rule win_project_wood_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-09-17"
        version = "1"
        description = "Detects win.project_wood."
        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.project_wood"
        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 = { 8b75f0 837dfc02 7d08 ff45fc 8b55fc eb02 }
            // n = 6, score = 100
            //   8b75f0               | mov                 esi, dword ptr [ebp - 0x10]
            //   837dfc02             | cmp                 dword ptr [ebp - 4], 2
            //   7d08                 | jge                 0xa
            //   ff45fc               | inc                 dword ptr [ebp - 4]
            //   8b55fc               | mov                 edx, dword ptr [ebp - 4]
            //   eb02                 | jmp                 4

        $sequence_1 = { f3ab 66ab aa 8d8570f5ffff 50 6804010000 }
            // n = 6, score = 100
            //   f3ab                 | rep stosd           dword ptr es:[edi], eax
            //   66ab                 | stosw               word ptr es:[edi], ax
            //   aa                   | stosb               byte ptr es:[edi], al
            //   8d8570f5ffff         | lea                 eax, [ebp - 0xa90]
            //   50                   | push                eax
            //   6804010000           | push                0x104

        $sequence_2 = { 6a00 50 e8???????? 8065f000 83c40c 8d45c0 c645c032 }
            // n = 7, score = 100
            //   6a00                 | push                0
            //   50                   | push                eax
            //   e8????????           |                     
            //   8065f000             | and                 byte ptr [ebp - 0x10], 0
            //   83c40c               | add                 esp, 0xc
            //   8d45c0               | lea                 eax, [ebp - 0x40]
            //   c645c032             | mov                 byte ptr [ebp - 0x40], 0x32

        $sequence_3 = { e8???????? e9???????? 53 57 ff75e8 8d85c4f9ffff }
            // n = 6, score = 100
            //   e8????????           |                     
            //   e9????????           |                     
            //   53                   | push                ebx
            //   57                   | push                edi
            //   ff75e8               | push                dword ptr [ebp - 0x18]
            //   8d85c4f9ffff         | lea                 eax, [ebp - 0x63c]

        $sequence_4 = { 6880000000 50 ff15???????? 8d85bcfeffff 50 ff15???????? 8bf0 }
            // n = 7, score = 100
            //   6880000000           | push                0x80
            //   50                   | push                eax
            //   ff15????????         |                     
            //   8d85bcfeffff         | lea                 eax, [ebp - 0x144]
            //   50                   | push                eax
            //   ff15????????         |                     
            //   8bf0                 | mov                 esi, eax

        $sequence_5 = { be???????? 8d854cfdffff 56 50 e8???????? }
            // n = 5, score = 100
            //   be????????           |                     
            //   8d854cfdffff         | lea                 eax, [ebp - 0x2b4]
            //   56                   | push                esi
            //   50                   | push                eax
            //   e8????????           |                     

        $sequence_6 = { ff15???????? 85c0 0f8589010000 8d4de8 8945ec 51 8d8d2cebffff }
            // n = 7, score = 100
            //   ff15????????         |                     
            //   85c0                 | test                eax, eax
            //   0f8589010000         | jne                 0x18f
            //   8d4de8               | lea                 ecx, [ebp - 0x18]
            //   8945ec               | mov                 dword ptr [ebp - 0x14], eax
            //   51                   | push                ecx
            //   8d8d2cebffff         | lea                 ecx, [ebp - 0x14d4]

        $sequence_7 = { e8???????? 83c41c 84c0 746f 6860ea0000 8d45d8 ff7518 }
            // n = 7, score = 100
            //   e8????????           |                     
            //   83c41c               | add                 esp, 0x1c
            //   84c0                 | test                al, al
            //   746f                 | je                  0x71
            //   6860ea0000           | push                0xea60
            //   8d45d8               | lea                 eax, [ebp - 0x28]
            //   ff7518               | push                dword ptr [ebp + 0x18]

        $sequence_8 = { 57 0f8482000000 b97b010000 33c0 8dbd05f9ffff 837d1008 889d04f9ffff }
            // n = 7, score = 100
            //   57                   | push                edi
            //   0f8482000000         | je                  0x88
            //   b97b010000           | mov                 ecx, 0x17b
            //   33c0                 | xor                 eax, eax
            //   8dbd05f9ffff         | lea                 edi, [ebp - 0x6fb]
            //   837d1008             | cmp                 dword ptr [ebp + 0x10], 8
            //   889d04f9ffff         | mov                 byte ptr [ebp - 0x6fc], bl

        $sequence_9 = { 8975f0 ff7518 895dec ff7514 50 8d45fc 53 }
            // n = 7, score = 100
            //   8975f0               | mov                 dword ptr [ebp - 0x10], esi
            //   ff7518               | push                dword ptr [ebp + 0x18]
            //   895dec               | mov                 dword ptr [ebp - 0x14], ebx
            //   ff7514               | push                dword ptr [ebp + 0x14]
            //   50                   | push                eax
            //   8d45fc               | lea                 eax, [ebp - 4]
            //   53                   | push                ebx

    condition:
        7 of them and filesize < 31137792
}