rule win_saint_bot_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-09-17"
        version = "1"
        description = "Detects win.saint_bot."
        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.saint_bot"
        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 = { 8bec 81ec14100000 53 56 8b35???????? 57 }
            // n = 6, score = 100
            //   8bec                 | mov                 ebp, esp
            //   81ec14100000         | sub                 esp, 0x1014
            //   53                   | push                ebx
            //   56                   | push                esi
            //   8b35????????         |                     
            //   57                   | push                edi

        $sequence_1 = { 8b3d???????? 8945c4 85c0 0f842f010000 eb0f 8b45fc 85c0 }
            // n = 7, score = 100
            //   8b3d????????         |                     
            //   8945c4               | mov                 dword ptr [ebp - 0x3c], eax
            //   85c0                 | test                eax, eax
            //   0f842f010000         | je                  0x135
            //   eb0f                 | jmp                 0x11
            //   8b45fc               | mov                 eax, dword ptr [ebp - 4]
            //   85c0                 | test                eax, eax

        $sequence_2 = { 8d45c8 50 683f000f00 8d45fc 8975ec 50 }
            // n = 6, score = 100
            //   8d45c8               | lea                 eax, [ebp - 0x38]
            //   50                   | push                eax
            //   683f000f00           | push                0xf003f
            //   8d45fc               | lea                 eax, [ebp - 4]
            //   8975ec               | mov                 dword ptr [ebp - 0x14], esi
            //   50                   | push                eax

        $sequence_3 = { ffd3 8b1d???????? 8bf0 8975f0 85f6 0f849f000000 8b7df4 }
            // n = 7, score = 100
            //   ffd3                 | call                ebx
            //   8b1d????????         |                     
            //   8bf0                 | mov                 esi, eax
            //   8975f0               | mov                 dword ptr [ebp - 0x10], esi
            //   85f6                 | test                esi, esi
            //   0f849f000000         | je                  0xa5
            //   8b7df4               | mov                 edi, dword ptr [ebp - 0xc]

        $sequence_4 = { 3975e4 7c45 68???????? 53 }
            // n = 4, score = 100
            //   3975e4               | cmp                 dword ptr [ebp - 0x1c], esi
            //   7c45                 | jl                  0x47
            //   68????????           |                     
            //   53                   | push                ebx

        $sequence_5 = { 668945ae 58 6a6b 668945b0 58 }
            // n = 5, score = 100
            //   668945ae             | mov                 word ptr [ebp - 0x52], ax
            //   58                   | pop                 eax
            //   6a6b                 | push                0x6b
            //   668945b0             | mov                 word ptr [ebp - 0x50], ax
            //   58                   | pop                 eax

        $sequence_6 = { ffd7 ff75f0 a3???????? 56 ffd7 a3???????? }
            // n = 6, score = 100
            //   ffd7                 | call                edi
            //   ff75f0               | push                dword ptr [ebp - 0x10]
            //   a3????????           |                     
            //   56                   | push                esi
            //   ffd7                 | call                edi
            //   a3????????           |                     

        $sequence_7 = { 8945d8 e8???????? 53 8945dc e8???????? 8bd8 }
            // n = 6, score = 100
            //   8945d8               | mov                 dword ptr [ebp - 0x28], eax
            //   e8????????           |                     
            //   53                   | push                ebx
            //   8945dc               | mov                 dword ptr [ebp - 0x24], eax
            //   e8????????           |                     
            //   8bd8                 | mov                 ebx, eax

        $sequence_8 = { e8???????? 59 59 85c0 741f 6a00 53 }
            // n = 7, score = 100
            //   e8????????           |                     
            //   59                   | pop                 ecx
            //   59                   | pop                 ecx
            //   85c0                 | test                eax, eax
            //   741f                 | je                  0x21
            //   6a00                 | push                0
            //   53                   | push                ebx

        $sequence_9 = { 5b c9 c3 56 6a06 }
            // n = 5, score = 100
            //   5b                   | pop                 ebx
            //   c9                   | leave               
            //   c3                   | ret                 
            //   56                   | push                esi
            //   6a06                 | push                6

    condition:
        7 of them and filesize < 93184
}