rule win_babylon_rat_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-09-17"
        version = "1"
        description = "Detects win.babylon_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.babylon_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 = { 83ec10 57 8b7d08 ff37 e8???????? 59 85c0 }
            // n = 7, score = 100
            //   83ec10               | sub                 esp, 0x10
            //   57                   | push                edi
            //   8b7d08               | mov                 edi, dword ptr [ebp + 8]
            //   ff37                 | push                dword ptr [edi]
            //   e8????????           |                     
            //   59                   | pop                 ecx
            //   85c0                 | test                eax, eax

        $sequence_1 = { ff7518 ff7514 ff7510 ff30 ff15???????? eb32 57 }
            // n = 7, score = 100
            //   ff7518               | push                dword ptr [ebp + 0x18]
            //   ff7514               | push                dword ptr [ebp + 0x14]
            //   ff7510               | push                dword ptr [ebp + 0x10]
            //   ff30                 | push                dword ptr [eax]
            //   ff15????????         |                     
            //   eb32                 | jmp                 0x34
            //   57                   | push                edi

        $sequence_2 = { ff75b4 53 e8???????? 83c43c eb20 ff75c8 85c9 }
            // n = 7, score = 100
            //   ff75b4               | push                dword ptr [ebp - 0x4c]
            //   53                   | push                ebx
            //   e8????????           |                     
            //   83c43c               | add                 esp, 0x3c
            //   eb20                 | jmp                 0x22
            //   ff75c8               | push                dword ptr [ebp - 0x38]
            //   85c9                 | test                ecx, ecx

        $sequence_3 = { eb0f 8d4508 50 53 e8???????? 8b7508 59 }
            // n = 7, score = 100
            //   eb0f                 | jmp                 0x11
            //   8d4508               | lea                 eax, [ebp + 8]
            //   50                   | push                eax
            //   53                   | push                ebx
            //   e8????????           |                     
            //   8b7508               | mov                 esi, dword ptr [ebp + 8]
            //   59                   | pop                 ecx

        $sequence_4 = { e8???????? 68???????? ebc9 55 8bec 53 8b5d10 }
            // n = 7, score = 100
            //   e8????????           |                     
            //   68????????           |                     
            //   ebc9                 | jmp                 0xffffffcb
            //   55                   | push                ebp
            //   8bec                 | mov                 ebp, esp
            //   53                   | push                ebx
            //   8b5d10               | mov                 ebx, dword ptr [ebp + 0x10]

        $sequence_5 = { ff75fc ff7020 56 e8???????? 83c41c 8bd8 eb08 }
            // n = 7, score = 100
            //   ff75fc               | push                dword ptr [ebp - 4]
            //   ff7020               | push                dword ptr [eax + 0x20]
            //   56                   | push                esi
            //   e8????????           |                     
            //   83c41c               | add                 esp, 0x1c
            //   8bd8                 | mov                 ebx, eax
            //   eb08                 | jmp                 0xa

        $sequence_6 = { ff15???????? 53 894508 ff15???????? 8bf8 59 59 }
            // n = 7, score = 100
            //   ff15????????         |                     
            //   53                   | push                ebx
            //   894508               | mov                 dword ptr [ebp + 8], eax
            //   ff15????????         |                     
            //   8bf8                 | mov                 edi, eax
            //   59                   | pop                 ecx
            //   59                   | pop                 ecx

        $sequence_7 = { 8d85f0fbffff 50 e8???????? bf???????? 57 e8???????? 59 }
            // n = 7, score = 100
            //   8d85f0fbffff         | lea                 eax, [ebp - 0x410]
            //   50                   | push                eax
            //   e8????????           |                     
            //   bf????????           |                     
            //   57                   | push                edi
            //   e8????????           |                     
            //   59                   | pop                 ecx

        $sequence_8 = { ff4df0 7598 8b7508 8b45e4 83f801 7549 85c9 }
            // n = 7, score = 100
            //   ff4df0               | dec                 dword ptr [ebp - 0x10]
            //   7598                 | jne                 0xffffff9a
            //   8b7508               | mov                 esi, dword ptr [ebp + 8]
            //   8b45e4               | mov                 eax, dword ptr [ebp - 0x1c]
            //   83f801               | cmp                 eax, 1
            //   7549                 | jne                 0x4b
            //   85c9                 | test                ecx, ecx

        $sequence_9 = { 894da8 8b79fc 85ff 7507 bf???????? eb16 80fa07 }
            // n = 7, score = 100
            //   894da8               | mov                 dword ptr [ebp - 0x58], ecx
            //   8b79fc               | mov                 edi, dword ptr [ecx - 4]
            //   85ff                 | test                edi, edi
            //   7507                 | jne                 9
            //   bf????????           |                     
            //   eb16                 | jmp                 0x18
            //   80fa07               | cmp                 dl, 7

    condition:
        7 of them and filesize < 1604608
}