rule win_amadey_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2020-12-22"
        version = "1"
        description = "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.amadey"
        malpedia_rule_date = "20201222"
        malpedia_hash = "30354d830a29f0fbd3714d93d94dea941d77a130"
        malpedia_version = "20201023"
        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 = { 84c0 7407 c745fc09000000 c70424???????? }
            // n = 4, score = 700
            //   84c0                 | test                al, al
            //   7407                 | je                  9
            //   c745fc09000000       | mov                 dword ptr [ebp - 4], 9
            //   c70424????????       |                     

        $sequence_1 = { e8???????? 890424 e8???????? 84c0 7407 c745fc01000000 c70424???????? }
            // n = 7, score = 700
            //   e8????????           |                     
            //   890424               | mov                 dword ptr [esp], eax
            //   e8????????           |                     
            //   84c0                 | test                al, al
            //   7407                 | je                  9
            //   c745fc01000000       | mov                 dword ptr [ebp - 4], 1
            //   c70424????????       |                     

        $sequence_2 = { e8???????? 84c0 7407 c745fc09000000 c70424???????? e8???????? }
            // n = 6, score = 700
            //   e8????????           |                     
            //   84c0                 | test                al, al
            //   7407                 | je                  9
            //   c745fc09000000       | mov                 dword ptr [ebp - 4], 9
            //   c70424????????       |                     
            //   e8????????           |                     

        $sequence_3 = { 890424 e8???????? e8???????? 0fb6c0 }
            // n = 4, score = 700
            //   890424               | mov                 dword ptr [esp], eax
            //   e8????????           |                     
            //   e8????????           |                     
            //   0fb6c0               | movzx               eax, al

        $sequence_4 = { c1e004 8945f4 8b45f4 e8???????? 8d44240c 83c00f c1e804 }
            // n = 7, score = 700
            //   c1e004               | shl                 eax, 4
            //   8945f4               | mov                 dword ptr [ebp - 0xc], eax
            //   8b45f4               | mov                 eax, dword ptr [ebp - 0xc]
            //   e8????????           |                     
            //   8d44240c             | lea                 eax, [esp + 0xc]
            //   83c00f               | add                 eax, 0xf
            //   c1e804               | shr                 eax, 4

        $sequence_5 = { 750a c705????????0f000000 a1???????? 898514ffffff 8b8514ffffff c9 }
            // n = 6, score = 700
            //   750a                 | jne                 0xc
            //   c705????????0f000000     |     
            //   a1????????           |                     
            //   898514ffffff         | mov                 dword ptr [ebp - 0xec], eax
            //   8b8514ffffff         | mov                 eax, dword ptr [ebp - 0xec]
            //   c9                   | leave               

        $sequence_6 = { 83ec20 c70424???????? e8???????? 8b95ecfbffff 89d0 c1e003 29d0 }
            // n = 7, score = 700
            //   83ec20               | sub                 esp, 0x20
            //   c70424????????       |                     
            //   e8????????           |                     
            //   8b95ecfbffff         | mov                 edx, dword ptr [ebp - 0x414]
            //   89d0                 | mov                 eax, edx
            //   c1e003               | shl                 eax, 3
            //   29d0                 | sub                 eax, edx

        $sequence_7 = { 8d85f8fdffff 890424 e8???????? c744240800020000 c744240400000000 8d85f8fbffff 890424 }
            // n = 7, score = 700
            //   8d85f8fdffff         | lea                 eax, [ebp - 0x208]
            //   890424               | mov                 dword ptr [esp], eax
            //   e8????????           |                     
            //   c744240800020000     | mov                 dword ptr [esp + 8], 0x200
            //   c744240400000000     | mov                 dword ptr [esp + 4], 0
            //   8d85f8fbffff         | lea                 eax, [ebp - 0x408]
            //   890424               | mov                 dword ptr [esp], eax

        $sequence_8 = { 751c 807df201 750c c705????????09000000 eb0a c705????????0a000000 }
            // n = 6, score = 700
            //   751c                 | jne                 0x1e
            //   807df201             | cmp                 byte ptr [ebp - 0xe], 1
            //   750c                 | jne                 0xe
            //   c705????????09000000     |     
            //   eb0a                 | jmp                 0xc
            //   c705????????0a000000     |     

        $sequence_9 = { 8b4508 803800 7448 8d45fc ff00 }
            // n = 5, score = 700
            //   8b4508               | mov                 eax, dword ptr [ebp + 8]
            //   803800               | cmp                 byte ptr [eax], 0
            //   7448                 | je                  0x4a
            //   8d45fc               | lea                 eax, [ebp - 4]
            //   ff00                 | inc                 dword ptr [eax]

    condition:
        7 of them and filesize < 264192
}