rule win_danabot_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2023-01-25"
        version = "1"
        description = "Detects win.danabot."
        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.danabot"
        malpedia_rule_date = "20230124"
        malpedia_hash = "2ee0eebba83dce3d019a90519f2f972c0fcf9686"
        malpedia_version = "20230125"
        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 = { 8b00 8bd0 4a 8bc6 33c9 e8???????? 33c0 }
            // n = 7, score = 400
            //   8b00                 | mov                 eax, dword ptr [eax]
            //   8bd0                 | mov                 edx, eax
            //   4a                   | dec                 edx
            //   8bc6                 | mov                 eax, esi
            //   33c9                 | xor                 ecx, ecx
            //   e8????????           |                     
            //   33c0                 | xor                 eax, eax

        $sequence_1 = { e8???????? 8b0424 8b13 0110 }
            // n = 4, score = 400
            //   e8????????           |                     
            //   8b0424               | mov                 eax, dword ptr [esp]
            //   8b13                 | mov                 edx, dword ptr [ebx]
            //   0110                 | add                 dword ptr [eax], edx

        $sequence_2 = { 8b44241c 50 6a0b 68fa27a1ea }
            // n = 4, score = 400
            //   8b44241c             | mov                 eax, dword ptr [esp + 0x1c]
            //   50                   | push                eax
            //   6a0b                 | push                0xb
            //   68fa27a1ea           | push                0xeaa127fa

        $sequence_3 = { 6a15 68a111084e 8bc6 8b4d00 8b17 e8???????? 8b4500 }
            // n = 7, score = 400
            //   6a15                 | push                0x15
            //   68a111084e           | push                0x4e0811a1
            //   8bc6                 | mov                 eax, esi
            //   8b4d00               | mov                 ecx, dword ptr [ebp]
            //   8b17                 | mov                 edx, dword ptr [edi]
            //   e8????????           |                     
            //   8b4500               | mov                 eax, dword ptr [ebp]

        $sequence_4 = { 8b16 e8???????? 8b07 50 8b442428 50 6a0a }
            // n = 7, score = 400
            //   8b16                 | mov                 edx, dword ptr [esi]
            //   e8????????           |                     
            //   8b07                 | mov                 eax, dword ptr [edi]
            //   50                   | push                eax
            //   8b442428             | mov                 eax, dword ptr [esp + 0x28]
            //   50                   | push                eax
            //   6a0a                 | push                0xa

        $sequence_5 = { 7e18 8b45fc 50 8b45fc 8b00 b913000000 ba01000000 }
            // n = 7, score = 400
            //   7e18                 | jle                 0x1a
            //   8b45fc               | mov                 eax, dword ptr [ebp - 4]
            //   50                   | push                eax
            //   8b45fc               | mov                 eax, dword ptr [ebp - 4]
            //   8b00                 | mov                 eax, dword ptr [eax]
            //   b913000000           | mov                 ecx, 0x13
            //   ba01000000           | mov                 edx, 1

        $sequence_6 = { 8b03 50 8b442438 50 6a16 68019546fd 8bc6 }
            // n = 7, score = 400
            //   8b03                 | mov                 eax, dword ptr [ebx]
            //   50                   | push                eax
            //   8b442438             | mov                 eax, dword ptr [esp + 0x38]
            //   50                   | push                eax
            //   6a16                 | push                0x16
            //   68019546fd           | push                0xfd469501
            //   8bc6                 | mov                 eax, esi

        $sequence_7 = { ff75f0 68???????? 68???????? 8d45d8 50 }
            // n = 5, score = 400
            //   ff75f0               | push                dword ptr [ebp - 0x10]
            //   68????????           |                     
            //   68????????           |                     
            //   8d45d8               | lea                 eax, [ebp - 0x28]
            //   50                   | push                eax

        $sequence_8 = { 8b0f 8b16 e8???????? 8b07 50 8b442454 50 }
            // n = 7, score = 400
            //   8b0f                 | mov                 ecx, dword ptr [edi]
            //   8b16                 | mov                 edx, dword ptr [esi]
            //   e8????????           |                     
            //   8b07                 | mov                 eax, dword ptr [edi]
            //   50                   | push                eax
            //   8b442454             | mov                 eax, dword ptr [esp + 0x54]
            //   50                   | push                eax

        $sequence_9 = { 56 57 8bf1 8955f8 8945fc 8d45fc }
            // n = 6, score = 400
            //   56                   | push                esi
            //   57                   | push                edi
            //   8bf1                 | mov                 esi, ecx
            //   8955f8               | mov                 dword ptr [ebp - 8], edx
            //   8945fc               | mov                 dword ptr [ebp - 4], eax
            //   8d45fc               | lea                 eax, [ebp - 4]

    condition:
        7 of them and filesize < 237568
}