rule win_smanager_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2022-11-21"
        version = "1"
        description = "Detects win.smanager."
        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.smanager"
        malpedia_rule_date = "20221118"
        malpedia_hash = "e0702e2e6d1d00da65c8a29a4ebacd0a4c59e1af"
        malpedia_version = "20221125"
        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 = { 51 ffd0 83c40c c7460800000000 }
            // n = 4, score = 600
            //   51                   | lea                 edx, [0xa98f]
            //   ffd0                 | dec                 eax
            //   83c40c               | mov                 ecx, ebx
            //   c7460800000000       | dec                 eax

        $sequence_1 = { 8b4608 85c0 7420 a801 7515 }
            // n = 5, score = 600
            //   8b4608               | add                 esp, 0xc
            //   85c0                 | mov                 dword ptr [esi + 8], 0
            //   7420                 | push                esi
            //   a801                 | push                0
            //   7515                 | push                0

        $sequence_2 = { 740e 3d45270000 7407 3d46270000 }
            // n = 4, score = 600
            //   740e                 | push                0
            //   3d45270000           | push                0
            //   7407                 | push                esi
            //   3d46270000           | je                  0x12

        $sequence_3 = { 85f6 7417 8b0e 85c9 }
            // n = 4, score = 600
            //   85f6                 | dec                 eax
            //   7417                 | add                 ecx, 0x50
            //   8b0e                 | mov                 edx, 0x20
            //   85c9                 | inc                 esp

        $sequence_4 = { 8b4510 85c0 7407 50 }
            // n = 4, score = 600
            //   8b4510               | push                ecx
            //   85c0                 | push                ecx
            //   7407                 | call                eax
            //   50                   | add                 esp, 0xc

        $sequence_5 = { 8b7604 6a00 6a00 56 }
            // n = 4, score = 600
            //   8b7604               | dec                 eax
            //   6a00                 | mov                 ecx, dword ptr [edi + 8]
            //   6a00                 | dec                 esp
            //   56                   | lea                 eax, [esi + 0xf0]

        $sequence_6 = { 7410 6a00 6a00 6830001100 }
            // n = 4, score = 600
            //   7410                 | mov                 ecx, eax
            //   6a00                 | dec                 eax
            //   6a00                 | mov                 ebx, eax
            //   6830001100           | dec                 eax

        $sequence_7 = { 56 68???????? 6a00 6a00 ff15???????? 8bf8 897e28 }
            // n = 7, score = 600
            //   56                   | mov                 ecx, dword ptr [ebx + 0x30]
            //   68????????           |                     
            //   6a00                 | dec                 eax
            //   6a00                 | mov                 dword ptr [ebx + 0x30], 0
            //   ff15????????         |                     
            //   8bf8                 | mov                 esi, dword ptr [esi + 4]
            //   897e28               | push                0

        $sequence_8 = { ff15???????? 32c0 e9???????? 0f1005???????? }
            // n = 4, score = 300
            //   ff15????????         |                     
            //   32c0                 | xor                 al, al
            //   e9????????           |                     
            //   0f1005????????       |                     

        $sequence_9 = { 0007 b15a 0007 b15a }
            // n = 4, score = 100
            //   0007                 | add                 eax, dword ptr [ecx]
            //   b15a                 | add                 byte ptr [esi], al
            //   0007                 | cld                 
            //   b15a                 | pop                 ecx

        $sequence_10 = { 750a ff15???????? 33c0 eb5a ba06000000 4c8d4c2430 c644243001 }
            // n = 7, score = 100
            //   750a                 | inc                 ecx
            //   ff15????????         |                     
            //   33c0                 | mov                 dword ptr [esi], eax
            //   eb5a                 | lea                 eax, [edi + 1]
            //   ba06000000           | jmp                 0x7f
            //   4c8d4c2430           | mov                 ebx, 1
            //   c644243001           | dec                 esp

        $sequence_11 = { 0000 8b9534fdffff 83c201 899534fdffff }
            // n = 4, score = 100
            //   0000                 | add                 dword ptr [edx], eax
            //   8b9534fdffff         | add                 byte ptr [eax], al
            //   83c201               | sub                 ch, 0x4a
            //   899534fdffff         | add                 byte ptr [esi + edi*8 - 1], al

        $sequence_12 = { 0000 80ed4a 0044feff ff900100008c }
            // n = 4, score = 100
            //   0000                 | mov                 edi, eax
            //   80ed4a               | mov                 dword ptr [esi + 0x28], edi
            //   0044feff             | push                0
            //   ff900100008c         | push                0

        $sequence_13 = { 48c7431000000000 c60300 83c8ff e9???????? }
            // n = 4, score = 100
            //   48c7431000000000     | dec                 eax
            //   c60300               | mov                 dword ptr [ebx + 0x10], 0
            //   83c8ff               | mov                 byte ptr [ebx], 0
            //   e9????????           |                     

        $sequence_14 = { c7473002000000 488b4f08 4c8d86f0000000 4883c150 ba20000000 448bca }
            // n = 6, score = 100
            //   c7473002000000       | mov                 ecx, eax
            //   488b4f08             | jmp                 0x77
            //   4c8d86f0000000       | dec                 eax
            //   4883c150             | mov                 ecx, dword ptr [ecx + 8]
            //   ba20000000           | jmp                 0x6d
            //   448bca               | jne                 0xc

        $sequence_15 = { 0004fe 59 0044fe59 0089fe590000 }
            // n = 4, score = 100
            //   0004fe               | add                 byte ptr [edi], cl
            //   59                   | add                 byte ptr [ebx], al
            //   0044fe59             | mov                 cl, 0x57
            //   0089fe590000         | add                 byte ptr [eax], al

        $sequence_16 = { 4c8bc8 e8???????? eb72 488b4908 e8???????? eb67 }
            // n = 6, score = 100
            //   4c8bc8               | mov                 eax, dword ptr [eax + 0x18]
            //   e8????????           |                     
            //   eb72                 | dec                 eax
            //   488b4908             | mov                 ecx, dword ptr [eax]
            //   e8????????           |                     
            //   eb67                 | mov                 eax, dword ptr [ecx]

        $sequence_17 = { 488b4018 488b08 8b01 418906 8d4701 eb72 bb01000000 }
            // n = 7, score = 100
            //   488b4018             | dec                 eax
            //   488b08               | lea                 eax, [ebp + 0x70]
            //   8b01                 | dec                 eax
            //   418906               | mov                 dword ptr [esp + 0x20], eax
            //   8d4701               | dec                 esp
            //   eb72                 | lea                 ecx, [esp + 0x30]
            //   bb01000000           | dec                 eax

        $sequence_18 = { 488d1592a90000 488bc8 488bd8 ff15???????? 488d158fa90000 488bcb }
            // n = 6, score = 100
            //   488d1592a90000       | xor                 eax, eax
            //   488bc8               | jmp                 0x5e
            //   488bd8               | mov                 edx, 6
            //   ff15????????         |                     
            //   488d158fa90000       | dec                 esp
            //   488bcb               | lea                 ecx, [esp + 0x30]

        $sequence_19 = { 0006 fc 59 008dfd590000 }
            // n = 4, score = 100
            //   0006                 | or                  al, 0xc
            //   fc                   | add                 byte ptr [esi + edi*8], al
            //   59                   | pop                 ecx
            //   008dfd590000         | add                 byte ptr [esi + edi*8 + 0x59], al

        $sequence_20 = { 0003 b157 0000 0c0c }
            // n = 4, score = 100
            //   0003                 | push                eax
            //   b157                 | add                 byte ptr [ecx], al
            //   0000                 | into                
            //   0c0c                 | push                eax

        $sequence_21 = { e8???????? 488d442434 4889442428 488d4570 4889442420 4c8d4c2430 }
            // n = 6, score = 100
            //   e8????????           |                     
            //   488d442434           | or                  eax, 0xffffffff
            //   4889442428           | dec                 eax
            //   488d4570             | lea                 eax, [esp + 0x34]
            //   4889442420           | dec                 eax
            //   4c8d4c2430           | mov                 dword ptr [esp + 0x28], eax

        $sequence_22 = { 0001 ce 50 0008 }
            // n = 4, score = 100
            //   0001                 | dec                 edx
            //   ce                   | add                 byte ptr [edi + 0x73], dh
            //   50                   | add                 byte ptr [eax], al
            //   0008                 | mov                 edx, dword ptr [ebp - 0x2cc]

        $sequence_23 = { 0000 0c0c 0c0c 0c0c 0c0c 0c0c 0102 }
            // n = 7, score = 100
            //   0000                 | je                  0x24
            //   0c0c                 | test                al, 1
            //   0c0c                 | jne                 0x1d
            //   0c0c                 | push                0xd
            //   0c0c                 | add                 esp, 4
            //   0c0c                 | mov                 esi, eax
            //   0102                 | push                0

    condition:
        7 of them and filesize < 10013696
}