rule win_remy_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2023-07-11"
        version = "1"
        description = "Detects win.remy."
        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.remy"
        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 = { 6899010000 8d542460 52 33db 8d442430 899c2418020000 }
            // n = 6, score = 200
            //   6899010000           | push                0x199
            //   8d542460             | lea                 edx, [esp + 0x60]
            //   52                   | push                edx
            //   33db                 | xor                 ebx, ebx
            //   8d442430             | lea                 eax, [esp + 0x30]
            //   899c2418020000       | mov                 dword ptr [esp + 0x218], ebx

        $sequence_1 = { 8d5e0c 7c34 8b10 3b16 752e e8???????? 8945fc }
            // n = 7, score = 200
            //   8d5e0c               | lea                 ebx, [esi + 0xc]
            //   7c34                 | jl                  0x36
            //   8b10                 | mov                 edx, dword ptr [eax]
            //   3b16                 | cmp                 edx, dword ptr [esi]
            //   752e                 | jne                 0x30
            //   e8????????           |                     
            //   8945fc               | mov                 dword ptr [ebp - 4], eax

        $sequence_2 = { c745d84b47f9fb 885ddc 8d4dd4 800127 41 3819 }
            // n = 6, score = 200
            //   c745d84b47f9fb       | mov                 dword ptr [ebp - 0x28], 0xfbf9474b
            //   885ddc               | mov                 byte ptr [ebp - 0x24], bl
            //   8d4dd4               | lea                 ecx, [ebp - 0x2c]
            //   800127               | add                 byte ptr [ecx], 0x27
            //   41                   | inc                 ecx
            //   3819                 | cmp                 byte ptr [ecx], bl

        $sequence_3 = { ff15???????? 85c0 750b ff15???????? 8b4d10 8901 57 }
            // n = 7, score = 200
            //   ff15????????         |                     
            //   85c0                 | test                eax, eax
            //   750b                 | jne                 0xd
            //   ff15????????         |                     
            //   8b4d10               | mov                 ecx, dword ptr [ebp + 0x10]
            //   8901                 | mov                 dword ptr [ecx], eax
            //   57                   | push                edi

        $sequence_4 = { c745fcffffffff 8b7b10 2b7de8 8d459c 57 8bcb e8???????? }
            // n = 7, score = 200
            //   c745fcffffffff       | mov                 dword ptr [ebp - 4], 0xffffffff
            //   8b7b10               | mov                 edi, dword ptr [ebx + 0x10]
            //   2b7de8               | sub                 edi, dword ptr [ebp - 0x18]
            //   8d459c               | lea                 eax, [ebp - 0x64]
            //   57                   | push                edi
            //   8bcb                 | mov                 ecx, ebx
            //   e8????????           |                     

        $sequence_5 = { 2bc1 8902 8d4c3134 898e38100000 895de4 68???????? }
            // n = 6, score = 200
            //   2bc1                 | sub                 eax, ecx
            //   8902                 | mov                 dword ptr [edx], eax
            //   8d4c3134             | lea                 ecx, [ecx + esi + 0x34]
            //   898e38100000         | mov                 dword ptr [esi + 0x1038], ecx
            //   895de4               | mov                 dword ptr [ebp - 0x1c], ebx
            //   68????????           |                     

        $sequence_6 = { e8???????? c645fc01 8b06 50 e8???????? 33db }
            // n = 6, score = 200
            //   e8????????           |                     
            //   c645fc01             | mov                 byte ptr [ebp - 4], 1
            //   8b06                 | mov                 eax, dword ptr [esi]
            //   50                   | push                eax
            //   e8????????           |                     
            //   33db                 | xor                 ebx, ebx

        $sequence_7 = { 8b4c241c 50 51 ff15???????? 85c0 7e08 2bf8 }
            // n = 7, score = 200
            //   8b4c241c             | mov                 ecx, dword ptr [esp + 0x1c]
            //   50                   | push                eax
            //   51                   | push                ecx
            //   ff15????????         |                     
            //   85c0                 | test                eax, eax
            //   7e08                 | jle                 0xa
            //   2bf8                 | sub                 edi, eax

        $sequence_8 = { e8???????? c68424d002000001 8b542420 8b7c2430 56 52 8d842480000000 }
            // n = 7, score = 200
            //   e8????????           |                     
            //   c68424d002000001     | mov                 byte ptr [esp + 0x2d0], 1
            //   8b542420             | mov                 edx, dword ptr [esp + 0x20]
            //   8b7c2430             | mov                 edi, dword ptr [esp + 0x30]
            //   56                   | push                esi
            //   52                   | push                edx
            //   8d842480000000       | lea                 eax, [esp + 0x80]

        $sequence_9 = { ffd3 8d4dd4 51 56 8bf8 ffd3 8d55bc }
            // n = 7, score = 200
            //   ffd3                 | call                ebx
            //   8d4dd4               | lea                 ecx, [ebp - 0x2c]
            //   51                   | push                ecx
            //   56                   | push                esi
            //   8bf8                 | mov                 edi, eax
            //   ffd3                 | call                ebx
            //   8d55bc               | lea                 edx, [ebp - 0x44]

    condition:
        7 of them and filesize < 507904
}