rule win_tinymet_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.tinymet"
        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 = { e8???????? a3???????? a1???????? ff700c e8???????? }
            // n = 5, score = 100
            //   e8????????           |                     
            //   a3????????           |                     
            //   a1????????           |                     
            //   ff700c               | push                dword ptr [eax + 0xc]
            //   e8????????           |                     

        $sequence_1 = { c70424???????? e9???????? 6a01 eb1b 6a01 ff35???????? ff35???????? }
            // n = 7, score = 100
            //   c70424????????       |                     
            //   e9????????           |                     
            //   6a01                 | push                1
            //   eb1b                 | jmp                 0x1d
            //   6a01                 | push                1
            //   ff35????????         |                     
            //   ff35????????         |                     

        $sequence_2 = { 8bf8 85ff 0f84c0000000 53 }
            // n = 4, score = 100
            //   8bf8                 | mov                 edi, eax
            //   85ff                 | test                edi, edi
            //   0f84c0000000         | je                  0xc6
            //   53                   | push                ebx

        $sequence_3 = { 5e c3 68???????? e8???????? 59 6aff e8???????? }
            // n = 7, score = 100
            //   5e                   | pop                 esi
            //   c3                   | ret                 
            //   68????????           |                     
            //   e8????????           |                     
            //   59                   | pop                 ecx
            //   6aff                 | push                -1
            //   e8????????           |                     

        $sequence_4 = { 385d10 7416 6a04 8d45fc }
            // n = 4, score = 100
            //   385d10               | cmp                 byte ptr [ebp + 0x10], bl
            //   7416                 | je                  0x18
            //   6a04                 | push                4
            //   8d45fc               | lea                 eax, [ebp - 4]

        $sequence_5 = { 50 e8???????? 59 59 5f a3???????? 5e }
            // n = 7, score = 100
            //   50                   | push                eax
            //   e8????????           |                     
            //   59                   | pop                 ecx
            //   59                   | pop                 ecx
            //   5f                   | pop                 edi
            //   a3????????           |                     
            //   5e                   | pop                 esi

        $sequence_6 = { 56 ff15???????? 85c0 740a 68???????? e9???????? 53 }
            // n = 7, score = 100
            //   56                   | push                esi
            //   ff15????????         |                     
            //   85c0                 | test                eax, eax
            //   740a                 | je                  0xc
            //   68????????           |                     
            //   e9????????           |                     
            //   53                   | push                ebx

        $sequence_7 = { 8d45f0 50 e8???????? 83c40c 83f85c 75e4 8d45e8 }
            // n = 7, score = 100
            //   8d45f0               | lea                 eax, [ebp - 0x10]
            //   50                   | push                eax
            //   e8????????           |                     
            //   83c40c               | add                 esp, 0xc
            //   83f85c               | cmp                 eax, 0x5c
            //   75e4                 | jne                 0xffffffe6
            //   8d45e8               | lea                 eax, [ebp - 0x18]

    condition:
        7 of them and filesize < 57344
}