rule win_amadey_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2020-10-14"
        version = "1"
        description = "autogenerated rule brought to you by yara-signator"
        tool = "yara-signator v0.5.0"
        tool_config = "callsandjumps;datarefs;binvalue"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.amadey"
        malpedia_rule_date = "20201014"
        malpedia_hash = "a7e3bd57eaf12bf3ea29a863c041091ba3af9ac9"
        malpedia_version = "20201014"
        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 = { 890424 e8???????? 83ec04 8945f4 837df400 7454 }
            // n = 6, score = 600
            //   890424               | mov                 dword ptr [esp], eax
            //   e8????????           |                     
            //   83ec04               | sub                 esp, 4
            //   8945f4               | mov                 dword ptr [ebp - 0xc], eax
            //   837df400             | cmp                 dword ptr [ebp - 0xc], 0
            //   7454                 | je                  0x56

        $sequence_1 = { e8???????? 83ec04 e8???????? c70424???????? e8???????? 89442404 8d85f8fdffff }
            // n = 7, score = 600
            //   e8????????           |                     
            //   83ec04               | sub                 esp, 4
            //   e8????????           |                     
            //   c70424????????       |                     
            //   e8????????           |                     
            //   89442404             | mov                 dword ptr [esp + 4], eax
            //   8d85f8fdffff         | lea                 eax, [ebp - 0x208]

        $sequence_2 = { e8???????? 83ec04 8945f8 837df800 7434 }
            // n = 5, score = 600
            //   e8????????           |                     
            //   83ec04               | sub                 esp, 4
            //   8945f8               | mov                 dword ptr [ebp - 8], eax
            //   837df800             | cmp                 dword ptr [ebp - 8], 0
            //   7434                 | je                  0x36

        $sequence_3 = { e8???????? 84c0 7407 c745fc09000000 c70424???????? e8???????? }
            // n = 6, score = 600
            //   e8????????           |                     
            //   84c0                 | test                al, al
            //   7407                 | je                  9
            //   c745fc09000000       | mov                 dword ptr [ebp - 4], 9
            //   c70424????????       |                     
            //   e8????????           |                     

        $sequence_4 = { e8???????? 83ec0c 8d85f8fbffff 890424 }
            // n = 4, score = 600
            //   e8????????           |                     
            //   83ec0c               | sub                 esp, 0xc
            //   8d85f8fbffff         | lea                 eax, [ebp - 0x408]
            //   890424               | mov                 dword ptr [esp], eax

        $sequence_5 = { c3 55 89e5 83ec08 c745fc00000000 e8???????? 84c0 }
            // n = 7, score = 600
            //   c3                   | ret                 
            //   55                   | push                ebp
            //   89e5                 | mov                 ebp, esp
            //   83ec08               | sub                 esp, 8
            //   c745fc00000000       | mov                 dword ptr [ebp - 4], 0
            //   e8????????           |                     
            //   84c0                 | test                al, al

        $sequence_6 = { 84c0 7407 c745fc06000000 c70424???????? e8???????? 890424 e8???????? }
            // n = 7, score = 600
            //   84c0                 | test                al, al
            //   7407                 | je                  9
            //   c745fc06000000       | mov                 dword ptr [ebp - 4], 6
            //   c70424????????       |                     
            //   e8????????           |                     
            //   890424               | mov                 dword ptr [esp], eax
            //   e8????????           |                     

        $sequence_7 = { 83ec08 83e4f0 b800000000 83c00f }
            // n = 4, score = 600
            //   83ec08               | sub                 esp, 8
            //   83e4f0               | and                 esp, 0xfffffff0
            //   b800000000           | mov                 eax, 0
            //   83c00f               | add                 eax, 0xf

        $sequence_8 = { 891424 e8???????? 83ec20 c70424???????? }
            // n = 4, score = 600
            //   891424               | mov                 dword ptr [esp], edx
            //   e8????????           |                     
            //   83ec20               | sub                 esp, 0x20
            //   c70424????????       |                     

        $sequence_9 = { 8b4508 890424 e8???????? 89c3 c7442404???????? 8b4508 }
            // n = 6, score = 600
            //   8b4508               | mov                 eax, dword ptr [ebp + 8]
            //   890424               | mov                 dword ptr [esp], eax
            //   e8????????           |                     
            //   89c3                 | mov                 ebx, eax
            //   c7442404????????     |                     
            //   8b4508               | mov                 eax, dword ptr [ebp + 8]

    condition:
        7 of them and filesize < 264192
}