rule win_moriagent_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2021-06-10"
        version = "1"
        description = "Detects win.moriagent."
        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.moriagent"
        malpedia_rule_date = "20210604"
        malpedia_hash = "be09d5d71e77373c0f538068be31a2ad4c69cfbd"
        malpedia_version = "20210616"
        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 = { eb0c b802000000 eb05 b801000000 33ff }
            // n = 5, score = 200
            //   eb0c                 | jmp                 0xe
            //   b802000000           | mov                 eax, 2
            //   eb05                 | jmp                 7
            //   b801000000           | mov                 eax, 1
            //   33ff                 | xor                 edi, edi

        $sequence_1 = { 90 4c89742450 48c74424580f000000 c644244000 }
            // n = 4, score = 100
            //   90                   | mov                 dword ptr [ebp - 0x48], 7
            //   4c89742450           | inc                 sp
            //   48c74424580f000000     | mov    dword ptr [ebp - 0x60], ebp
            //   c644244000           | inc                 ebp

        $sequence_2 = { 90 4c89742438 48c74424400f000000 c644242800 }
            // n = 4, score = 100
            //   90                   | nop                 
            //   4c89742438           | dec                 esp
            //   48c74424400f000000     | mov    dword ptr [ebp - 0x70], ebp
            //   c644242800           | dec                 eax

        $sequence_3 = { 660fd68534efffff 0d80000000 83c808 c745fc0c000000 8db524efffff }
            // n = 5, score = 100
            //   660fd68534efffff     | movq                qword ptr [ebp - 0x10cc], xmm0
            //   0d80000000           | or                  eax, 0x80
            //   83c808               | or                  eax, 8
            //   c745fc0c000000       | mov                 dword ptr [ebp - 4], 0xc
            //   8db524efffff         | lea                 esi, dword ptr [ebp - 0x10dc]

        $sequence_4 = { 90 4c896db0 48c745b807000000 6644896da0 }
            // n = 4, score = 100
            //   90                   | or                  ecx, 0xffffffff
            //   4c896db0             | inc                 ebp
            //   48c745b807000000     | xor                 eax, eax
            //   6644896da0           | nop                 

        $sequence_5 = { 90 4c8965cf 48c745d70f000000 c645bf00 }
            // n = 4, score = 100
            //   90                   | or                  ecx, 0xffffffff
            //   4c8965cf             | inc                 ebp
            //   48c745d70f000000     | xor                 eax, eax
            //   c645bf00             | dec                 eax

        $sequence_6 = { 8d4d08 e9???????? 8b8560feffff 83e001 0f8412000000 }
            // n = 5, score = 100
            //   8d4d08               | lea                 ecx, dword ptr [ebp + 8]
            //   e9????????           |                     
            //   8b8560feffff         | mov                 eax, dword ptr [ebp - 0x1a0]
            //   83e001               | and                 eax, 1
            //   0f8412000000         | je                  0x18

        $sequence_7 = { 8d4dc8 52 50 e8???????? 834dec04 c745fc02000000 }
            // n = 6, score = 100
            //   8d4dc8               | lea                 ecx, dword ptr [ebp - 0x38]
            //   52                   | push                edx
            //   50                   | push                eax
            //   e8????????           |                     
            //   834dec04             | or                  dword ptr [ebp - 0x14], 4
            //   c745fc02000000       | mov                 dword ptr [ebp - 4], 2

        $sequence_8 = { 90 4c8965a7 48c745af0f000000 c6459700 4983c9ff 4533c0 488bd6 }
            // n = 7, score = 100
            //   90                   | nop                 
            //   4c8965a7             | dec                 esp
            //   48c745af0f000000     | mov                 dword ptr [ebp - 0x59], esp
            //   c6459700             | dec                 eax
            //   4983c9ff             | mov                 dword ptr [ebp - 0x51], 0xf
            //   4533c0               | mov                 byte ptr [ebp - 0x69], 0
            //   488bd6               | dec                 ecx

        $sequence_9 = { 0f1107 f30f7e45d8 660fd64710 eb60 8b55dc 83fa10 7258 }
            // n = 7, score = 100
            //   0f1107               | movups              xmmword ptr [edi], xmm0
            //   f30f7e45d8           | movq                xmm0, qword ptr [ebp - 0x28]
            //   660fd64710           | movq                qword ptr [edi + 0x10], xmm0
            //   eb60                 | jmp                 0x62
            //   8b55dc               | mov                 edx, dword ptr [ebp - 0x24]
            //   83fa10               | cmp                 edx, 0x10
            //   7258                 | jb                  0x5a

        $sequence_10 = { 742b 8bc1 c0e204 c1e802 240f 02c2 }
            // n = 6, score = 100
            //   742b                 | je                  0x2d
            //   8bc1                 | mov                 eax, ecx
            //   c0e204               | shl                 dl, 4
            //   c1e802               | shr                 eax, 2
            //   240f                 | and                 al, 0xf
            //   02c2                 | add                 al, dl

        $sequence_11 = { 90 4c8965ef 48c745f70f000000 c645df00 }
            // n = 4, score = 100
            //   90                   | xor                 eax, eax
            //   4c8965ef             | nop                 
            //   48c745f70f000000     | dec                 esp
            //   c645df00             | mov                 dword ptr [ebp - 0x31], esp

        $sequence_12 = { 90 4c896d90 48c7459807000000 6644896d80 }
            // n = 4, score = 100
            //   90                   | lea                 edx, dword ptr [ebp - 1]
            //   4c896d90             | nop                 
            //   48c7459807000000     | dec                 esp
            //   6644896d80           | mov                 dword ptr [ebp - 0x11], esp

        $sequence_13 = { 0f43b59cefffff 0f438d9cefffff 03f2 3bf1 743b 8bf9 }
            // n = 6, score = 100
            //   0f43b59cefffff       | cmovae              esi, dword ptr [ebp - 0x1064]
            //   0f438d9cefffff       | cmovae              ecx, dword ptr [ebp - 0x1064]
            //   03f2                 | add                 esi, edx
            //   3bf1                 | cmp                 esi, ecx
            //   743b                 | je                  0x3d
            //   8bf9                 | mov                 edi, ecx

        $sequence_14 = { 8d8d54efffff 8b8554efffff 83c40c 83bd68efffff10 8b9564efffff }
            // n = 5, score = 100
            //   8d8d54efffff         | lea                 ecx, dword ptr [ebp - 0x10ac]
            //   8b8554efffff         | mov                 eax, dword ptr [ebp - 0x10ac]
            //   83c40c               | add                 esp, 0xc
            //   83bd68efffff10       | cmp                 dword ptr [ebp - 0x1098], 0x10
            //   8b9564efffff         | mov                 edx, dword ptr [ebp - 0x109c]

    condition:
        7 of them and filesize < 1347904
}