rule win_qadars_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2023-01-25"
        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 = "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 = { 83e11f 33ff 8945f4 894d08 397e08 0f86c5000000 8d0c8500000000 }
            // n = 7, score = 700
            //   83e11f               | and                 ecx, 0x1f
            //   33ff                 | xor                 edi, edi
            //   8945f4               | mov                 dword ptr [ebp - 0xc], eax
            //   894d08               | mov                 dword ptr [ebp + 8], ecx
            //   397e08               | cmp                 dword ptr [esi + 8], edi
            //   0f86c5000000         | jbe                 0xcb
            //   8d0c8500000000       | lea                 ecx, [eax*4]

        $sequence_1 = { 51 50 e8???????? 83c414 894708 8307ff }
            // n = 6, score = 700
            //   51                   | push                ecx
            //   50                   | push                eax
            //   e8????????           |                     
            //   83c414               | add                 esp, 0x14
            //   894708               | mov                 dword ptr [edi + 8], eax
            //   8307ff               | add                 dword ptr [edi], -1

        $sequence_2 = { 51 50 e8???????? 83c408 33f6 894508 }
            // n = 6, score = 700
            //   51                   | push                ecx
            //   50                   | push                eax
            //   e8????????           |                     
            //   83c408               | add                 esp, 8
            //   33f6                 | xor                 esi, esi
            //   894508               | mov                 dword ptr [ebp + 8], eax

        $sequence_3 = { 33d2 eb05 8b11 8b1482 }
            // n = 4, score = 700
            //   33d2                 | xor                 edx, edx
            //   eb05                 | jmp                 7
            //   8b11                 | mov                 edx, dword ptr [ecx]
            //   8b1482               | mov                 edx, dword ptr [edx + eax*4]

        $sequence_4 = { 5f 885e0f 884e0c 88560d 88460e 5e }
            // n = 6, score = 700
            //   5f                   | pop                 edi
            //   885e0f               | mov                 byte ptr [esi + 0xf], bl
            //   884e0c               | mov                 byte ptr [esi + 0xc], cl
            //   88560d               | mov                 byte ptr [esi + 0xd], dl
            //   88460e               | mov                 byte ptr [esi + 0xe], al
            //   5e                   | pop                 esi

        $sequence_5 = { 83e11f ba01000000 d3e2 85d0 740f }
            // n = 5, score = 700
            //   83e11f               | and                 ecx, 0x1f
            //   ba01000000           | mov                 edx, 1
            //   d3e2                 | shl                 edx, cl
            //   85d0                 | test                eax, edx
            //   740f                 | je                  0x11

        $sequence_6 = { 83e11f 5f 7410 8b06 ba01000000 d3e2 8d4498fc }
            // n = 7, score = 700
            //   83e11f               | and                 ecx, 0x1f
            //   5f                   | pop                 edi
            //   7410                 | je                  0x12
            //   8b06                 | mov                 eax, dword ptr [esi]
            //   ba01000000           | mov                 edx, 1
            //   d3e2                 | shl                 edx, cl
            //   8d4498fc             | lea                 eax, [eax + ebx*4 - 4]

        $sequence_7 = { 33d2 eb05 8b13 8b1482 }
            // n = 4, score = 700
            //   33d2                 | xor                 edx, edx
            //   eb05                 | jmp                 7
            //   8b13                 | mov                 edx, dword ptr [ebx]
            //   8b1482               | mov                 edx, dword ptr [edx + eax*4]

        $sequence_8 = { 6a00 8d4df4 51 6a04 8d55f8 }
            // n = 5, score = 600
            //   6a00                 | push                0
            //   8d4df4               | lea                 ecx, [ebp - 0xc]
            //   51                   | push                ecx
            //   6a04                 | push                4
            //   8d55f8               | lea                 edx, [ebp - 8]

        $sequence_9 = { 6a01 6a08 ff15???????? 83c408 }
            // n = 4, score = 300
            //   6a01                 | push                1
            //   6a08                 | push                8
            //   ff15????????         |                     
            //   83c408               | add                 esp, 8

        $sequence_10 = { 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_11 = { 83c40c 6805010000 8d8df8feffff 51 }
            // n = 4, score = 300
            //   83c40c               | add                 esp, 0xc
            //   6805010000           | push                0x105
            //   8d8df8feffff         | lea                 ecx, [ebp - 0x108]
            //   51                   | push                ecx

        $sequence_12 = { 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_13 = { 83c408 6a04 6a00 8d8dd8ecffff }
            // n = 4, score = 100
            //   83c408               | add                 esp, 8
            //   6a04                 | push                4
            //   6a00                 | push                0
            //   8d8dd8ecffff         | lea                 ecx, [ebp - 0x1328]

        $sequence_14 = { 83c408 6a04 8d4de0 51 }
            // n = 4, score = 100
            //   83c408               | add                 esp, 8
            //   6a04                 | push                4
            //   8d4de0               | lea                 ecx, [ebp - 0x20]
            //   51                   | push                ecx

        $sequence_15 = { 83c408 6a01 8b95407effff 52 }
            // n = 4, score = 100
            //   83c408               | add                 esp, 8
            //   6a01                 | push                1
            //   8b95407effff         | mov                 edx, dword ptr [ebp - 0x81c0]
            //   52                   | push                edx

    condition:
        7 of them and filesize < 630784
}