rule win_zeoticus_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-09-17"
        version = "1"
        description = "Detects win.zeoticus."
        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.zeoticus"
        malpedia_rule_date = "20260916"
        malpedia_hash = "53a643781c18e08f4a50949af60172d837a0b6f6"
        malpedia_version = "20260917"
        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 = { 660f62ca 660f62f8 660f6e84243c010000 660f62f9 660f6e8c2414010000 660fd4fe 660fd4fc }
            // n = 7, score = 100
            //   660f62ca             | punpckldq           xmm1, xmm2
            //   660f62f8             | punpckldq           xmm7, xmm0
            //   660f6e84243c010000     | movd    xmm0, dword ptr [esp + 0x13c]
            //   660f62f9             | punpckldq           xmm7, xmm1
            //   660f6e8c2414010000     | movd    xmm1, dword ptr [esp + 0x114]
            //   660fd4fe             | paddq               xmm7, xmm6
            //   660fd4fc             | paddq               xmm7, xmm4

        $sequence_1 = { 8b8424b4000000 0384248c000000 898424b4000000 8b8424b8000000 03842490000000 898424b8000000 8b8424bc000000 }
            // n = 7, score = 100
            //   8b8424b4000000       | mov                 eax, dword ptr [esp + 0xb4]
            //   0384248c000000       | add                 eax, dword ptr [esp + 0x8c]
            //   898424b4000000       | mov                 dword ptr [esp + 0xb4], eax
            //   8b8424b8000000       | mov                 eax, dword ptr [esp + 0xb8]
            //   03842490000000       | add                 eax, dword ptr [esp + 0x90]
            //   898424b8000000       | mov                 dword ptr [esp + 0xb8], eax
            //   8b8424bc000000       | mov                 eax, dword ptr [esp + 0xbc]

        $sequence_2 = { e9???????? 80be7111100000 743f 51 8d86c8101000 50 8d96b0101000 }
            // n = 7, score = 100
            //   e9????????           |                     
            //   80be7111100000       | cmp                 byte ptr [esi + 0x101171], 0
            //   743f                 | je                  0x41
            //   51                   | push                ecx
            //   8d86c8101000         | lea                 eax, [esi + 0x1010c8]
            //   50                   | push                eax
            //   8d96b0101000         | lea                 edx, [esi + 0x1010b0]

        $sequence_3 = { b9495c66d3 e8???????? 83c408 a3???????? 8d0c24 6a00 6a00 }
            // n = 7, score = 100
            //   b9495c66d3           | mov                 ecx, 0xd3665c49
            //   e8????????           |                     
            //   83c408               | add                 esp, 8
            //   a3????????           |                     
            //   8d0c24               | lea                 ecx, [esp]
            //   6a00                 | push                0
            //   6a00                 | push                0

        $sequence_4 = { 660fefc8 0f28c5 660ffec3 0f28f0 660f72d013 660f72f60d 660fefb530ffffff }
            // n = 7, score = 100
            //   660fefc8             | pxor                xmm1, xmm0
            //   0f28c5               | movaps              xmm0, xmm5
            //   660ffec3             | paddd               xmm0, xmm3
            //   0f28f0               | movaps              xmm6, xmm0
            //   660f72d013           | psrld               xmm0, 0x13
            //   660f72f60d           | pslld               xmm6, 0xd
            //   660fefb530ffffff     | pxor                xmm6, xmmword ptr [ebp - 0xd0]

        $sequence_5 = { 0f28c1 660fd4442470 0f28ce 660fd4cc 0f29442460 660fefc5 0f294c2420 }
            // n = 7, score = 100
            //   0f28c1               | movaps              xmm0, xmm1
            //   660fd4442470         | paddq               xmm0, xmmword ptr [esp + 0x70]
            //   0f28ce               | movaps              xmm1, xmm6
            //   660fd4cc             | paddq               xmm1, xmm4
            //   0f29442460           | movaps              xmmword ptr [esp + 0x60], xmm0
            //   660fefc5             | pxor                xmm0, xmm5
            //   0f294c2420           | movaps              xmmword ptr [esp + 0x20], xmm1

        $sequence_6 = { 8bf9 687122cb4d 6a15 ba???????? b91dc1b04b e8???????? 83c408 }
            // n = 7, score = 100
            //   8bf9                 | mov                 edi, ecx
            //   687122cb4d           | push                0x4dcb2271
            //   6a15                 | push                0x15
            //   ba????????           |                     
            //   b91dc1b04b           | mov                 ecx, 0x4bb0c11d
            //   e8????????           |                     
            //   83c408               | add                 esp, 8

        $sequence_7 = { 85d2 7407 ffd2 a1???????? 8b4010 8d8d58ffffff 6a20 }
            // n = 7, score = 100
            //   85d2                 | test                edx, edx
            //   7407                 | je                  9
            //   ffd2                 | call                edx
            //   a1????????           |                     
            //   8b4010               | mov                 eax, dword ptr [eax + 0x10]
            //   8d8d58ffffff         | lea                 ecx, [ebp - 0xa8]
            //   6a20                 | push                0x20

        $sequence_8 = { 5b 85c0 7514 c705????????80f44200 e8???????? a1???????? }
            // n = 6, score = 100
            //   5b                   | pop                 ebx
            //   85c0                 | test                eax, eax
            //   7514                 | jne                 0x16
            //   c705????????80f44200     |     
            //   e8????????           |                     
            //   a1????????           |                     

        $sequence_9 = { 5e 8b442428 8b4c240c 8b401c 8d0488 8b0438 }
            // n = 6, score = 100
            //   5e                   | pop                 esi
            //   8b442428             | mov                 eax, dword ptr [esp + 0x28]
            //   8b4c240c             | mov                 ecx, dword ptr [esp + 0xc]
            //   8b401c               | mov                 eax, dword ptr [eax + 0x1c]
            //   8d0488               | lea                 eax, [eax + ecx*4]
            //   8b0438               | mov                 eax, dword ptr [eax + edi]

    condition:
        7 of them and filesize < 468992
}