rule win_strifewater_rat_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-09-17"
        version = "1"
        description = "Detects win.strifewater_rat."
        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.strifewater_rat"
        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 = { 488bc6 e9???????? 488b01 4c8d2d087ffaff 482b4108 4d8bf7 4899 }
            // n = 7, score = 100
            //   488bc6               | int3                
            //   e9????????           |                     
            //   488b01               | dec                 eax
            //   4c8d2d087ffaff       | lea                 ecx, [0x8aa1c]
            //   482b4108             | int3                
            //   4d8bf7               | dec                 eax
            //   4899                 | lea                 ecx, [0x8a23e]

        $sequence_1 = { 4883ec20 488d05ab340400 488bd9 488901 f6c201 740a }
            // n = 6, score = 100
            //   4883ec20             | dec                 esp
            //   488d05ab340400       | mov                 edi, eax
            //   488bd9               | dec                 eax
            //   488901               | arpl                ax, cx
            //   f6c201               | dec                 ecx
            //   740a                 | lea                 ecx, [esi + ecx*2]

        $sequence_2 = { 48894a08 488d4808 e8???????? 488d0509930600 488903 488bc3 4883c420 }
            // n = 7, score = 100
            //   48894a08             | mov                 dword ptr [ebp + 0x800], 0x650072
            //   488d4808             | mov                 dword ptr [ebp + 0x804], 0x6f0066
            //   e8????????           |                     
            //   488d0509930600       | mov                 dword ptr [ebp + 0x808], 0x200078
            //   488903               | mov                 dword ptr [ebp + 0x80c], 0x650044
            //   488bc3               | mov                 dword ptr [ebp + 0x810], 0x610066
            //   4883c420             | mov                 dword ptr [ebp + 0x814], 0x6c0075

        $sequence_3 = { 33d2 e8???????? 448d6301 488bf8 458bfc 4885c0 7451 }
            // n = 7, score = 100
            //   33d2                 | lea                 ecx, [esp + 0x38]
            //   e8????????           |                     
            //   448d6301             | dec                 eax
            //   488bf8               | lea                 edx, [0x60439]
            //   458bfc               | dec                 esp
            //   4885c0               | cmp                 dword ptr [ebp - 0x70], edi
            //   7451                 | jbe                 0x176

        $sequence_4 = { 418b041e 488d35a1e20a00 3905???????? 7e67 488d0dd6e20a00 }
            // n = 5, score = 100
            //   418b041e             | xor                 eax, eax
            //   488d35a1e20a00       | dec                 eax
            //   3905????????         |                     
            //   7e67                 | lea                 eax, [0x32dad]
            //   488d0dd6e20a00       | dec                 eax

        $sequence_5 = { 488b9290000000 488d0dee740400 e8???????? 488b05???????? 488b88f8000000 48890d???????? 488b08 }
            // n = 7, score = 100
            //   488b9290000000       | dec                 eax
            //   488d0dee740400       | lea                 eax, [0x541a3]
            //   e8????????           |                     
            //   488b05????????       |                     
            //   488b88f8000000       | dec                 eax
            //   48890d????????       |                     
            //   488b08               | mov                 dword ptr [ebx], eax

        $sequence_6 = { 488d158e770700 eb0d 488b5028 4885d2 7504 488d5030 488d4c2428 }
            // n = 7, score = 100
            //   488d158e770700       | inc                 esp
            //   eb0d                 | mov                 dword ptr [esp + 0x34], ebp
            //   488b5028             | inc                 eax
            //   4885d2               | mov                 bh, byte ptr [esp + 0x30]
            //   7504                 | dec                 esp
            //   488d5030             | lea                 ebp, [0x6bfbc]
            //   488d4c2428           | cmp                 byte ptr [esi + 8], 0

        $sequence_7 = { ff15???????? 488bc8 488d15a2ff0300 ff15???????? 4885c0 0f8438030000 }
            // n = 6, score = 100
            //   ff15????????         |                     
            //   488bc8               | dec                 eax
            //   488d15a2ff0300       | lea                 ecx, [edi + 0xa8]
            //   ff15????????         |                     
            //   4885c0               | dec                 eax
            //   0f8438030000         | lea                 eax, [0x84c8f]

        $sequence_8 = { 488d4701 803800 480f4ec7 488bf8 80387f 75c1 4c8b658f }
            // n = 7, score = 100
            //   488d4701             | mov                 al, byte ptr [edx + 8]
            //   803800               | neg                 al
            //   480f4ec7             | dec                 eax
            //   488bf8               | mov                 dword ptr [esp + 0x58], ecx
            //   80387f               | dec                 eax
            //   75c1                 | mov                 dword ptr [esp + 0x70], edx
            //   4c8b658f             | dec                 eax

        $sequence_9 = { 488b4f10 e8???????? 85c0 7407 8bc8 e8???????? 488b5608 }
            // n = 7, score = 100
            //   488b4f10             | lea                 ecx, [ebp + 0x60]
            //   e8????????           |                     
            //   85c0                 | dec                 esp
            //   7407                 | mov                 eax, edi
            //   8bc8                 | dec                 eax
            //   e8????????           |                     
            //   488b5608             | mov                 edx, ebx

    condition:
        7 of them and filesize < 1552384
}