rule win_uacme_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-09-17"
        version = "1"
        description = "Detects win.uacme."
        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.uacme"
        malpedia_rule_date = "20260916"
        malpedia_hash = "53a643781c18e08f4a50949af60172d837a0b6f6"
        malpedia_version = "20260917"
        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 = { 8d45e8 50 ff75fc ff15???????? 8b4df8 33d2 85c0 }
            // n = 7, score = 100
            //   8d45e8               | lea                 eax, [ebp - 0x18]
            //   50                   | push                eax
            //   ff75fc               | push                dword ptr [ebp - 4]
            //   ff15????????         |                     
            //   8b4df8               | mov                 ecx, dword ptr [ebp - 8]
            //   33d2                 | xor                 edx, edx
            //   85c0                 | test                eax, eax

        $sequence_1 = { 6a08 ff7018 ff15???????? 8bf0 85f6 0f84de000000 }
            // n = 6, score = 100
            //   6a08                 | push                8
            //   ff7018               | push                dword ptr [eax + 0x18]
            //   ff15????????         |                     
            //   8bf0                 | mov                 esi, eax
            //   85f6                 | test                esi, esi
            //   0f84de000000         | je                  0xe4

        $sequence_2 = { 8d95f0fdffff e8???????? ff771c ff15???????? }
            // n = 4, score = 100
            //   8d95f0fdffff         | lea                 edx, [ebp - 0x210]
            //   e8????????           |                     
            //   ff771c               | push                dword ptr [edi + 0x1c]
            //   ff15????????         |                     

        $sequence_3 = { 59 59 85f6 743f ba???????? }
            // n = 5, score = 100
            //   59                   | pop                 ecx
            //   59                   | pop                 ecx
            //   85f6                 | test                esi, esi
            //   743f                 | je                  0x41
            //   ba????????           |                     

        $sequence_4 = { ff9620060000 33c0 5e 8be5 5d c20400 55 }
            // n = 7, score = 100
            //   ff9620060000         | call                dword ptr [esi + 0x620]
            //   33c0                 | xor                 eax, eax
            //   5e                   | pop                 esi
            //   8be5                 | mov                 esp, ebp
            //   5d                   | pop                 ebp
            //   c20400               | ret                 4
            //   55                   | push                ebp

        $sequence_5 = { c745f425544d50 c745f8255c7233 58 8b3f }
            // n = 4, score = 100
            //   c745f425544d50       | mov                 dword ptr [ebp - 0xc], 0x504d5425
            //   c745f8255c7233       | mov                 dword ptr [ebp - 8], 0x33725c25
            //   58                   | pop                 eax
            //   8b3f                 | mov                 edi, dword ptr [edi]

        $sequence_6 = { c3 55 8bec 81ec20040000 53 56 be0a020000 }
            // n = 7, score = 100
            //   c3                   | ret                 
            //   55                   | push                ebp
            //   8bec                 | mov                 ebp, esp
            //   81ec20040000         | sub                 esp, 0x420
            //   53                   | push                ebx
            //   56                   | push                esi
            //   be0a020000           | mov                 esi, 0x20a

        $sequence_7 = { ba???????? 8d8decfbffff e8???????? ba???????? e8???????? 8d85ecfbffff 50 }
            // n = 7, score = 100
            //   ba????????           |                     
            //   8d8decfbffff         | lea                 ecx, [ebp - 0x414]
            //   e8????????           |                     
            //   ba????????           |                     
            //   e8????????           |                     
            //   8d85ecfbffff         | lea                 eax, [ebp - 0x414]
            //   50                   | push                eax

        $sequence_8 = { e8???????? ba???????? 8d8df0fbffff e8???????? 8d85f0fbffff 50 ff15???????? }
            // n = 7, score = 100
            //   e8????????           |                     
            //   ba????????           |                     
            //   8d8df0fbffff         | lea                 ecx, [ebp - 0x410]
            //   e8????????           |                     
            //   8d85f0fbffff         | lea                 eax, [ebp - 0x410]
            //   50                   | push                eax
            //   ff15????????         |                     

        $sequence_9 = { ff7508 8bd3 8d8de0f7ffff e8???????? 59 85c0 741a }
            // n = 7, score = 100
            //   ff7508               | push                dword ptr [ebp + 8]
            //   8bd3                 | mov                 edx, ebx
            //   8d8de0f7ffff         | lea                 ecx, [ebp - 0x820]
            //   e8????????           |                     
            //   59                   | pop                 ecx
            //   85c0                 | test                eax, eax
            //   741a                 | je                  0x1c

    condition:
        7 of them and filesize < 565248
}