rule win_dimnie_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-09-17"
        version = "1"
        description = "Detects win.dimnie."
        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.dimnie"
        malpedia_rule_date = "20260916"
        malpedia_hash = "53a643781c18e08f4a50949af60172d837a0b6f6"
        malpedia_version = "20260917"
        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 = { 83e10f 8b5508 890a 8b450c 8b08 }
            // n = 5, score = 400
            //   83e10f               | and                 ecx, 0xf
            //   8b5508               | mov                 edx, dword ptr [ebp + 8]
            //   890a                 | mov                 dword ptr [edx], ecx
            //   8b450c               | mov                 eax, dword ptr [ebp + 0xc]
            //   8b08                 | mov                 ecx, dword ptr [eax]

        $sequence_1 = { c70201000000 8b4508 8b08 83e10f 8b5508 }
            // n = 5, score = 400
            //   c70201000000         | mov                 dword ptr [edx], 1
            //   8b4508               | mov                 eax, dword ptr [ebp + 8]
            //   8b08                 | mov                 ecx, dword ptr [eax]
            //   83e10f               | and                 ecx, 0xf
            //   8b5508               | mov                 edx, dword ptr [ebp + 8]

        $sequence_2 = { 8bec 8b4508 c70001000000 8b4d0c }
            // n = 4, score = 400
            //   8bec                 | mov                 ebp, esp
            //   8b4508               | mov                 eax, dword ptr [ebp + 8]
            //   c70001000000         | mov                 dword ptr [eax], 1
            //   8b4d0c               | mov                 ecx, dword ptr [ebp + 0xc]

        $sequence_3 = { c70201000000 8b4508 8b08 83e10f }
            // n = 4, score = 400
            //   c70201000000         | mov                 dword ptr [edx], 1
            //   8b4508               | mov                 eax, dword ptr [ebp + 8]
            //   8b08                 | mov                 ecx, dword ptr [eax]
            //   83e10f               | and                 ecx, 0xf

        $sequence_4 = { 3b4d0c 7605 8b450c eb54 }
            // n = 4, score = 400
            //   3b4d0c               | cmp                 ecx, dword ptr [ebp + 0xc]
            //   7605                 | jbe                 7
            //   8b450c               | mov                 eax, dword ptr [ebp + 0xc]
            //   eb54                 | jmp                 0x56

        $sequence_5 = { 83e10f 8b5508 890a 8b450c }
            // n = 4, score = 400
            //   83e10f               | and                 ecx, 0xf
            //   8b5508               | mov                 edx, dword ptr [ebp + 8]
            //   890a                 | mov                 dword ptr [edx], ecx
            //   8b450c               | mov                 eax, dword ptr [ebp + 0xc]

        $sequence_6 = { c645af3d 8b4d0c 8a55af 885102 }
            // n = 4, score = 400
            //   c645af3d             | mov                 byte ptr [ebp - 0x51], 0x3d
            //   8b4d0c               | mov                 ecx, dword ptr [ebp + 0xc]
            //   8a55af               | mov                 dl, byte ptr [ebp - 0x51]
            //   885102               | mov                 byte ptr [ecx + 2], dl

        $sequence_7 = { 33c0 eb6e 8b4508 3b450c 7505 }
            // n = 5, score = 400
            //   33c0                 | xor                 eax, eax
            //   eb6e                 | jmp                 0x70
            //   8b4508               | mov                 eax, dword ptr [ebp + 8]
            //   3b450c               | cmp                 eax, dword ptr [ebp + 0xc]
            //   7505                 | jne                 7

        $sequence_8 = { 8855ae eb04 c645ae3d 8b450c 8a4dae 884803 }
            // n = 6, score = 400
            //   8855ae               | mov                 byte ptr [ebp - 0x52], dl
            //   eb04                 | jmp                 6
            //   c645ae3d             | mov                 byte ptr [ebp - 0x52], 0x3d
            //   8b450c               | mov                 eax, dword ptr [ebp + 0xc]
            //   8a4dae               | mov                 cl, byte ptr [ebp - 0x52]
            //   884803               | mov                 byte ptr [eax + 3], cl

        $sequence_9 = { 8b5510 c70201000000 8b4508 8b08 83e10f }
            // n = 5, score = 400
            //   8b5510               | mov                 edx, dword ptr [ebp + 0x10]
            //   c70201000000         | mov                 dword ptr [edx], 1
            //   8b4508               | mov                 eax, dword ptr [ebp + 8]
            //   8b08                 | mov                 ecx, dword ptr [eax]
            //   83e10f               | and                 ecx, 0xf

    condition:
        7 of them and filesize < 212992
}