rule win_sysraw_stealer_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-09-17"
        version = "1"
        description = "Detects win.sysraw_stealer."
        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.sysraw_stealer"
        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 = { 8d45b8 894dc0 50 894da0 ff15???????? }
            // n = 5, score = 700
            //   8d45b8               | lea                 eax, [ebp - 0x48]
            //   894dc0               | mov                 dword ptr [ebp - 0x40], ecx
            //   50                   | push                eax
            //   894da0               | mov                 dword ptr [ebp - 0x60], ecx
            //   ff15????????         |                     

        $sequence_1 = { 50 8b4508 8b08 51 8d55c8 }
            // n = 5, score = 700
            //   50                   | push                eax
            //   8b4508               | mov                 eax, dword ptr [ebp + 8]
            //   8b08                 | mov                 ecx, dword ptr [eax]
            //   51                   | push                ecx
            //   8d55c8               | lea                 edx, [ebp - 0x38]

        $sequence_2 = { 89459c 8d855cfeffff 894dbc 8b4dd4 50 8b45c8 8955cc }
            // n = 7, score = 700
            //   89459c               | mov                 dword ptr [ebp - 0x64], eax
            //   8d855cfeffff         | lea                 eax, [ebp - 0x1a4]
            //   894dbc               | mov                 dword ptr [ebp - 0x44], ecx
            //   8b4dd4               | mov                 ecx, dword ptr [ebp - 0x2c]
            //   50                   | push                eax
            //   8b45c8               | mov                 eax, dword ptr [ebp - 0x38]
            //   8955cc               | mov                 dword ptr [ebp - 0x34], edx

        $sequence_3 = { 8945ec eb3e 8b5244 68???????? 8b0402 0fbfd6 }
            // n = 6, score = 700
            //   8945ec               | mov                 dword ptr [ebp - 0x14], eax
            //   eb3e                 | jmp                 0x40
            //   8b5244               | mov                 edx, dword ptr [edx + 0x44]
            //   68????????           |                     
            //   8b0402               | mov                 eax, dword ptr [edx + eax]
            //   0fbfd6               | movsx               edx, si

        $sequence_4 = { 8d8d00ffffff 50 51 6a27 }
            // n = 4, score = 700
            //   8d8d00ffffff         | lea                 ecx, [ebp - 0x100]
            //   50                   | push                eax
            //   51                   | push                ecx
            //   6a27                 | push                0x27

        $sequence_5 = { 894218 8b4590 8b0e 8d955cfeffff 52 8b501c }
            // n = 6, score = 700
            //   894218               | mov                 dword ptr [edx + 0x18], eax
            //   8b4590               | mov                 eax, dword ptr [ebp - 0x70]
            //   8b0e                 | mov                 ecx, dword ptr [esi]
            //   8d955cfeffff         | lea                 edx, [ebp - 0x1a4]
            //   52                   | push                edx
            //   8b501c               | mov                 edx, dword ptr [eax + 0x1c]

        $sequence_6 = { 6a02 ff15???????? 8d45a8 8d4db8 50 51 }
            // n = 6, score = 700
            //   6a02                 | push                2
            //   ff15????????         |                     
            //   8d45a8               | lea                 eax, [ebp - 0x58]
            //   8d4db8               | lea                 ecx, [ebp - 0x48]
            //   50                   | push                eax
            //   51                   | push                ecx

        $sequence_7 = { 8d8d0cffffff 50 8d9510ffffff 51 8d8514ffffff 52 8d8d18ffffff }
            // n = 7, score = 700
            //   8d8d0cffffff         | lea                 ecx, [ebp - 0xf4]
            //   50                   | push                eax
            //   8d9510ffffff         | lea                 edx, [ebp - 0xf0]
            //   51                   | push                ecx
            //   8d8514ffffff         | lea                 eax, [ebp - 0xec]
            //   52                   | push                edx
            //   8d8d18ffffff         | lea                 ecx, [ebp - 0xe8]

        $sequence_8 = { 8d8d0cffffff ffd6 50 ffd3 }
            // n = 4, score = 700
            //   8d8d0cffffff         | lea                 ecx, [ebp - 0xf4]
            //   ffd6                 | call                esi
            //   50                   | push                eax
            //   ffd3                 | call                ebx

        $sequence_9 = { ffd6 50 ffd3 8bd0 8d8d44ffffff ffd6 }
            // n = 6, score = 700
            //   ffd6                 | call                esi
            //   50                   | push                eax
            //   ffd3                 | call                ebx
            //   8bd0                 | mov                 edx, eax
            //   8d8d44ffffff         | lea                 ecx, [ebp - 0xbc]
            //   ffd6                 | call                esi

    condition:
        7 of them and filesize < 1540096
}