rule win_moriagent_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2021-10-07"
        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 = "20211007"
        malpedia_hash = "e5b790e0f888f252d49063a1251ca60ec2832535"
        malpedia_version = "20211008"
        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 = { 8b85b8eeffff 83e010 0f8412000000 83a5b8eeffffef }
            // n = 4, score = 100
            //   8b85b8eeffff         | mov                 eax, dword ptr [ebp - 0x1148]
            //   83e010               | and                 eax, 0x10
            //   0f8412000000         | je                  0x18
            //   83a5b8eeffffef       | and                 dword ptr [ebp - 0x1148], 0xffffffef

        $sequence_2 = { 90 4c8bc3 488bd0 488d4c2448 e8???????? 90 488bd0 }
            // n = 7, score = 100
            //   90                   | dec                 eax
            //   4c8bc3               | lea                 edx, dword ptr [0x64ed1]
            //   488bd0               | dec                 eax
            //   488d4c2448           | lea                 ecx, dword ptr [esp + 0x28]
            //   e8????????           |                     
            //   90                   | nop                 
            //   488bd0               | dec                 esp

        $sequence_3 = { 90 4c8bc3 488bd0 488d4c2420 e8???????? 90 488bd0 }
            // n = 7, score = 100
            //   90                   | lea                 edx, dword ptr [0x6e7c5]
            //   4c8bc3               | dec                 eax
            //   488bd0               | lea                 ecx, dword ptr [ebp - 0x19]
            //   488d4c2420           | nop                 
            //   e8????????           |                     
            //   90                   | nop                 
            //   488bd0               | dec                 esp

        $sequence_4 = { 83feff 0f8421040000 39b57cefffff 8d856cefffff 8bce c78564efffff00000000 0f428d7cefffff }
            // n = 7, score = 100
            //   83feff               | cmp                 esi, -1
            //   0f8421040000         | je                  0x427
            //   39b57cefffff         | cmp                 dword ptr [ebp - 0x1084], esi
            //   8d856cefffff         | lea                 eax, dword ptr [ebp - 0x1094]
            //   8bce                 | mov                 ecx, esi
            //   c78564efffff00000000     | mov    dword ptr [ebp - 0x109c], 0
            //   0f428d7cefffff       | cmovb               ecx, dword ptr [ebp - 0x1084]

        $sequence_5 = { 90 4c8bc0 488d15d14e0600 488d4c2428 }
            // n = 4, score = 100
            //   90                   | lea                 eax, dword ptr [0x5937e]
            //   4c8bc0               | nop                 
            //   488d15d14e0600       | dec                 esp
            //   488d4c2428           | mov                 eax, eax

        $sequence_6 = { 7202 8b12 8bca c78570ffffff00000000 }
            // n = 4, score = 100
            //   7202                 | jb                  4
            //   8b12                 | mov                 edx, dword ptr [edx]
            //   8bca                 | mov                 ecx, edx
            //   c78570ffffff00000000     | mov    dword ptr [ebp - 0x90], 0

        $sequence_7 = { 90 4c8bc0 488d159e930500 488d8da0000000 }
            // n = 4, score = 100
            //   90                   | dec                 eax
            //   4c8bc0               | lea                 edx, dword ptr [0x6e596]
            //   488d159e930500       | dec                 eax
            //   488d8da0000000       | lea                 ecx, dword ptr [ebp - 0x19]

        $sequence_8 = { 90 4c8bc3 488bd0 488d4c2428 e8???????? 90 }
            // n = 6, score = 100
            //   90                   | mov                 eax, eax
            //   4c8bc3               | dec                 eax
            //   488bd0               | lea                 edx, dword ptr [0x6e7c5]
            //   488d4c2428           | dec                 eax
            //   e8????????           |                     
            //   90                   | lea                 ecx, dword ptr [ebp - 0x19]

        $sequence_9 = { eb18 6a00 53 c68554ffffff00 8bcf }
            // n = 5, score = 100
            //   eb18                 | jmp                 0x1a
            //   6a00                 | push                0
            //   53                   | push                ebx
            //   c68554ffffff00       | mov                 byte ptr [ebp - 0xac], 0
            //   8bcf                 | mov                 ecx, edi

        $sequence_10 = { 90 4c8bc0 488d15c5e70600 488d4de7 }
            // n = 4, score = 100
            //   90                   | dec                 eax
            //   4c8bc0               | lea                 ecx, dword ptr [ebp + 0xa0]
            //   488d15c5e70600       | nop                 
            //   488d4de7             | dec                 esp

        $sequence_11 = { 0f57c0 897dc0 c745ec00000000 660fd607 c7470800000000 8955c4 }
            // n = 6, score = 100
            //   0f57c0               | xorps               xmm0, xmm0
            //   897dc0               | mov                 dword ptr [ebp - 0x40], edi
            //   c745ec00000000       | mov                 dword ptr [ebp - 0x14], 0
            //   660fd607             | movq                qword ptr [edi], xmm0
            //   c7470800000000       | mov                 dword ptr [edi + 8], 0
            //   8955c4               | mov                 dword ptr [ebp - 0x3c], edx

        $sequence_12 = { 8bc6 2bc2 83f80b 722e 8d420b }
            // n = 5, score = 100
            //   8bc6                 | mov                 eax, esi
            //   2bc2                 | sub                 eax, edx
            //   83f80b               | cmp                 eax, 0xb
            //   722e                 | jb                  0x30
            //   8d420b               | lea                 eax, dword ptr [edx + 0xb]

        $sequence_13 = { 6bd838 8b04bd00844200 f644032801 7444 837c0318ff 743d e8???????? }
            // n = 7, score = 100
            //   6bd838               | imul                ebx, eax, 0x38
            //   8b04bd00844200       | mov                 eax, dword ptr [edi*4 + 0x428400]
            //   f644032801           | test                byte ptr [ebx + eax + 0x28], 1
            //   7444                 | je                  0x46
            //   837c0318ff           | cmp                 dword ptr [ebx + eax + 0x18], -1
            //   743d                 | je                  0x3f
            //   e8????????           |                     

        $sequence_14 = { 90 4c8bc0 488d1596e50600 488d4de7 e8???????? 90 }
            // n = 6, score = 100
            //   90                   | nop                 
            //   4c8bc0               | dec                 esp
            //   488d1596e50600       | mov                 eax, eax
            //   488d4de7             | dec                 eax
            //   e8????????           |                     
            //   90                   | lea                 edx, dword ptr [0x6e596]

    condition:
        7 of them and filesize < 1347904
}