rule win_moriagent_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.moriagent"
        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 = { b802000000 eb05 b801000000 33ff }
            // n = 4, score = 200
            //   b802000000           | mov                 eax, 2
            //   eb05                 | jmp                 7
            //   b801000000           | mov                 eax, 1
            //   33ff                 | xor                 edi, edi

        $sequence_1 = { 4c89742458 48c74424600f000000 4488742448 458d460d 488d150bc90500 }
            // n = 5, score = 100
            //   4c89742458           | lea                 edx, [ecx - 0x10]
            //   48c74424600f000000     | mov    dword ptr [ecx + ebx - 0xac], edx
            //   4488742448           | dec                 eax
            //   458d460d             | mov                 dword ptr [edi + 0x18], ebp
            //   488d150bc90500       | movups              xmm0, xmmword ptr [ebx]

        $sequence_2 = { 8bcf e8???????? 8b5ddc 83c404 897b04 8bc3 }
            // n = 6, score = 100
            //   8bcf                 | push                esi
            //   e8????????           |                     
            //   8b5ddc               | inc                 ecx
            //   83c404               | push                edi
            //   897b04               | dec                 eax
            //   8bc3                 | lea                 ebp, [esp - 0x80]

        $sequence_3 = { 3bd0 772a 837de010 894f10 8bcf 7202 8b0f }
            // n = 7, score = 100
            //   3bd0                 | dec                 eax
            //   772a                 | mov                 dword ptr [ebp - 0x60], 0xfffffffe
            //   837de010             | dec                 eax
            //   894f10               | xor                 eax, esp
            //   8bcf                 | dec                 eax
            //   7202                 | mov                 dword ptr [ebp + 0xf0], eax
            //   8b0f                 | xor                 edi, edi

        $sequence_4 = { e8???????? 83c408 8b8508ffffff 83c018 898508ffffff }
            // n = 5, score = 100
            //   e8????????           |                     
            //   83c408               | dec                 eax
            //   8b8508ffffff         | mov                 eax, esp
            //   83c018               | push                ebp
            //   898508ffffff         | inc                 ecx

        $sequence_5 = { 488bc4 55 4156 4157 488d6c2480 4881ec80010000 48c745a0feffffff }
            // n = 7, score = 100
            //   488bc4               | movups              xmmword ptr [edi], xmm0
            //   55                   | movups              xmm1, xmmword ptr [ebx + 0x10]
            //   4156                 | movups              xmmword ptr [edi + 0x10], xmm1
            //   4157                 | dec                 eax
            //   488d6c2480           | mov                 dword ptr [ebx + 0x10], ebp
            //   4881ec80010000       | push                edi
            //   48c745a0feffffff     | dec                 eax

        $sequence_6 = { 8bd0 c745fc00000000 837a1410 7202 8b12 }
            // n = 5, score = 100
            //   8bd0                 | jmp                 0xc
            //   c745fc00000000       | mov                 eax, 1
            //   837a1410             | xor                 edi, edi
            //   7202                 | mov                 eax, 2
            //   8b12                 | jmp                 0xc

        $sequence_7 = { e8???????? 90 488d8dd0000000 e8???????? 488b8df0000000 4833cc }
            // n = 6, score = 100
            //   e8????????           |                     
            //   90                   | nop                 
            //   488d8dd0000000       | dec                 eax
            //   e8????????           |                     
            //   488b8df0000000       | lea                 ecx, [ebp + 0xd0]
            //   4833cc               | dec                 eax

        $sequence_8 = { 8bcf 7202 8b0f 8b75e4 52 03f1 }
            // n = 6, score = 100
            //   8bcf                 | dec                 eax
            //   7202                 | mov                 dword ptr [esp + 0x78], edi
            //   8b0f                 | dec                 eax
            //   8b75e4               | mov                 dword ptr [ebp - 0x80], 0xf
            //   52                   | jmp                 0xe
            //   03f1                 | mov                 eax, 2

        $sequence_9 = { 488d542430 488bcb e8???????? 488b5c2430 488d4d88 e8???????? 488b4c2478 }
            // n = 7, score = 100
            //   488d542430           | mov                 ecx, dword ptr [ebp + 0xf0]
            //   488bcb               | dec                 eax
            //   e8????????           |                     
            //   488b5c2430           | xor                 ecx, esp
            //   488d4d88             | dec                 eax
            //   e8????????           |                     
            //   488b4c2478           | lea                 edx, [esp + 0x30]

        $sequence_10 = { 488d052e1a0600 4889841958ffffff 488b8358ffffff 48634804 8d51f0 89941954ffffff }
            // n = 6, score = 100
            //   488d052e1a0600       | dec                 eax
            //   4889841958ffffff     | mov                 ecx, ebx
            //   488b8358ffffff       | dec                 eax
            //   48634804             | mov                 ebx, dword ptr [esp + 0x30]
            //   8d51f0               | dec                 eax
            //   89941954ffffff       | lea                 ecx, [ebp - 0x78]

        $sequence_11 = { 48896f18 0f1003 0f1107 0f104b10 0f114f10 48896b10 }
            // n = 6, score = 100
            //   48896f18             | dec                 eax
            //   0f1003               | mov                 ecx, dword ptr [esp + 0x78]
            //   0f1107               | dec                 eax
            //   0f104b10             | lea                 eax, [0x61a2e]
            //   0f114f10             | dec                 eax
            //   48896b10             | mov                 dword ptr [ecx + ebx - 0xa8], eax

        $sequence_12 = { 57 4883ec20 488d0557140700 8bfa }
            // n = 4, score = 100
            //   57                   | dec                 eax
            //   4883ec20             | mov                 eax, dword ptr [ebx - 0xa8]
            //   488d0557140700       | dec                 eax
            //   8bfa                 | arpl                word ptr [eax + 4], cx

        $sequence_13 = { 8d8dccfeffff e9???????? 8d8d48ffffff e9???????? }
            // n = 4, score = 100
            //   8d8dccfeffff         | dec                 eax
            //   e9????????           |                     
            //   8d8d48ffffff         | sub                 esp, 0x180
            //   e9????????           |                     

        $sequence_14 = { 03cf 894510 2bc1 0fbe16 }
            // n = 4, score = 100
            //   03cf                 | mov                 eax, 1
            //   894510               | xor                 edi, edi
            //   2bc1                 | add                 esp, 8
            //   0fbe16               | mov                 eax, dword ptr [ebp - 0xf8]

    condition:
        7 of them and filesize < 1347904
}