rule win_deputydog_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2023-07-11"
        version = "1"
        description = "Detects win.deputydog."
        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.deputydog"
        malpedia_rule_date = "20230705"
        malpedia_hash = "42d0574f4405bd7d2b154d321d345acb18834a41"
        malpedia_version = "20230715"
        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 = { 8d85c0fdffff 6a08 50 8d043e 50 e8???????? 83c430 }
            // n = 7, score = 100
            //   8d85c0fdffff         | lea                 eax, [ebp - 0x240]
            //   6a08                 | push                8
            //   50                   | push                eax
            //   8d043e               | lea                 eax, [esi + edi]
            //   50                   | push                eax
            //   e8????????           |                     
            //   83c430               | add                 esp, 0x30

        $sequence_1 = { 6a01 8d4e04 ff15???????? 8b4df4 5e }
            // n = 5, score = 100
            //   6a01                 | push                1
            //   8d4e04               | lea                 ecx, [esi + 4]
            //   ff15????????         |                     
            //   8b4df4               | mov                 ecx, dword ptr [ebp - 0xc]
            //   5e                   | pop                 esi

        $sequence_2 = { ff15???????? 8b461c 8b00 83c008 8b4004 }
            // n = 5, score = 100
            //   ff15????????         |                     
            //   8b461c               | mov                 eax, dword ptr [esi + 0x1c]
            //   8b00                 | mov                 eax, dword ptr [eax]
            //   83c008               | add                 eax, 8
            //   8b4004               | mov                 eax, dword ptr [eax + 4]

        $sequence_3 = { 8bce 895dfc e8???????? 85c0 7508 885d0f }
            // n = 6, score = 100
            //   8bce                 | mov                 ecx, esi
            //   895dfc               | mov                 dword ptr [ebp - 4], ebx
            //   e8????????           |                     
            //   85c0                 | test                eax, eax
            //   7508                 | jne                 0xa
            //   885d0f               | mov                 byte ptr [ebp + 0xf], bl

        $sequence_4 = { 50 8d4514 50 e8???????? e9???????? 6a01 5b }
            // n = 7, score = 100
            //   50                   | push                eax
            //   8d4514               | lea                 eax, [ebp + 0x14]
            //   50                   | push                eax
            //   e8????????           |                     
            //   e9????????           |                     
            //   6a01                 | push                1
            //   5b                   | pop                 ebx

        $sequence_5 = { 8d85a4fbffff 50 ffd6 8b4dfc 83c410 8d85a4fbffff 50 }
            // n = 7, score = 100
            //   8d85a4fbffff         | lea                 eax, [ebp - 0x45c]
            //   50                   | push                eax
            //   ffd6                 | call                esi
            //   8b4dfc               | mov                 ecx, dword ptr [ebp - 4]
            //   83c410               | add                 esp, 0x10
            //   8d85a4fbffff         | lea                 eax, [ebp - 0x45c]
            //   50                   | push                eax

        $sequence_6 = { ff15???????? 8b450c 8b4004 eb05 a1???????? 85ff 0f8ec5000000 }
            // n = 7, score = 100
            //   ff15????????         |                     
            //   8b450c               | mov                 eax, dword ptr [ebp + 0xc]
            //   8b4004               | mov                 eax, dword ptr [eax + 4]
            //   eb05                 | jmp                 7
            //   a1????????           |                     
            //   85ff                 | test                edi, edi
            //   0f8ec5000000         | jle                 0xcb

        $sequence_7 = { 57 53 8d4dd8 8845d8 ff15???????? bf???????? 57 }
            // n = 7, score = 100
            //   57                   | push                edi
            //   53                   | push                ebx
            //   8d4dd8               | lea                 ecx, [ebp - 0x28]
            //   8845d8               | mov                 byte ptr [ebp - 0x28], al
            //   ff15????????         |                     
            //   bf????????           |                     
            //   57                   | push                edi

        $sequence_8 = { 6a01 a3???????? 58 c20c00 b8???????? }
            // n = 5, score = 100
            //   6a01                 | push                1
            //   a3????????           |                     
            //   58                   | pop                 eax
            //   c20c00               | ret                 0xc
            //   b8????????           |                     

        $sequence_9 = { 50 ff15???????? 8d858cfdffff 68???????? }
            // n = 4, score = 100
            //   50                   | push                eax
            //   ff15????????         |                     
            //   8d858cfdffff         | lea                 eax, [ebp - 0x274]
            //   68????????           |                     

    condition:
        7 of them and filesize < 90112
}