rule win_qadars_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2023-07-11"
        version = "1"
        description = "Detects win.qadars."
        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.qadars"
        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 = { 57 56 8b7df0 48 8b75e4 b940000000 8bc1 }
            // n = 7, score = 700
            //   57                   | push                edi
            //   56                   | push                esi
            //   8b7df0               | mov                 edi, dword ptr [ebp - 0x10]
            //   48                   | dec                 eax
            //   8b75e4               | mov                 esi, dword ptr [ebp - 0x1c]
            //   b940000000           | mov                 ecx, 0x40
            //   8bc1                 | mov                 eax, ecx

        $sequence_1 = { 57 56 6802000080 e8???????? 83c434 8945ec 895df0 }
            // n = 7, score = 700
            //   57                   | push                edi
            //   56                   | push                esi
            //   6802000080           | push                0x80000002
            //   e8????????           |                     
            //   83c434               | add                 esp, 0x34
            //   8945ec               | mov                 dword ptr [ebp - 0x14], eax
            //   895df0               | mov                 dword ptr [ebp - 0x10], ebx

        $sequence_2 = { 57 57 57 8d4de8 51 57 57 }
            // n = 7, score = 700
            //   57                   | push                edi
            //   57                   | push                edi
            //   57                   | push                edi
            //   8d4de8               | lea                 ecx, [ebp - 0x18]
            //   51                   | push                ecx
            //   57                   | push                edi
            //   57                   | push                edi

        $sequence_3 = { 57 56 e8???????? 837e0c00 8bf8 7409 ff4e0c }
            // n = 7, score = 700
            //   57                   | push                edi
            //   56                   | push                esi
            //   e8????????           |                     
            //   837e0c00             | cmp                 dword ptr [esi + 0xc], 0
            //   8bf8                 | mov                 edi, eax
            //   7409                 | je                  0xb
            //   ff4e0c               | dec                 dword ptr [esi + 0xc]

        $sequence_4 = { 57 56 8b7dd8 48 8b75a4 b916000000 8bc1 }
            // n = 7, score = 700
            //   57                   | push                edi
            //   56                   | push                esi
            //   8b7dd8               | mov                 edi, dword ptr [ebp - 0x28]
            //   48                   | dec                 eax
            //   8b75a4               | mov                 esi, dword ptr [ebp - 0x5c]
            //   b916000000           | mov                 ecx, 0x16
            //   8bc1                 | mov                 eax, ecx

        $sequence_5 = { 57 57 57 8d45f8 50 57 57 }
            // n = 7, score = 700
            //   57                   | push                edi
            //   57                   | push                edi
            //   57                   | push                edi
            //   8d45f8               | lea                 eax, [ebp - 8]
            //   50                   | push                eax
            //   57                   | push                edi
            //   57                   | push                edi

        $sequence_6 = { 57 57 895dfc 897df8 e8???????? }
            // n = 5, score = 700
            //   57                   | push                edi
            //   57                   | push                edi
            //   895dfc               | mov                 dword ptr [ebp - 4], ebx
            //   897df8               | mov                 dword ptr [ebp - 8], edi
            //   e8????????           |                     

        $sequence_7 = { 57 56 e8???????? 83c404 52 50 e8???????? }
            // n = 7, score = 700
            //   57                   | push                edi
            //   56                   | push                esi
            //   e8????????           |                     
            //   83c404               | add                 esp, 4
            //   52                   | push                edx
            //   50                   | push                eax
            //   e8????????           |                     

        $sequence_8 = { 6a00 8d4df4 51 6a04 8d55f8 52 }
            // n = 6, score = 600
            //   6a00                 | push                0
            //   8d4df4               | lea                 ecx, [ebp - 0xc]
            //   51                   | push                ecx
            //   6a04                 | push                4
            //   8d55f8               | lea                 edx, [ebp - 8]
            //   52                   | push                edx

        $sequence_9 = { 6a01 8b55fc 52 ff15???????? 83c408 }
            // n = 5, score = 300
            //   6a01                 | push                1
            //   8b55fc               | mov                 edx, dword ptr [ebp - 4]
            //   52                   | push                edx
            //   ff15????????         |                     
            //   83c408               | add                 esp, 8

        $sequence_10 = { 83c40c 6805010000 8d8df8feffff 51 }
            // n = 4, score = 300
            //   83c40c               | add                 esp, 0xc
            //   6805010000           | push                0x105
            //   8d8df8feffff         | lea                 ecx, [ebp - 0x108]
            //   51                   | push                ecx

        $sequence_11 = { 6a01 6a08 ff15???????? 83c408 }
            // n = 4, score = 300
            //   6a01                 | push                1
            //   6a08                 | push                8
            //   ff15????????         |                     
            //   83c408               | add                 esp, 8

        $sequence_12 = { 51 8b55f0 52 ff15???????? 83c40c }
            // n = 5, score = 300
            //   51                   | push                ecx
            //   8b55f0               | mov                 edx, dword ptr [ebp - 0x10]
            //   52                   | push                edx
            //   ff15????????         |                     
            //   83c40c               | add                 esp, 0xc

        $sequence_13 = { 83c408 68???????? 6a01 e8???????? 83c408 8b4dfc }
            // n = 6, score = 100
            //   83c408               | add                 esp, 8
            //   68????????           |                     
            //   6a01                 | push                1
            //   e8????????           |                     
            //   83c408               | add                 esp, 8
            //   8b4dfc               | mov                 ecx, dword ptr [ebp - 4]

        $sequence_14 = { 83c408 6804010000 6a00 8b55fc 81c280180000 }
            // n = 5, score = 100
            //   83c408               | add                 esp, 8
            //   6804010000           | push                0x104
            //   6a00                 | push                0
            //   8b55fc               | mov                 edx, dword ptr [ebp - 4]
            //   81c280180000         | add                 edx, 0x1880

        $sequence_15 = { 83c408 6808020000 6a00 8d8de8fbffff }
            // n = 4, score = 100
            //   83c408               | add                 esp, 8
            //   6808020000           | push                0x208
            //   6a00                 | push                0
            //   8d8de8fbffff         | lea                 ecx, [ebp - 0x418]

    condition:
        7 of them and filesize < 630784
}