rule win_prestige_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2023-01-25"
        version = "1"
        description = "Detects win.prestige."
        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.prestige"
        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 = { e8???????? 83c404 8b4df4 c7461000000000 c746140f000000 c60600 5f }
            // n = 7, score = 100
            //   e8????????           |                     
            //   83c404               | add                 esp, 4
            //   8b4df4               | mov                 ecx, dword ptr [ebp - 0xc]
            //   c7461000000000       | mov                 dword ptr [esi + 0x10], 0
            //   c746140f000000       | mov                 dword ptr [esi + 0x14], 0xf
            //   c60600               | mov                 byte ptr [esi], 0
            //   5f                   | pop                 edi

        $sequence_1 = { 83cb04 eb8d 8b45e8 8b4de0 83c0ff 8945e8 }
            // n = 6, score = 100
            //   83cb04               | or                  ebx, 4
            //   eb8d                 | jmp                 0xffffff8f
            //   8b45e8               | mov                 eax, dword ptr [ebp - 0x18]
            //   8b4de0               | mov                 ecx, dword ptr [ebp - 0x20]
            //   83c0ff               | add                 eax, -1
            //   8945e8               | mov                 dword ptr [ebp - 0x18], eax

        $sequence_2 = { 894530 895d58 8bc8 837d38ff 8b35???????? 8b3d???????? 0f858c000000 }
            // n = 7, score = 100
            //   894530               | mov                 dword ptr [ebp + 0x30], eax
            //   895d58               | mov                 dword ptr [ebp + 0x58], ebx
            //   8bc8                 | mov                 ecx, eax
            //   837d38ff             | cmp                 dword ptr [ebp + 0x38], -1
            //   8b35????????         |                     
            //   8b3d????????         |                     
            //   0f858c000000         | jne                 0x92

        $sequence_3 = { 0f433d???????? 0f93c1 033d???????? 84c9 0f4535???????? 84ed 897518 }
            // n = 7, score = 100
            //   0f433d????????       |                     
            //   0f93c1               | setae               cl
            //   033d????????         |                     
            //   84c9                 | test                cl, cl
            //   0f4535????????       |                     
            //   84ed                 | test                ch, ch
            //   897518               | mov                 dword ptr [ebp + 0x18], esi

        $sequence_4 = { 895df4 eb0d c745e890334700 8d45e8 895dec 50 8d4df8 }
            // n = 7, score = 100
            //   895df4               | mov                 dword ptr [ebp - 0xc], ebx
            //   eb0d                 | jmp                 0xf
            //   c745e890334700       | mov                 dword ptr [ebp - 0x18], 0x473390
            //   8d45e8               | lea                 eax, [ebp - 0x18]
            //   895dec               | mov                 dword ptr [ebp - 0x14], ebx
            //   50                   | push                eax
            //   8d4df8               | lea                 ecx, [ebp - 8]

        $sequence_5 = { 84c0 0f852b010000 ff75e0 885d13 56 e8???????? 8b4de8 }
            // n = 7, score = 100
            //   84c0                 | test                al, al
            //   0f852b010000         | jne                 0x131
            //   ff75e0               | push                dword ptr [ebp - 0x20]
            //   885d13               | mov                 byte ptr [ebp + 0x13], bl
            //   56                   | push                esi
            //   e8????????           |                     
            //   8b4de8               | mov                 ecx, dword ptr [ebp - 0x18]

        $sequence_6 = { 8bc6 5d 5b 5f 5e c20800 b816000000 }
            // n = 7, score = 100
            //   8bc6                 | mov                 eax, esi
            //   5d                   | pop                 ebp
            //   5b                   | pop                 ebx
            //   5f                   | pop                 edi
            //   5e                   | pop                 esi
            //   c20800               | ret                 8
            //   b816000000           | mov                 eax, 0x16

        $sequence_7 = { 8bfe f3aa 56 e8???????? 8b442424 83c404 8903 }
            // n = 7, score = 100
            //   8bfe                 | mov                 edi, esi
            //   f3aa                 | rep stosb           byte ptr es:[edi], al
            //   56                   | push                esi
            //   e8????????           |                     
            //   8b442424             | mov                 eax, dword ptr [esp + 0x24]
            //   83c404               | add                 esp, 4
            //   8903                 | mov                 dword ptr [ebx], eax

        $sequence_8 = { 742b 8b5dd4 8bc7 2bc6 3bc3 0f8c6cfbffff 85d2 }
            // n = 7, score = 100
            //   742b                 | je                  0x2d
            //   8b5dd4               | mov                 ebx, dword ptr [ebp - 0x2c]
            //   8bc7                 | mov                 eax, edi
            //   2bc6                 | sub                 eax, esi
            //   3bc3                 | cmp                 eax, ebx
            //   0f8c6cfbffff         | jl                  0xfffffb72
            //   85d2                 | test                edx, edx

        $sequence_9 = { 33c0 eb0e 0f57c0 660f134594 8b4598 8b5594 8b4de4 }
            // n = 7, score = 100
            //   33c0                 | xor                 eax, eax
            //   eb0e                 | jmp                 0x10
            //   0f57c0               | xorps               xmm0, xmm0
            //   660f134594           | movlpd              qword ptr [ebp - 0x6c], xmm0
            //   8b4598               | mov                 eax, dword ptr [ebp - 0x68]
            //   8b5594               | mov                 edx, dword ptr [ebp - 0x6c]
            //   8b4de4               | mov                 ecx, dword ptr [ebp - 0x1c]

    condition:
        7 of them and filesize < 1518592
}