rule win_smanager_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2022-05-16"
        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 = "20220513"
        malpedia_hash = "7f4b2229e6ae614d86d74917f6d5b41890e62a26"
        malpedia_version = "20220516"
        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 = { 8b7604 6a00 6a00 56 }
            // n = 4, score = 600
            //   8b7604               | mov                 ebx, eax
            //   6a00                 | dec                 esp
            //   6a00                 | lea                 eax, [eax + 0x20]
            //   56                   | dec                 esp

        $sequence_1 = { 85f6 7417 8b0e 85c9 }
            // n = 4, score = 600
            //   85f6                 | add                 esp, 0xc
            //   7417                 | mov                 dword ptr [esi + 8], 0
            //   8b0e                 | mov                 esi, dword ptr [esi + 4]
            //   85c9                 | push                0

        $sequence_2 = { 7410 6a00 6a00 6830001100 }
            // n = 4, score = 600
            //   7410                 | push                eax
            //   6a00                 | push                0
            //   6a00                 | mov                 edi, eax
            //   6830001100           | mov                 dword ptr [esi + 0x28], edi

        $sequence_3 = { 6a0d e8???????? 83c404 8bf0 }
            // n = 4, score = 600
            //   6a0d                 | add                 esp, 0x20
            //   e8????????           |                     
            //   83c404               | add                 esi, 2
            //   8bf0                 | push                0x22

        $sequence_4 = { 7409 6a02 51 51 ffd0 83c40c c7460800000000 }
            // n = 7, score = 600
            //   7409                 | lea                 ebp, [eax - 0x658]
            //   6a02                 | dec                 eax
            //   51                   | sub                 esp, 0x740
            //   51                   | dec                 eax
            //   ffd0                 | mov                 dword ptr [esp + 0x50], 0xfffffffe
            //   83c40c               | dec                 eax
            //   c7460800000000       | mov                 dword ptr [eax + 0x10], ebx

        $sequence_5 = { 83c602 6a22 56 e8???????? 83c408 85c0 }
            // n = 6, score = 600
            //   83c602               | push                esi
            //   6a22                 | dec                 eax
            //   56                   | sub                 esp, 0x20
            //   e8????????           |                     
            //   83c408               | xor                 esi, esi
            //   85c0                 | inc                 ecx

        $sequence_6 = { 6a00 ff15???????? 8bf8 897e28 }
            // n = 4, score = 600
            //   6a00                 | je                  0x81
            //   ff15????????         |                     
            //   8bf8                 | mov                 ecx, dword ptr [ebx]
            //   897e28               | dec                 eax

        $sequence_7 = { 8b4510 85c0 7407 50 }
            // n = 4, score = 600
            //   8b4510               | mov                 ecx, eax
            //   85c0                 | mov                 word ptr [eax + 0x18], 0
            //   7407                 | dec                 ebp
            //   50                   | test                eax, eax

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

        $sequence_9 = { 0001 ce 50 0008 }
            // n = 4, score = 100
            //   0001                 | cmp                 eax, 0x2745
            //   ce                   | je                  0xe
            //   50                   | cmp                 eax, 0x2746
            //   0008                 | add                 byte ptr [eax], al

        $sequence_10 = { 0007 b15a 00c4 b15a }
            // n = 4, score = 100
            //   0007                 | mov                 cl, 0x5a
            //   b15a                 | add                 byte ptr [ecx - 0x76ffa550], cl
            //   00c4                 | mov                 al, 0x5a
            //   b15a                 | add                 byte ptr [edi], al

        $sequence_11 = { 48896c2410 4889742418 48897c2420 4156 4883ec20 33f6 418bd8 }
            // n = 7, score = 100
            //   48896c2410           | sub                 esp, 0x20
            //   4889742418           | dec                 eax
            //   48897c2420           | lea                 ebx, [0x11b9f]
            //   4156                 | dec                 eax
            //   4883ec20             | lea                 edi, [0x11b98]
            //   33f6                 | jmp                 0x23
            //   418bd8               | dec                 ecx

        $sequence_12 = { 48895c2408 57 4883ec20 488d1d9f1b0100 488d3d981b0100 eb0e }
            // n = 6, score = 100
            //   48895c2408           | mov                 edi, eax
            //   57                   | dec                 eax
            //   4883ec20             | mov                 dword ptr [esp + 0x20], eax
            //   488d1d9f1b0100       | jmp                 0xffffff99
            //   488d3d981b0100       | dec                 eax
            //   eb0e                 | lea                 edx, [0xc43d]

        $sequence_13 = { 0000 80ed4a 0044feff ff900100008c }
            // n = 4, score = 100
            //   0000                 | mov                 dword ptr [esi + 8], 0
            //   80ed4a               | push                0
            //   0044feff             | mov                 edi, eax
            //   ff900100008c         | mov                 dword ptr [esi + 0x28], edi

        $sequence_14 = { 4c8bf8 4889442438 488bf8 4889442420 eb97 488d153dc40000 488d0d16c40000 }
            // n = 7, score = 100
            //   4c8bf8               | dec                 eax
            //   4889442438           | lea                 eax, [esp + 0x70]
            //   488bf8               | dec                 esp
            //   4889442420           | mov                 edi, eax
            //   eb97                 | dec                 eax
            //   488d153dc40000       | mov                 dword ptr [esp + 0x38], eax
            //   488d0d16c40000       | dec                 eax

        $sequence_15 = { 0007 b15a 0007 b15a }
            // n = 4, score = 100
            //   0007                 | add                 byte ptr [eax], cl
            //   b15a                 | into                
            //   0007                 | push                eax
            //   b15a                 | add                 byte ptr [ecx], al

        $sequence_16 = { 0008 53 4f 00ef }
            // n = 4, score = 100
            //   0008                 | mov                 al, 0x5a
            //   53                   | add                 byte ptr [edi], al
            //   4f                   | mov                 cl, 0x5a
            //   00ef                 | add                 byte ptr [edi], al

        $sequence_17 = { 488da8a8f9ffff 4881ec40070000 48c7442450feffffff 48895810 }
            // n = 4, score = 100
            //   488da8a8f9ffff       | mov                 esi, dword ptr [esp + 0x80]
            //   4881ec40070000       | cmp                 esi, 0xc
            //   48c7442450feffffff     | dec    eax
            //   48895810             | mov                 dword ptr [esp + 0x10], ebp

        $sequence_18 = { 0007 b15a 0089b05a0089 b05a }
            // n = 4, score = 100
            //   0007                 | or                  al, 0xc
            //   b15a                 | or                  al, 0xc
            //   0089b05a0089         | or                  al, 0xc
            //   b05a                 | add                 byte ptr [ebx], al

        $sequence_19 = { 0003 b157 0000 0c0c }
            // n = 4, score = 100
            //   0003                 | call                dword ptr [eax - 0x73ffffff]
            //   b157                 | in                  eax, dx
            //   0000                 | dec                 edx
            //   0c0c                 | add                 byte ptr [eax], al

        $sequence_20 = { 4c8d4020 4c8bc8 66c740180000 4d85c0 7473 8b0b }
            // n = 6, score = 100
            //   4c8d4020             | mov                 edi, ecx
            //   4c8bc8               | dec                 eax
            //   66c740180000         | mov                 ebx, ecx
            //   4d85c0               | dec                 ebp
            //   7473                 | test                ecx, ecx
            //   8b0b                 | je                  0x175

        $sequence_21 = { 0000 0c0c 0c0c 0c0c 0c0c 0c0c 0102 }
            // n = 7, score = 100
            //   0000                 | cmp                 eax, 0x2745
            //   0c0c                 | je                  9
            //   0c0c                 | cmp                 eax, 0x2746
            //   0c0c                 | push                ecx
            //   0c0c                 | push                ecx
            //   0c0c                 | call                eax
            //   0102                 | add                 esp, 0xc

        $sequence_22 = { 498bf9 488bd9 4d85c9 0f8469010000 8bb42480000000 83fe0c }
            // n = 6, score = 100
            //   498bf9               | dec                 eax
            //   488bd9               | lea                 ecx, [0xc416]
            //   4d85c9               | dec                 eax
            //   0f8469010000         | mov                 dword ptr [esp + 8], ebx
            //   8bb42480000000       | push                edi
            //   83fe0c               | dec                 eax

        $sequence_23 = { c644244800 807c247000 7505 4533c0 eb1c 488d442470 }
            // n = 6, score = 100
            //   c644244800           | mov                 byte ptr [esp + 0x48], 0
            //   807c247000           | cmp                 byte ptr [esp + 0x70], 0
            //   7505                 | jne                 7
            //   4533c0               | inc                 ebp
            //   eb1c                 | xor                 eax, eax
            //   488d442470           | jmp                 0x1e

    condition:
        7 of them and filesize < 10013696
}