rule win_slothfulmedia_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-05-04"
        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 = "20260422"
        malpedia_hash = "a182e35da64e6d71cb55f125c4d4225196523f14"
        malpedia_version = "20260504"
        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 = { 56 57 33c0 33ff 6806020000 668985ecfdffff 8d85eefdffff }
            // n = 7, score = 200
            //   56                   | push                esi
            //   57                   | push                edi
            //   33c0                 | xor                 eax, eax
            //   33ff                 | xor                 edi, edi
            //   6806020000           | push                0x206
            //   668985ecfdffff       | mov                 word ptr [ebp - 0x214], ax
            //   8d85eefdffff         | lea                 eax, [ebp - 0x212]

        $sequence_1 = { 89443110 8bc3 5b 5e c9 c3 }
            // n = 6, score = 200
            //   89443110             | mov                 dword ptr [ecx + esi + 0x10], eax
            //   8bc3                 | mov                 eax, ebx
            //   5b                   | pop                 ebx
            //   5e                   | pop                 esi
            //   c9                   | leave               
            //   c3                   | ret                 

        $sequence_2 = { 8b86540e0000 3bc7 7438 57 }
            // n = 4, score = 200
            //   8b86540e0000         | mov                 eax, dword ptr [esi + 0xe54]
            //   3bc7                 | cmp                 eax, edi
            //   7438                 | je                  0x3a
            //   57                   | push                edi

        $sequence_3 = { 8bf8 ff15???????? 56 6a00 50 8945fc e8???????? }
            // n = 7, score = 200
            //   8bf8                 | mov                 edi, eax
            //   ff15????????         |                     
            //   56                   | push                esi
            //   6a00                 | push                0
            //   50                   | push                eax
            //   8945fc               | mov                 dword ptr [ebp - 4], eax
            //   e8????????           |                     

        $sequence_4 = { 8bd8 895df0 3bdf 0f8434020000 }
            // n = 4, score = 200
            //   8bd8                 | mov                 ebx, eax
            //   895df0               | mov                 dword ptr [ebp - 0x10], ebx
            //   3bdf                 | cmp                 ebx, edi
            //   0f8434020000         | je                  0x23a

        $sequence_5 = { 6a07 5a 3bc2 0f8756090000 ff2485ed374000 838de8fdffffff 89b5c4fdffff }
            // n = 7, score = 200
            //   6a07                 | push                7
            //   5a                   | pop                 edx
            //   3bc2                 | cmp                 eax, edx
            //   0f8756090000         | ja                  0x95c
            //   ff2485ed374000       | jmp                 dword ptr [eax*4 + 0x4037ed]
            //   838de8fdffffff       | or                  dword ptr [ebp - 0x218], 0xffffffff
            //   89b5c4fdffff         | mov                 dword ptr [ebp - 0x23c], esi

        $sequence_6 = { 0f84db000000 80bb3802000000 0f85ce000000 ff742410 ff15???????? }
            // n = 5, score = 200
            //   0f84db000000         | je                  0xe1
            //   80bb3802000000       | cmp                 byte ptr [ebx + 0x238], 0
            //   0f85ce000000         | jne                 0xd4
            //   ff742410             | push                dword ptr [esp + 0x10]
            //   ff15????????         |                     

        $sequence_7 = { ff15???????? eb0a 53 8b1b }
            // n = 4, score = 200
            //   ff15????????         |                     
            //   eb0a                 | jmp                 0xc
            //   53                   | push                ebx
            //   8b1b                 | mov                 ebx, dword ptr [ebx]

        $sequence_8 = { 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_9 = { e8???????? 83c40c 6804010000 8d44240c 50 6a00 ff15???????? }
            // n = 7, score = 100
            //   e8????????           |                     
            //   83c40c               | add                 esp, 0xc
            //   6804010000           | push                0x104
            //   8d44240c             | lea                 eax, [esp + 0xc]
            //   50                   | push                eax
            //   6a00                 | push                0
            //   ff15????????         |                     

        $sequence_10 = { 89842408020000 56 57 68d0070000 ff15???????? 33c0 }
            // n = 6, score = 100
            //   89842408020000       | mov                 dword ptr [esp + 0x208], eax
            //   56                   | push                esi
            //   57                   | push                edi
            //   68d0070000           | push                0x7d0
            //   ff15????????         |                     
            //   33c0                 | xor                 eax, eax

        $sequence_11 = { 6a00 8d4c2410 51 ff15???????? 8b8c2410020000 5f }
            // n = 6, score = 100
            //   6a00                 | push                0
            //   8d4c2410             | lea                 ecx, [esp + 0x10]
            //   51                   | push                ecx
            //   ff15????????         |                     
            //   8b8c2410020000       | mov                 ecx, dword ptr [esp + 0x210]
            //   5f                   | pop                 edi

        $sequence_12 = { 6689442414 e8???????? 83c40c 6a00 }
            // n = 4, score = 100
            //   6689442414           | mov                 word ptr [esp + 0x14], ax
            //   e8????????           |                     
            //   83c40c               | add                 esp, 0xc
            //   6a00                 | push                0

        $sequence_13 = { 83f805 74ee 6804010000 8d54240c 6a00 52 e8???????? }
            // n = 7, score = 100
            //   83f805               | cmp                 eax, 5
            //   74ee                 | je                  0xfffffff0
            //   6804010000           | push                0x104
            //   8d54240c             | lea                 edx, [esp + 0xc]
            //   6a00                 | push                0
            //   52                   | push                edx
            //   e8????????           |                     

        $sequence_14 = { 33c0 e8???????? 81c40c020000 c21000 3b0d???????? 7502 }
            // n = 6, score = 100
            //   33c0                 | xor                 eax, eax
            //   e8????????           |                     
            //   81c40c020000         | add                 esp, 0x20c
            //   c21000               | ret                 0x10
            //   3b0d????????         |                     
            //   7502                 | jne                 4

    condition:
        7 of them and filesize < 122880
}