rule win_lodeinfo_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2023-07-11"
        version = "1"
        description = "Detects win.lodeinfo."
        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.lodeinfo"
        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 = { 8b01 8b4024 ffd0 3b45cc 7557 85d2 7553 }
            // n = 7, score = 200
            //   8b01                 | mov                 eax, dword ptr [ecx]
            //   8b4024               | mov                 eax, dword ptr [eax + 0x24]
            //   ffd0                 | call                eax
            //   3b45cc               | cmp                 eax, dword ptr [ebp - 0x34]
            //   7557                 | jne                 0x59
            //   85d2                 | test                edx, edx
            //   7553                 | jne                 0x55

        $sequence_1 = { c745d000000000 03c7 3bc1 0f825a040000 3b4608 0f8751040000 }
            // n = 6, score = 200
            //   c745d000000000       | mov                 dword ptr [ebp - 0x30], 0
            //   03c7                 | add                 eax, edi
            //   3bc1                 | cmp                 eax, ecx
            //   0f825a040000         | jb                  0x460
            //   3b4608               | cmp                 eax, dword ptr [esi + 8]
            //   0f8751040000         | ja                  0x457

        $sequence_2 = { 03c1 0faf8544ffffff 03f0 8d4703 c1e802 8d8b98000000 898544ffffff }
            // n = 7, score = 200
            //   03c1                 | add                 eax, ecx
            //   0faf8544ffffff       | imul                eax, dword ptr [ebp - 0xbc]
            //   03f0                 | add                 esi, eax
            //   8d4703               | lea                 eax, [edi + 3]
            //   c1e802               | shr                 eax, 2
            //   8d8b98000000         | lea                 ecx, [ebx + 0x98]
            //   898544ffffff         | mov                 dword ptr [ebp - 0xbc], eax

        $sequence_3 = { 50 0fb64702 b9???????? 50 0fb64701 50 0fb607 }
            // n = 7, score = 200
            //   50                   | push                eax
            //   0fb64702             | movzx               eax, byte ptr [edi + 2]
            //   b9????????           |                     
            //   50                   | push                eax
            //   0fb64701             | movzx               eax, byte ptr [edi + 1]
            //   50                   | push                eax
            //   0fb607               | movzx               eax, byte ptr [edi]

        $sequence_4 = { 8bc1 c1e903 83e007 0fafca 0fafc2 83c007 c1e803 }
            // n = 7, score = 200
            //   8bc1                 | mov                 eax, ecx
            //   c1e903               | shr                 ecx, 3
            //   83e007               | and                 eax, 7
            //   0fafca               | imul                ecx, edx
            //   0fafc2               | imul                eax, edx
            //   83c007               | add                 eax, 7
            //   c1e803               | shr                 eax, 3

        $sequence_5 = { 8955e4 81faff000000 7756 8b55f8 8b4308 8b3a 47 }
            // n = 7, score = 200
            //   8955e4               | mov                 dword ptr [ebp - 0x1c], edx
            //   81faff000000         | cmp                 edx, 0xff
            //   7756                 | ja                  0x58
            //   8b55f8               | mov                 edx, dword ptr [ebp - 8]
            //   8b4308               | mov                 eax, dword ptr [ebx + 8]
            //   8b3a                 | mov                 edi, dword ptr [edx]
            //   47                   | inc                 edi

        $sequence_6 = { 8b4d08 8b45ec 3b4514 0f8404010000 8d3c18 894dd8 2955d8 }
            // n = 7, score = 200
            //   8b4d08               | mov                 ecx, dword ptr [ebp + 8]
            //   8b45ec               | mov                 eax, dword ptr [ebp - 0x14]
            //   3b4514               | cmp                 eax, dword ptr [ebp + 0x14]
            //   0f8404010000         | je                  0x10a
            //   8d3c18               | lea                 edi, [eax + ebx]
            //   894dd8               | mov                 dword ptr [ebp - 0x28], ecx
            //   2955d8               | sub                 dword ptr [ebp - 0x28], edx

        $sequence_7 = { 8b55ec 52 e8???????? 83c404 c745f800000000 c745f400000000 ff75f0 }
            // n = 7, score = 200
            //   8b55ec               | mov                 edx, dword ptr [ebp - 0x14]
            //   52                   | push                edx
            //   e8????????           |                     
            //   83c404               | add                 esp, 4
            //   c745f800000000       | mov                 dword ptr [ebp - 8], 0
            //   c745f400000000       | mov                 dword ptr [ebp - 0xc], 0
            //   ff75f0               | push                dword ptr [ebp - 0x10]

        $sequence_8 = { 0fb65204 c1e218 d3e2 0bd3 8b5de4 eb68 c7461000000000 }
            // n = 7, score = 200
            //   0fb65204             | movzx               edx, byte ptr [edx + 4]
            //   c1e218               | shl                 edx, 0x18
            //   d3e2                 | shl                 edx, cl
            //   0bd3                 | or                  edx, ebx
            //   8b5de4               | mov                 ebx, dword ptr [ebp - 0x1c]
            //   eb68                 | jmp                 0x6a
            //   c7461000000000       | mov                 dword ptr [esi + 0x10], 0

        $sequence_9 = { c745c000000000 c745cc00000000 8d0479 c745d000000000 03c7 3bc1 0f825a040000 }
            // n = 7, score = 200
            //   c745c000000000       | mov                 dword ptr [ebp - 0x40], 0
            //   c745cc00000000       | mov                 dword ptr [ebp - 0x34], 0
            //   8d0479               | lea                 eax, [ecx + edi*2]
            //   c745d000000000       | mov                 dword ptr [ebp - 0x30], 0
            //   03c7                 | add                 eax, edi
            //   3bc1                 | cmp                 eax, ecx
            //   0f825a040000         | jb                  0x460

    condition:
        7 of them and filesize < 712704
}