rule win_parasite_http_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2023-07-11"
        version = "1"
        description = "Detects win.parasite_http."
        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.parasite_http"
        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 = { ebea 55 8bec 83ec0c ba0b010000 53 56 }
            // n = 7, score = 100
            //   ebea                 | jmp                 0xffffffec
            //   55                   | push                ebp
            //   8bec                 | mov                 ebp, esp
            //   83ec0c               | sub                 esp, 0xc
            //   ba0b010000           | mov                 edx, 0x10b
            //   53                   | push                ebx
            //   56                   | push                esi

        $sequence_1 = { 59 8b4dfc e8???????? 8b4df8 e8???????? }
            // n = 5, score = 100
            //   59                   | pop                 ecx
            //   8b4dfc               | mov                 ecx, dword ptr [ebp - 4]
            //   e8????????           |                     
            //   8b4df8               | mov                 ecx, dword ptr [ebp - 8]
            //   e8????????           |                     

        $sequence_2 = { 0f843f020000 833d????????00 0f8430010000 50 33c0 0f9bc0 52 }
            // n = 7, score = 100
            //   0f843f020000         | je                  0x245
            //   833d????????00       |                     
            //   0f8430010000         | je                  0x136
            //   50                   | push                eax
            //   33c0                 | xor                 eax, eax
            //   0f9bc0               | setnp               al
            //   52                   | push                edx

        $sequence_3 = { 59 03c0 50 8d85f0fbffff 50 53 e8???????? }
            // n = 7, score = 100
            //   59                   | pop                 ecx
            //   03c0                 | add                 eax, eax
            //   50                   | push                eax
            //   8d85f0fbffff         | lea                 eax, [ebp - 0x410]
            //   50                   | push                eax
            //   53                   | push                ebx
            //   e8????????           |                     

        $sequence_4 = { 41 8a840d00ffffff 30043e 46 3b750c 7291 }
            // n = 6, score = 100
            //   41                   | inc                 ecx
            //   8a840d00ffffff       | mov                 al, byte ptr [ebp + ecx - 0x100]
            //   30043e               | xor                 byte ptr [esi + edi], al
            //   46                   | inc                 esi
            //   3b750c               | cmp                 esi, dword ptr [ebp + 0xc]
            //   7291                 | jb                  0xffffff93

        $sequence_5 = { 7405 e8???????? 8b4de8 5f 85c9 7405 e8???????? }
            // n = 7, score = 100
            //   7405                 | je                  7
            //   e8????????           |                     
            //   8b4de8               | mov                 ecx, dword ptr [ebp - 0x18]
            //   5f                   | pop                 edi
            //   85c9                 | test                ecx, ecx
            //   7405                 | je                  7
            //   e8????????           |                     

        $sequence_6 = { d1e0 8bd0 8b4dfc e8???????? 59 }
            // n = 5, score = 100
            //   d1e0                 | shl                 eax, 1
            //   8bd0                 | mov                 edx, eax
            //   8b4dfc               | mov                 ecx, dword ptr [ebp - 4]
            //   e8????????           |                     
            //   59                   | pop                 ecx

        $sequence_7 = { e8???????? 85c0 743e 6a00 6a00 33d2 }
            // n = 6, score = 100
            //   e8????????           |                     
            //   85c0                 | test                eax, eax
            //   743e                 | je                  0x40
            //   6a00                 | push                0
            //   6a00                 | push                0
            //   33d2                 | xor                 edx, edx

        $sequence_8 = { 0fb7c8 5f 0fb7c6 5e 2bc1 5b c3 }
            // n = 7, score = 100
            //   0fb7c8               | movzx               ecx, ax
            //   5f                   | pop                 edi
            //   0fb7c6               | movzx               eax, si
            //   5e                   | pop                 esi
            //   2bc1                 | sub                 eax, ecx
            //   5b                   | pop                 ebx
            //   c3                   | ret                 

        $sequence_9 = { e8???????? 8bc8 e8???????? 33c9 a3???????? 85c0 0f95c1 }
            // n = 7, score = 100
            //   e8????????           |                     
            //   8bc8                 | mov                 ecx, eax
            //   e8????????           |                     
            //   33c9                 | xor                 ecx, ecx
            //   a3????????           |                     
            //   85c0                 | test                eax, eax
            //   0f95c1               | setne               cl

    condition:
        7 of them and filesize < 147456
}