = 500
            //   894710               | mov                 dword ptr [edi + 0x10], eax
            //   ff7604               | push                dword ptr [esi + 4]
            //   035e08               | add                 ebx, dword ptr [esi + 8]
            //   ff5708               | call                dword ptr [edi + 8]
            //   56                   | push                esi
            //   ff5708               | call                dword ptr [edi + 8]
            //   59                   | pop                 ecx

        $sequence_1 = { 391e 75fa 6a0c ff5704 }
            // n = 4, score = 500
            //   391e                 | cmp                 dword ptr [esi], ebx
            //   75fa                 | jne                 0xfffffffc
            //   6a0c                 | push                0xc
            //   ff5704               | call                dword ptr [edi + 4]

        $sequence_2 = { 8d7710 eb02 8b36 391e 75fa 6a0c }
            // n = 6, score = 500
            //   8d7710               | lea                 esi, [edi + 0x10]
            //   eb02                 | jmp                 4
            //   8b36                 | mov                 esi, dword ptr [esi]
            //   391e                 | cmp                 dword ptr [esi], ebx
            //   75fa                 | jne                 0xfffffffc
            //   6a0c                 | push                0xc

        $sequence_3 = { 7514 33db 53 53 }
            // n = 4, score = 500
            //   7514                 | jne                 0x16
            //   33db                 | xor                 ebx, ebx
            //   53                   | push                ebx
            //   53                   | push                ebx

        $sequence_4 = { 7412 53 ff7604 ff15???????? 85c0 }
            // n = 5, score = 500
            //   7412                 | je                  0x14
            //   53                   | push                ebx
            //   ff7604               | push                dword ptr [esi + 4]
            //   ff15????????         |                     
            //   85c0                 | test                eax, eax

        $sequence_5 = { ff15???????? ffb718060000 ff15???????? 85c0 750c }
            // n = 5, score = 500
            //   ff15????????         |                     
            //   ffb718060000         | push                dword ptr [edi + 0x618]
            //   ff15????????         |                     
            //   85c0                 | test                eax, eax
            //   750c                 | jne                 0xe

        $sequence_6 = { 53 6a06 6a01 6a02 ff15???????? 89460c 83f8ff }
            // n = 7, score = 500
            //   53                   | push                ebx
            //   6a06                 | push                6
            //   6a01                 | push                1
            //   6a02                 | push                2
            //   ff15????????         |                     
            //   89460c               | mov                 dword ptr [esi + 0xc], eax
            //   83f8ff               | cmp                 eax, -1

        $sequence_7 = { ff15???????? 85c0 7413 3bc6 740f 8b4d08 }
            // n = 6, score = 500
            //   ff15????????         |                     
            //   85c0                 | test                eax, eax
            //   7413                 | je                  0x15
            //   3bc6                 | cmp                 eax, esi
            //   740f                 | je                  0x11
            //   8b4d08               | mov                 ecx, dword ptr [ebp + 8]

        $sequence_8 = { 8945fc ff15???????? 8d7710 eb02 8b36 391e }
            // n = 6, score = 500
            //   8945fc               | mov                 dword ptr [ebp - 4], eax
            //   ff15????????         |                     
            //   8d7710               | lea                 esi, [edi + 0x10]
            //   eb02                 | jmp                 4
            //   8b36                 | mov                 esi, dword ptr [esi]
            //   391e                 | cmp                 dword ptr [esi], ebx

        $sequence_9 = { 8bc8 2bf1 8a08 884c0616 40 }
            // n = 5, score = 500
            //   8bc8                 | mov                 ecx, eax
            //   2bf1                 | sub                 esi, ecx
            //   8a08                 | mov                 cl, byte ptr [eax]
            //   884c0616             | mov                 byte ptr [esi + eax + 0x16], cl
            //   40                   | inc                 eax

    condition:
        7 of them and filesize < 73728
}