rule win_sysget_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2023-07-11"
        version = "1"
        description = "Detects win.sysget."
        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.sysget"
        malpedia_rule_date = "20230705"
        malpedia_hash = "42d0574f4405bd7d2b154d321d345acb18834a41"
        malpedia_version = "20230715"
        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 = { 6800100000 50 57 8906 }
            // n = 4, score = 400
            //   6800100000           | push                0x1000
            //   50                   | push                eax
            //   57                   | push                edi
            //   8906                 | mov                 dword ptr [esi], eax

        $sequence_1 = { c705????????01000000 33c0 68fe070000 50 }
            // n = 4, score = 400
            //   c705????????01000000     |     
            //   33c0                 | xor                 eax, eax
            //   68fe070000           | push                0x7fe
            //   50                   | push                eax

        $sequence_2 = { 53 50 885dcc e8???????? b9???????? 8bc1 83c40c }
            // n = 7, score = 400
            //   53                   | push                ebx
            //   50                   | push                eax
            //   885dcc               | mov                 byte ptr [ebp - 0x34], bl
            //   e8????????           |                     
            //   b9????????           |                     
            //   8bc1                 | mov                 eax, ecx
            //   83c40c               | add                 esp, 0xc

        $sequence_3 = { 889dd4fdffff e8???????? 68f9000000 8d8501ffffff 53 50 }
            // n = 6, score = 400
            //   889dd4fdffff         | mov                 byte ptr [ebp - 0x22c], bl
            //   e8????????           |                     
            //   68f9000000           | push                0xf9
            //   8d8501ffffff         | lea                 eax, [ebp - 0xff]
            //   53                   | push                ebx
            //   50                   | push                eax

        $sequence_4 = { 83c702 6685c0 75f4 4b 53 8d85e4fbffff }
            // n = 6, score = 400
            //   83c702               | add                 edi, 2
            //   6685c0               | test                ax, ax
            //   75f4                 | jne                 0xfffffff6
            //   4b                   | dec                 ebx
            //   53                   | push                ebx
            //   8d85e4fbffff         | lea                 eax, [ebp - 0x41c]

        $sequence_5 = { 56 57 6a00 8bd8 ff15???????? 56 }
            // n = 6, score = 400
            //   56                   | push                esi
            //   57                   | push                edi
            //   6a00                 | push                0
            //   8bd8                 | mov                 ebx, eax
            //   ff15????????         |                     
            //   56                   | push                esi

        $sequence_6 = { 8d85ecf1ffff 50 e8???????? 834dfcff 83c40c b8???????? }
            // n = 6, score = 400
            //   8d85ecf1ffff         | lea                 eax, [ebp - 0xe14]
            //   50                   | push                eax
            //   e8????????           |                     
            //   834dfcff             | or                  dword ptr [ebp - 4], 0xffffffff
            //   83c40c               | add                 esp, 0xc
            //   b8????????           |                     

        $sequence_7 = { 68fe000000 668985ecfeffff 8d85eefeffff 57 50 e8???????? 8dbdecfeffff }
            // n = 7, score = 400
            //   68fe000000           | push                0xfe
            //   668985ecfeffff       | mov                 word ptr [ebp - 0x114], ax
            //   8d85eefeffff         | lea                 eax, [ebp - 0x112]
            //   57                   | push                edi
            //   50                   | push                eax
            //   e8????????           |                     
            //   8dbdecfeffff         | lea                 edi, [ebp - 0x114]

        $sequence_8 = { 8d45e4 50 895de4 895ddc 895de0 }
            // n = 5, score = 400
            //   8d45e4               | lea                 eax, [ebp - 0x1c]
            //   50                   | push                eax
            //   895de4               | mov                 dword ptr [ebp - 0x1c], ebx
            //   895ddc               | mov                 dword ptr [ebp - 0x24], ebx
            //   895de0               | mov                 dword ptr [ebp - 0x20], ebx

        $sequence_9 = { c1e902 f3a5 8bc8 8d85ecf1ffff 83e103 }
            // n = 5, score = 400
            //   c1e902               | shr                 ecx, 2
            //   f3a5                 | rep movsd           dword ptr es:[edi], dword ptr [esi]
            //   8bc8                 | mov                 ecx, eax
            //   8d85ecf1ffff         | lea                 eax, [ebp - 0xe14]
            //   83e103               | and                 ecx, 3

    condition:
        7 of them and filesize < 352256
}