rule win_manitsme_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2023-01-25"
        version = "1"
        description = "Detects win.manitsme."
        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.manitsme"
        malpedia_rule_date = "20230124"
        malpedia_hash = "2ee0eebba83dce3d019a90519f2f972c0fcf9686"
        malpedia_version = "20230125"
        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 = { 8b55fc 83e61f 6bf628 c1fa05 8b149540580110 }
            // n = 5, score = 100
            //   8b55fc               | mov                 edx, dword ptr [ebp - 4]
            //   83e61f               | and                 esi, 0x1f
            //   6bf628               | imul                esi, esi, 0x28
            //   c1fa05               | sar                 edx, 5
            //   8b149540580110       | mov                 edx, dword ptr [edx*4 + 0x10015840]

        $sequence_1 = { 68fc030000 8d4c2420 51 50 ff15???????? 8b7c2410 33c0 }
            // n = 7, score = 100
            //   68fc030000           | push                0x3fc
            //   8d4c2420             | lea                 ecx, [esp + 0x20]
            //   51                   | push                ecx
            //   50                   | push                eax
            //   ff15????????         |                     
            //   8b7c2410             | mov                 edi, dword ptr [esp + 0x10]
            //   33c0                 | xor                 eax, eax

        $sequence_2 = { 33c0 8945e4 3d00010000 7d10 8a8c181d010000 888850330110 }
            // n = 6, score = 100
            //   33c0                 | xor                 eax, eax
            //   8945e4               | mov                 dword ptr [ebp - 0x1c], eax
            //   3d00010000           | cmp                 eax, 0x100
            //   7d10                 | jge                 0x12
            //   8a8c181d010000       | mov                 cl, byte ptr [eax + ebx + 0x11d]
            //   888850330110         | mov                 byte ptr [eax + 0x10013350], cl

        $sequence_3 = { e8???????? 83c404 e8???????? 33d2 b9302a0000 f7f1 69d2e8030000 }
            // n = 7, score = 100
            //   e8????????           |                     
            //   83c404               | add                 esp, 4
            //   e8????????           |                     
            //   33d2                 | xor                 edx, edx
            //   b9302a0000           | mov                 ecx, 0x2a30
            //   f7f1                 | div                 ecx
            //   69d2e8030000         | imul                edx, edx, 0x3e8

        $sequence_4 = { 66c74424180200 ff15???????? 8d542424 52 668944241a ff15???????? 89442418 }
            // n = 7, score = 100
            //   66c74424180200       | mov                 word ptr [esp + 0x18], 2
            //   ff15????????         |                     
            //   8d542424             | lea                 edx, [esp + 0x24]
            //   52                   | push                edx
            //   668944241a           | mov                 word ptr [esp + 0x1a], ax
            //   ff15????????         |                     
            //   89442418             | mov                 dword ptr [esp + 0x18], eax

        $sequence_5 = { 56 57 33f6 33ff 3b1cfdb83b0110 7406 }
            // n = 6, score = 100
            //   56                   | push                esi
            //   57                   | push                edi
            //   33f6                 | xor                 esi, esi
            //   33ff                 | xor                 edi, edi
            //   3b1cfdb83b0110       | cmp                 ebx, dword ptr [edi*8 + 0x10013bb8]
            //   7406                 | je                  8

        $sequence_6 = { ff15???????? a3???????? 5e b801000000 c20c00 6a00 }
            // n = 6, score = 100
            //   ff15????????         |                     
            //   a3????????           |                     
            //   5e                   | pop                 esi
            //   b801000000           | mov                 eax, 1
            //   c20c00               | ret                 0xc
            //   6a00                 | push                0

        $sequence_7 = { 5f 5b c9 c3 6a0a 6a00 ff74240c }
            // n = 7, score = 100
            //   5f                   | pop                 edi
            //   5b                   | pop                 ebx
            //   c9                   | leave               
            //   c3                   | ret                 
            //   6a0a                 | push                0xa
            //   6a00                 | push                0
            //   ff74240c             | push                dword ptr [esp + 0xc]

        $sequence_8 = { 5d c3 56 57 33ff 8db7403e0110 ff36 }
            // n = 7, score = 100
            //   5d                   | pop                 ebp
            //   c3                   | ret                 
            //   56                   | push                esi
            //   57                   | push                edi
            //   33ff                 | xor                 edi, edi
            //   8db7403e0110         | lea                 esi, [edi + 0x10013e40]
            //   ff36                 | push                dword ptr [esi]

        $sequence_9 = { 8bc7 c1f805 8bcf 83e11f 6bc928 8b048540580110 }
            // n = 6, score = 100
            //   8bc7                 | mov                 eax, edi
            //   c1f805               | sar                 eax, 5
            //   8bcf                 | mov                 ecx, edi
            //   83e11f               | and                 ecx, 0x1f
            //   6bc928               | imul                ecx, ecx, 0x28
            //   8b048540580110       | mov                 eax, dword ptr [eax*4 + 0x10015840]

    condition:
        7 of them and filesize < 212992
}