rule win_termite_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2023-07-11"
        version = "1"
        description = "Detects win.termite."
        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.termite"
        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 = { e8???????? 8945f0 837df400 7406 837df000 750a b8ffffffff }
            // n = 7, score = 200
            //   e8????????           |                     
            //   8945f0               | mov                 dword ptr [ebp - 0x10], eax
            //   837df400             | cmp                 dword ptr [ebp - 0xc], 0
            //   7406                 | je                  8
            //   837df000             | cmp                 dword ptr [ebp - 0x10], 0
            //   750a                 | jne                 0xc
            //   b8ffffffff           | mov                 eax, 0xffffffff

        $sequence_1 = { 8b4508 8945f0 c745f400000000 c745f400000000 eb10 c70424???????? e8???????? }
            // n = 7, score = 200
            //   8b4508               | mov                 eax, dword ptr [ebp + 8]
            //   8945f0               | mov                 dword ptr [ebp - 0x10], eax
            //   c745f400000000       | mov                 dword ptr [ebp - 0xc], 0
            //   c745f400000000       | mov                 dword ptr [ebp - 0xc], 0
            //   eb10                 | jmp                 0x12
            //   c70424????????       |                     
            //   e8????????           |                     

        $sequence_2 = { 89d8 5b 5e 5f 5d c3 837dc8ff }
            // n = 7, score = 200
            //   89d8                 | mov                 eax, ebx
            //   5b                   | pop                 ebx
            //   5e                   | pop                 esi
            //   5f                   | pop                 edi
            //   5d                   | pop                 ebp
            //   c3                   | ret                 
            //   837dc8ff             | cmp                 dword ptr [ebp - 0x38], -1

        $sequence_3 = { eb0f 8345fc01 837dfc63 7eb3 b8ffffffff c9 c3 }
            // n = 7, score = 200
            //   eb0f                 | jmp                 0x11
            //   8345fc01             | add                 dword ptr [ebp - 4], 1
            //   837dfc63             | cmp                 dword ptr [ebp - 4], 0x63
            //   7eb3                 | jle                 0xffffffb5
            //   b8ffffffff           | mov                 eax, 0xffffffff
            //   c9                   | leave               
            //   c3                   | ret                 

        $sequence_4 = { b800000000 eb03 8b45e4 83c44c 5b 5e }
            // n = 6, score = 200
            //   b800000000           | mov                 eax, 0
            //   eb03                 | jmp                 5
            //   8b45e4               | mov                 eax, dword ptr [ebp - 0x1c]
            //   83c44c               | add                 esp, 0x4c
            //   5b                   | pop                 ebx
            //   5e                   | pop                 esi

        $sequence_5 = { eb19 8b45f4 83c040 8945f0 837df000 7507 b800000000 }
            // n = 7, score = 200
            //   eb19                 | jmp                 0x1b
            //   8b45f4               | mov                 eax, dword ptr [ebp - 0xc]
            //   83c040               | add                 eax, 0x40
            //   8945f0               | mov                 dword ptr [ebp - 0x10], eax
            //   837df000             | cmp                 dword ptr [ebp - 0x10], 0
            //   7507                 | jne                 9
            //   b800000000           | mov                 eax, 0

        $sequence_6 = { e9???????? 8b4508 8b401c 8b5508 83c208 89442404 }
            // n = 6, score = 200
            //   e9????????           |                     
            //   8b4508               | mov                 eax, dword ptr [ebp + 8]
            //   8b401c               | mov                 eax, dword ptr [eax + 0x1c]
            //   8b5508               | mov                 edx, dword ptr [ebp + 8]
            //   83c208               | add                 edx, 8
            //   89442404             | mov                 dword ptr [esp + 4], eax

        $sequence_7 = { c704240a000000 e8???????? 90 c745f401000000 8b4508 890424 e8???????? }
            // n = 7, score = 200
            //   c704240a000000       | mov                 dword ptr [esp], 0xa
            //   e8????????           |                     
            //   90                   | nop                 
            //   c745f401000000       | mov                 dword ptr [ebp - 0xc], 1
            //   8b4508               | mov                 eax, dword ptr [ebp + 8]
            //   890424               | mov                 dword ptr [esp], eax
            //   e8????????           |                     

        $sequence_8 = { 8b4010 8945f0 c745f400000000 eb41 8b450c 89442404 8b45f0 }
            // n = 7, score = 200
            //   8b4010               | mov                 eax, dword ptr [eax + 0x10]
            //   8945f0               | mov                 dword ptr [ebp - 0x10], eax
            //   c745f400000000       | mov                 dword ptr [ebp - 0xc], 0
            //   eb41                 | jmp                 0x43
            //   8b450c               | mov                 eax, dword ptr [ebp + 0xc]
            //   89442404             | mov                 dword ptr [esp + 4], eax
            //   8b45f0               | mov                 eax, dword ptr [ebp - 0x10]

        $sequence_9 = { 8b45f0 89442404 8b4508 890424 e8???????? 8945e8 8b450c }
            // n = 7, score = 200
            //   8b45f0               | mov                 eax, dword ptr [ebp - 0x10]
            //   89442404             | mov                 dword ptr [esp + 4], eax
            //   8b4508               | mov                 eax, dword ptr [ebp + 8]
            //   890424               | mov                 dword ptr [esp], eax
            //   e8????????           |                     
            //   8945e8               | mov                 dword ptr [ebp - 0x18], eax
            //   8b450c               | mov                 eax, dword ptr [ebp + 0xc]

    condition:
        7 of them and filesize < 312320
}