rule win_slothfulmedia_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2023-03-28"
        version = "1"
        description = "Detects win.slothfulmedia."
        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.slothfulmedia"
        malpedia_rule_date = "20230328"
        malpedia_hash = "9d2d75cef573c1c2d861f5197df8f563b05a305d"
        malpedia_version = "20230407"
        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 = { 99 8bc8 0fb745d2 894618 0fafc7 33ca }
            // n = 6, score = 200
            //   99                   | cdq                 
            //   8bc8                 | mov                 ecx, eax
            //   0fb745d2             | movzx               eax, word ptr [ebp - 0x2e]
            //   894618               | mov                 dword ptr [esi + 0x18], eax
            //   0fafc7               | imul                eax, edi
            //   33ca                 | xor                 ecx, edx

        $sequence_1 = { 6a01 ff30 897dfc ff75f0 ff15???????? }
            // n = 5, score = 200
            //   6a01                 | push                1
            //   ff30                 | push                dword ptr [eax]
            //   897dfc               | mov                 dword ptr [ebp - 4], edi
            //   ff75f0               | push                dword ptr [ebp - 0x10]
            //   ff15????????         |                     

        $sequence_2 = { ff15???????? 8d85e8fdffff 50 33db 53 53 }
            // n = 6, score = 200
            //   ff15????????         |                     
            //   8d85e8fdffff         | lea                 eax, [ebp - 0x218]
            //   50                   | push                eax
            //   33db                 | xor                 ebx, ebx
            //   53                   | push                ebx
            //   53                   | push                ebx

        $sequence_3 = { 8b3d???????? 53 53 b919040000 }
            // n = 4, score = 200
            //   8b3d????????         |                     
            //   53                   | push                ebx
            //   53                   | push                ebx
            //   b919040000           | mov                 ecx, 0x419

        $sequence_4 = { eb1f 6816020780 e8???????? e8???????? 8d0c5f }
            // n = 5, score = 200
            //   eb1f                 | jmp                 0x21
            //   6816020780           | push                0x80070216
            //   e8????????           |                     
            //   e8????????           |                     
            //   8d0c5f               | lea                 ecx, [edi + ebx*2]

        $sequence_5 = { 8d45b0 56 50 8bfa c745ac44000000 }
            // n = 5, score = 200
            //   8d45b0               | lea                 eax, [ebp - 0x50]
            //   56                   | push                esi
            //   50                   | push                eax
            //   8bfa                 | mov                 edi, edx
            //   c745ac44000000       | mov                 dword ptr [ebp - 0x54], 0x44

        $sequence_6 = { ff15???????? ff7608 668945ee ff15???????? 8945f0 }
            // n = 5, score = 200
            //   ff15????????         |                     
            //   ff7608               | push                dword ptr [esi + 8]
            //   668945ee             | mov                 word ptr [ebp - 0x12], ax
            //   ff15????????         |                     
            //   8945f0               | mov                 dword ptr [ebp - 0x10], eax

        $sequence_7 = { 50 e8???????? 6a01 57 ff742428 8d9e4c040000 }
            // n = 6, score = 200
            //   50                   | push                eax
            //   e8????????           |                     
            //   6a01                 | push                1
            //   57                   | push                edi
            //   ff742428             | push                dword ptr [esp + 0x28]
            //   8d9e4c040000         | lea                 ebx, [esi + 0x44c]

        $sequence_8 = { 57 68d0070000 ff15???????? 33c0 6806020000 }
            // n = 5, score = 100
            //   57                   | push                edi
            //   68d0070000           | push                0x7d0
            //   ff15????????         |                     
            //   33c0                 | xor                 eax, eax
            //   6806020000           | push                0x206

        $sequence_9 = { 6a00 8d4c2410 51 ff15???????? 8b8c2410020000 }
            // n = 5, score = 100
            //   6a00                 | push                0
            //   8d4c2410             | lea                 ecx, [esp + 0x10]
            //   51                   | push                ecx
            //   ff15????????         |                     
            //   8b8c2410020000       | mov                 ecx, dword ptr [esp + 0x210]

        $sequence_10 = { 51 6689442414 e8???????? 83c40c 6a00 }
            // n = 5, score = 100
            //   51                   | push                ecx
            //   6689442414           | mov                 word ptr [esp + 0x14], ax
            //   e8????????           |                     
            //   83c40c               | add                 esp, 0xc
            //   6a00                 | push                0

        $sequence_11 = { 5e 33cc 33c0 e8???????? 81c40c020000 c21000 3b0d???????? }
            // n = 7, score = 100
            //   5e                   | pop                 esi
            //   33cc                 | xor                 ecx, esp
            //   33c0                 | xor                 eax, eax
            //   e8????????           |                     
            //   81c40c020000         | add                 esp, 0x20c
            //   c21000               | ret                 0x10
            //   3b0d????????         |                     

        $sequence_12 = { 74ee 6804010000 8d54240c 6a00 52 e8???????? }
            // n = 6, score = 100
            //   74ee                 | je                  0xfffffff0
            //   6804010000           | push                0x104
            //   8d54240c             | lea                 edx, [esp + 0xc]
            //   6a00                 | push                0
            //   52                   | push                edx
            //   e8????????           |                     

        $sequence_13 = { 83c40c 6804010000 8d44240c 50 6a00 ff15???????? 6a04 }
            // n = 7, score = 100
            //   83c40c               | add                 esp, 0xc
            //   6804010000           | push                0x104
            //   8d44240c             | lea                 eax, [esp + 0xc]
            //   50                   | push                eax
            //   6a00                 | push                0
            //   ff15????????         |                     
            //   6a04                 | push                4

        $sequence_14 = { ffd6 85c0 7507 ffd7 83f805 }
            // n = 5, score = 100
            //   ffd6                 | call                esi
            //   85c0                 | test                eax, eax
            //   7507                 | jne                 9
            //   ffd7                 | call                edi
            //   83f805               | cmp                 eax, 5

        $sequence_15 = { 33c4 89842408020000 56 57 68d0070000 }
            // n = 5, score = 100
            //   33c4                 | xor                 eax, esp
            //   89842408020000       | mov                 dword ptr [esp + 0x208], eax
            //   56                   | push                esi
            //   57                   | push                edi
            //   68d0070000           | push                0x7d0

    condition:
        7 of them and filesize < 122880
}