rule win_strifewater_rat_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2023-07-11"
        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 = "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 = { 480fbfc2 488d0c00 0fb70419 66413bc0 75e5 664103d2 }
            // n = 6, score = 100
            //   480fbfc2             | mov                 word ptr [ebp + 0x140], si
            //   488d0c00             | jmp                 0x1ba2
            //   0fb70419             | dec                 eax
            //   66413bc0             | mov                 dword ptr [ebp + 0x168], 0xf
            //   75e5                 | dec                 esp
            //   664103d2             | mov                 dword ptr [ebp + 0x160], edi

        $sequence_1 = { 6644393c5a 75f6 85db 0f84cf000000 488b07 488bf5 }
            // n = 6, score = 100
            //   6644393c5a           | dec                 eax
            //   75f6                 | mov                 dword ptr [esp + 0x28], esi
            //   85db                 | dec                 eax
            //   0f84cf000000         | lea                 eax, [0x8e80a]
            //   488b07               | dec                 eax
            //   488bf5               | mov                 dword ptr [esp + 0x20], eax

        $sequence_2 = { 89442448 8d78ff 488d05ccfbf9ff 0fb68cb832b30800 0fb6b4b833b30800 8bd9 48c1e302 }
            // n = 7, score = 100
            //   89442448             | test                eax, eax
            //   8d78ff               | jne                 0x22a
            //   488d05ccfbf9ff       | dec                 eax
            //   0fb68cb832b30800     | lea                 ecx, [0x1c7cc]
            //   0fb6b4b833b30800     | cmp                 si, word ptr [ecx]
            //   8bd9                 | dec                 eax
            //   48c1e302             | mov                 ecx, dword ptr [ebp + 0xa0]

        $sequence_3 = { 488d0535ea0500 488906 eb03 498bf6 4c8b05???????? 4d85c0 }
            // n = 6, score = 100
            //   488d0535ea0500       | dec                 eax
            //   488906               | mov                 dword ptr [ebp + 0x330], eax
            //   eb03                 | dec                 esp
            //   498bf6               | mov                 dword ptr [esp + 0x48], ecx
            //   4c8b05????????       |                     
            //   4d85c0               | dec                 esp

        $sequence_4 = { f20f5cca f2410f590cc1 660f28d1 660f28c1 4c8d0d9ba30100 f20f101d???????? f20f100d???????? }
            // n = 7, score = 100
            //   f20f5cca             | dec                 eax
            //   f2410f590cc1         | lea                 edx, [0x6f3df]
            //   660f28d1             | dec                 eax
            //   660f28c1             | lea                 ecx, [esp + 0x20]
            //   4c8d0d9ba30100       | dec                 eax
            //   f20f101d????????     |                     
            //   f20f100d????????     |                     

        $sequence_5 = { 85c0 0f4ed0 488d4c2430 e8???????? 488d15ece40600 }
            // n = 5, score = 100
            //   85c0                 | mov                 eax, ebx
            //   0f4ed0               | dec                 eax
            //   488d4c2430           | lea                 eax, [ebp - 0x18]
            //   e8????????           |                     
            //   488d15ece40600       | dec                 eax

        $sequence_6 = { 4883ec20 488d05fb800300 488bd9 488901 488d05566d0300 48894110 f6c201 }
            // n = 7, score = 100
            //   4883ec20             | lea                 edx, [0x2a5c1]
            //   488d05fb800300       | dec                 eax
            //   488bd9               | mov                 ebx, eax
            //   488901               | dec                 eax
            //   488d05566d0300       | test                eax, eax
            //   48894110             | mov                 ecx, 4
            //   f6c201               | dec                 esp

        $sequence_7 = { 48897820 4156 4883ec20 458bf1 418bd8 488bfa 4c8d0da3360200 }
            // n = 7, score = 100
            //   48897820             | lea                 ecx, [esp + 0x20]
            //   4156                 | int3                
            //   4883ec20             | dec                 eax
            //   458bf1               | lea                 ecx, [esp + 0x38]
            //   418bd8               | dec                 eax
            //   488bfa               | lea                 edx, [0x56582]
            //   4c8d0da3360200       | dec                 eax

        $sequence_8 = { 488d4c2440 e8???????? cc 488d158b630400 488d4c2440 e8???????? }
            // n = 6, score = 100
            //   488d4c2440           | and                 dword ptr [eax + 8], 0
            //   e8????????           |                     
            //   cc                   | dec                 eax
            //   488d158b630400       | lea                 eax, [0x6a97e]
            //   488d4c2440           | dec                 eax
            //   e8????????           |                     

        $sequence_9 = { 488d5f18 488b07 4889442420 448b4f08 448b4710 488bd3 8b4f38 }
            // n = 7, score = 100
            //   488d5f18             | lea                 ecx, [0x3e2d5]
            //   488b07               | test                byte ptr [ecx + 0x38], 0x20
            //   4889442420           | je                  0x5d5
            //   448b4f08             | xor                 edx, edx
            //   448b4710             | inc                 ecx
            //   488bd3               | mov                 ecx, ecx
            //   8b4f38               | dec                 eax

    condition:
        7 of them and filesize < 1552384
}