rule win_danabot_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2023-07-11"
        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 = "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 = { 8b4500 50 8b44241c 50 6a06 }
            // n = 5, score = 400
            //   8b4500               | mov                 eax, dword ptr [ebp]
            //   50                   | push                eax
            //   8b44241c             | mov                 eax, dword ptr [esp + 0x1c]
            //   50                   | push                eax
            //   6a06                 | push                6

        $sequence_1 = { 6a01 53 ff15???????? 85c0 0f84ed000000 }
            // n = 5, score = 400
            //   6a01                 | push                1
            //   53                   | push                ebx
            //   ff15????????         |                     
            //   85c0                 | test                eax, eax
            //   0f84ed000000         | je                  0xf3

        $sequence_2 = { 50 8b442428 50 6a0e 68870dd5f4 8bc7 }
            // n = 6, score = 400
            //   50                   | push                eax
            //   8b442428             | mov                 eax, dword ptr [esp + 0x28]
            //   50                   | push                eax
            //   6a0e                 | push                0xe
            //   68870dd5f4           | push                0xf4d50d87
            //   8bc7                 | mov                 eax, edi

        $sequence_3 = { e8???????? 85c0 0f84adfbffff c3 85d2 }
            // n = 5, score = 400
            //   e8????????           |                     
            //   85c0                 | test                eax, eax
            //   0f84adfbffff         | je                  0xfffffbb3
            //   c3                   | ret                 
            //   85d2                 | test                edx, edx

        $sequence_4 = { 8bd9 85db 780a c1eb02 8b349a 4b 56 }
            // n = 7, score = 400
            //   8bd9                 | mov                 ebx, ecx
            //   85db                 | test                ebx, ebx
            //   780a                 | js                  0xc
            //   c1eb02               | shr                 ebx, 2
            //   8b349a               | mov                 esi, dword ptr [edx + ebx*4]
            //   4b                   | dec                 ebx
            //   56                   | push                esi

        $sequence_5 = { 68f87ca21f 8bc7 8b0b 8b5500 e8???????? 8b03 }
            // n = 6, score = 400
            //   68f87ca21f           | push                0x1fa27cf8
            //   8bc7                 | mov                 eax, edi
            //   8b0b                 | mov                 ecx, dword ptr [ebx]
            //   8b5500               | mov                 edx, dword ptr [ebp]
            //   e8????????           |                     
            //   8b03                 | mov                 eax, dword ptr [ebx]

        $sequence_6 = { 3b85d0feffff 7452 8b85d0feffff 50 6a00 }
            // n = 5, score = 400
            //   3b85d0feffff         | cmp                 eax, dword ptr [ebp - 0x130]
            //   7452                 | je                  0x54
            //   8b85d0feffff         | mov                 eax, dword ptr [ebp - 0x130]
            //   50                   | push                eax
            //   6a00                 | push                0

        $sequence_7 = { 8b55f4 8d45f8 e8???????? 8b55f8 8bc7 }
            // n = 5, score = 400
            //   8b55f4               | mov                 edx, dword ptr [ebp - 0xc]
            //   8d45f8               | lea                 eax, [ebp - 8]
            //   e8????????           |                     
            //   8b55f8               | mov                 edx, dword ptr [ebp - 8]
            //   8bc7                 | mov                 eax, edi

        $sequence_8 = { 6a01 ff15???????? 85c0 743b 8b45f0 50 }
            // n = 6, score = 400
            //   6a01                 | push                1
            //   ff15????????         |                     
            //   85c0                 | test                eax, eax
            //   743b                 | je                  0x3d
            //   8b45f0               | mov                 eax, dword ptr [ebp - 0x10]
            //   50                   | push                eax

        $sequence_9 = { 8bde 85db 7405 83eb04 }
            // n = 4, score = 400
            //   8bde                 | mov                 ebx, esi
            //   85db                 | test                ebx, ebx
            //   7405                 | je                  7
            //   83eb04               | sub                 ebx, 4

    condition:
        7 of them and filesize < 237568
}