rule win_termite_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2023-01-25"
        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 = "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 = { e8???????? 8b4508 8b550c 895014 b801000000 c9 c3 }
            // n = 7, score = 200
            //   e8????????           |                     
            //   8b4508               | mov                 eax, dword ptr [ebp + 8]
            //   8b550c               | mov                 edx, dword ptr [ebp + 0xc]
            //   895014               | mov                 dword ptr [eax + 0x14], edx
            //   b801000000           | mov                 eax, 1
            //   c9                   | leave               
            //   c3                   | ret                 

        $sequence_1 = { 7406 837d0c00 750c c745f4ffffffff e9???????? 8b450c 83c008 }
            // n = 7, score = 200
            //   7406                 | je                  8
            //   837d0c00             | cmp                 dword ptr [ebp + 0xc], 0
            //   750c                 | jne                 0xe
            //   c745f4ffffffff       | mov                 dword ptr [ebp - 0xc], 0xffffffff
            //   e9????????           |                     
            //   8b450c               | mov                 eax, dword ptr [ebp + 0xc]
            //   83c008               | add                 eax, 8

        $sequence_2 = { 895004 8b4508 8d5008 c744240832000000 8b4514 89442404 891424 }
            // n = 7, score = 200
            //   895004               | mov                 dword ptr [eax + 4], edx
            //   8b4508               | mov                 eax, dword ptr [ebp + 8]
            //   8d5008               | lea                 edx, [eax + 8]
            //   c744240832000000     | mov                 dword ptr [esp + 8], 0x32
            //   8b4514               | mov                 eax, dword ptr [ebp + 0x14]
            //   89442404             | mov                 dword ptr [esp + 4], eax
            //   891424               | mov                 dword ptr [esp], edx

        $sequence_3 = { c7442404???????? 8b45f4 890424 e8???????? c70424???????? e8???????? c744240844000000 }
            // n = 7, score = 200
            //   c7442404????????     |                     
            //   8b45f4               | mov                 eax, dword ptr [ebp - 0xc]
            //   890424               | mov                 dword ptr [esp], eax
            //   e8????????           |                     
            //   c70424????????       |                     
            //   e8????????           |                     
            //   c744240844000000     | mov                 dword ptr [esp + 8], 0x44

        $sequence_4 = { 7404 3c2b 7507 8b7d14 0fb64701 }
            // n = 5, score = 200
            //   7404                 | je                  6
            //   3c2b                 | cmp                 al, 0x2b
            //   7507                 | jne                 9
            //   8b7d14               | mov                 edi, dword ptr [ebp + 0x14]
            //   0fb64701             | movzx               eax, byte ptr [edi + 1]

        $sequence_5 = { c70424???????? e8???????? c704240a000000 e8???????? b8ffffffff eb7a 8b45ec }
            // n = 7, score = 200
            //   c70424????????       |                     
            //   e8????????           |                     
            //   c704240a000000       | mov                 dword ptr [esp], 0xa
            //   e8????????           |                     
            //   b8ffffffff           | mov                 eax, 0xffffffff
            //   eb7a                 | jmp                 0x7c
            //   8b45ec               | mov                 eax, dword ptr [ebp - 0x14]

        $sequence_6 = { 83ec18 8b450c 89442404 8b4508 890424 e8???????? 83f8ff }
            // n = 7, score = 200
            //   83ec18               | sub                 esp, 0x18
            //   8b450c               | mov                 eax, dword ptr [ebp + 0xc]
            //   89442404             | mov                 dword ptr [esp + 4], eax
            //   8b4508               | mov                 eax, dword ptr [ebp + 8]
            //   890424               | mov                 dword ptr [esp], eax
            //   e8????????           |                     
            //   83f8ff               | cmp                 eax, -1

        $sequence_7 = { 55 89e5 57 56 53 83ec2c c745e001000000 }
            // n = 7, score = 200
            //   55                   | push                ebp
            //   89e5                 | mov                 ebp, esp
            //   57                   | push                edi
            //   56                   | push                esi
            //   53                   | push                ebx
            //   83ec2c               | sub                 esp, 0x2c
            //   c745e001000000       | mov                 dword ptr [ebp - 0x20], 1

        $sequence_8 = { 8d45dc 890424 e8???????? c744240804000000 8d45d8 89442404 8b4510 }
            // n = 7, score = 200
            //   8d45dc               | lea                 eax, [ebp - 0x24]
            //   890424               | mov                 dword ptr [esp], eax
            //   e8????????           |                     
            //   c744240804000000     | mov                 dword ptr [esp + 8], 4
            //   8d45d8               | lea                 eax, [ebp - 0x28]
            //   89442404             | mov                 dword ptr [esp + 4], eax
            //   8b4510               | mov                 eax, dword ptr [ebp + 0x10]

        $sequence_9 = { 89e5 83ec28 c745f400000000 8b4508 8b00 85c0 }
            // n = 6, score = 200
            //   89e5                 | mov                 ebp, esp
            //   83ec28               | sub                 esp, 0x28
            //   c745f400000000       | mov                 dword ptr [ebp - 0xc], 0
            //   8b4508               | mov                 eax, dword ptr [ebp + 8]
            //   8b00                 | mov                 eax, dword ptr [eax]
            //   85c0                 | test                eax, eax

    condition:
        7 of them and filesize < 312320
}