rule win_tempedreve_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-09-17"
        version = "1"
        description = "Detects win.tempedreve."
        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.tempedreve"
        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 = { 011e 015e10 015e0c 0fb75706 }
            // n = 4, score = 300
            //   011e                 | add                 dword ptr [esi], ebx
            //   015e10               | add                 dword ptr [esi + 0x10], ebx
            //   015e0c               | add                 dword ptr [esi + 0xc], ebx
            //   0fb75706             | movzx               edx, word ptr [edi + 6]

        $sequence_1 = { 011a 8b87dc000000 83c204 03c6 }
            // n = 4, score = 300
            //   011a                 | add                 dword ptr [edx], ebx
            //   8b87dc000000         | mov                 eax, dword ptr [edi + 0xdc]
            //   83c204               | add                 edx, 4
            //   03c6                 | add                 eax, esi

        $sequence_2 = { 7563 397e10 755e 8b4638 }
            // n = 4, score = 300
            //   7563                 | jne                 0x65
            //   397e10               | cmp                 dword ptr [esi + 0x10], edi
            //   755e                 | jne                 0x60
            //   8b4638               | mov                 eax, dword ptr [esi + 0x38]

        $sequence_3 = { 0103 a1???????? 83c004 50 ff15???????? }
            // n = 5, score = 300
            //   0103                 | add                 dword ptr [ebx], eax
            //   a1????????           |                     
            //   83c004               | add                 eax, 4
            //   50                   | push                eax
            //   ff15????????         |                     

        $sequence_4 = { 010f 8b07 83c704 3bc1 }
            // n = 4, score = 300
            //   010f                 | add                 dword ptr [edi], ecx
            //   8b07                 | mov                 eax, dword ptr [edi]
            //   83c704               | add                 edi, 4
            //   3bc1                 | cmp                 eax, ecx

        $sequence_5 = { 0104b7 8b8424a8000000 83c704 4d }
            // n = 4, score = 300
            //   0104b7               | add                 dword ptr [edi + esi*4], eax
            //   8b8424a8000000       | mov                 eax, dword ptr [esp + 0xa8]
            //   83c704               | add                 edi, 4
            //   4d                   | dec                 ebp

        $sequence_6 = { 01042f 034c2ff8 8d45ec 894c2ff8 }
            // n = 4, score = 300
            //   01042f               | add                 dword ptr [edi + ebp], eax
            //   034c2ff8             | add                 ecx, dword ptr [edi + ebp - 8]
            //   8d45ec               | lea                 eax, [ebp - 0x14]
            //   894c2ff8             | mov                 dword ptr [edi + ebp - 8], ecx

        $sequence_7 = { 011a 45 8d14a9 8b02 }
            // n = 4, score = 300
            //   011a                 | add                 dword ptr [edx], ebx
            //   45                   | inc                 ebp
            //   8d14a9               | lea                 edx, [ecx + ebp*4]
            //   8b02                 | mov                 eax, dword ptr [edx]

        $sequence_8 = { 01ae14040000 8d5c2bff eb3d 8b5c2458 85ff 7516 8b4c2428 }
            // n = 7, score = 200
            //   01ae14040000         | add                 dword ptr [esi + 0x414], ebp
            //   8d5c2bff             | lea                 ebx, [ebx + ebp - 1]
            //   eb3d                 | jmp                 0x3f
            //   8b5c2458             | mov                 ebx, dword ptr [esp + 0x58]
            //   85ff                 | test                edi, edi
            //   7516                 | jne                 0x18
            //   8b4c2428             | mov                 ecx, dword ptr [esp + 0x28]

        $sequence_9 = { b8eefbeeab 33c9 57 0fb6b90030cb00 }
            // n = 4, score = 200
            //   b8eefbeeab           | mov                 eax, 0xabeefbee
            //   33c9                 | xor                 ecx, ecx
            //   57                   | push                edi
            //   0fb6b90030cb00       | movzx               edi, byte ptr [ecx + 0xcb3000]

        $sequence_10 = { 8d0411 3bc7 7602 8bc7 50 8b442414 8beb }
            // n = 7, score = 200
            //   8d0411               | lea                 eax, [ecx + edx]
            //   3bc7                 | cmp                 eax, edi
            //   7602                 | jbe                 4
            //   8bc7                 | mov                 eax, edi
            //   50                   | push                eax
            //   8b442414             | mov                 eax, dword ptr [esp + 0x14]
            //   8beb                 | mov                 ebp, ebx

        $sequence_11 = { 8b44240c 81ec2c040000 85c0 7509 81c42c040000 }
            // n = 5, score = 200
            //   8b44240c             | mov                 eax, dword ptr [esp + 0xc]
            //   81ec2c040000         | sub                 esp, 0x42c
            //   85c0                 | test                eax, eax
            //   7509                 | jne                 0xb
            //   81c42c040000         | add                 esp, 0x42c

        $sequence_12 = { 7506 43 41 3bda 72f3 8b4c2414 }
            // n = 6, score = 200
            //   7506                 | jne                 8
            //   43                   | inc                 ebx
            //   41                   | inc                 ecx
            //   3bda                 | cmp                 ebx, edx
            //   72f3                 | jb                  0xfffffff5
            //   8b4c2414             | mov                 ecx, dword ptr [esp + 0x14]

        $sequence_13 = { 75ed f7d0 8944241c 61 c20800 60 8b742424 }
            // n = 7, score = 200
            //   75ed                 | jne                 0xffffffef
            //   f7d0                 | not                 eax
            //   8944241c             | mov                 dword ptr [esp + 0x1c], eax
            //   61                   | popal               
            //   c20800               | ret                 8
            //   60                   | pushal              
            //   8b742424             | mov                 esi, dword ptr [esp + 0x24]

        $sequence_14 = { 742e 8b4c2460 8b9610040000 2b542450 }
            // n = 4, score = 200
            //   742e                 | je                  0x30
            //   8b4c2460             | mov                 ecx, dword ptr [esp + 0x60]
            //   8b9610040000         | mov                 edx, dword ptr [esi + 0x410]
            //   2b542450             | sub                 edx, dword ptr [esp + 0x50]

        $sequence_15 = { 85ff 0f84e6000000 3b7c243c 0f85dc000000 8b542454 8bcf 2bcb }
            // n = 7, score = 200
            //   85ff                 | test                edi, edi
            //   0f84e6000000         | je                  0xec
            //   3b7c243c             | cmp                 edi, dword ptr [esp + 0x3c]
            //   0f85dc000000         | jne                 0xe2
            //   8b542454             | mov                 edx, dword ptr [esp + 0x54]
            //   8bcf                 | mov                 ecx, edi
            //   2bcb                 | sub                 ecx, ebx

    condition:
        7 of them and filesize < 155648
}