rule win_tmanger_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2020-12-22"
        version = "1"
        description = "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.tmanger"
        malpedia_rule_date = "20201222"
        malpedia_hash = "30354d830a29f0fbd3714d93d94dea941d77a130"
        malpedia_version = "20201023"
        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 = { 88410a 8d85f8feffff 6800000040 50 ff15???????? 8bf0 83feff }
            // n = 7, score = 100
            //   88410a               | mov                 byte ptr [ecx + 0xa], al
            //   8d85f8feffff         | lea                 eax, [ebp - 0x108]
            //   6800000040           | push                0x40000000
            //   50                   | push                eax
            //   ff15????????         |                     
            //   8bf0                 | mov                 esi, eax
            //   83feff               | cmp                 esi, -1

        $sequence_1 = { 7310 0fb600 8bcf ff45fc d3e0 01450c 83c708 }
            // n = 7, score = 100
            //   7310                 | jae                 0x12
            //   0fb600               | movzx               eax, byte ptr [eax]
            //   8bcf                 | mov                 ecx, edi
            //   ff45fc               | inc                 dword ptr [ebp - 4]
            //   d3e0                 | shl                 eax, cl
            //   01450c               | add                 dword ptr [ebp + 0xc], eax
            //   83c708               | add                 edi, 8

        $sequence_2 = { 7515 3bdf 0f84cf000000 0fb700 8b4d0c 0fb71c41 895df0 }
            // n = 7, score = 100
            //   7515                 | jne                 0x17
            //   3bdf                 | cmp                 ebx, edi
            //   0f84cf000000         | je                  0xd5
            //   0fb700               | movzx               eax, word ptr [eax]
            //   8b4d0c               | mov                 ecx, dword ptr [ebp + 0xc]
            //   0fb71c41             | movzx               ebx, word ptr [ecx + eax*2]
            //   895df0               | mov                 dword ptr [ebp - 0x10], ebx

        $sequence_3 = { 89414c c741044b3f0000 8b414c 8945c8 85c0 7453 3bf0 }
            // n = 7, score = 100
            //   89414c               | mov                 dword ptr [ecx + 0x4c], eax
            //   c741044b3f0000       | mov                 dword ptr [ecx + 4], 0x3f4b
            //   8b414c               | mov                 eax, dword ptr [ecx + 0x4c]
            //   8945c8               | mov                 dword ptr [ebp - 0x38], eax
            //   85c0                 | test                eax, eax
            //   7453                 | je                  0x55
            //   3bf0                 | cmp                 esi, eax

        $sequence_4 = { 03148d405b4600 8b00 894218 8a03 884228 8b45fc 47 }
            // n = 7, score = 100
            //   03148d405b4600       | add                 edx, dword ptr [ecx*4 + 0x465b40]
            //   8b00                 | mov                 eax, dword ptr [eax]
            //   894218               | mov                 dword ptr [edx + 0x18], eax
            //   8a03                 | mov                 al, byte ptr [ebx]
            //   884228               | mov                 byte ptr [edx + 0x28], al
            //   8b45fc               | mov                 eax, dword ptr [ebp - 4]
            //   47                   | inc                 edi

        $sequence_5 = { 1bc0 23c1 83c008 5d c3 8b04c59cb84100 }
            // n = 6, score = 100
            //   1bc0                 | sbb                 eax, eax
            //   23c1                 | and                 eax, ecx
            //   83c008               | add                 eax, 8
            //   5d                   | pop                 ebp
            //   c3                   | ret                 
            //   8b04c59cb84100       | mov                 eax, dword ptr [eax*8 + 0x41b89c]

        $sequence_6 = { 8b4dd0 e8???????? 83c410 85c0 7585 33ff 8b35???????? }
            // n = 7, score = 100
            //   8b4dd0               | mov                 ecx, dword ptr [ebp - 0x30]
            //   e8????????           |                     
            //   83c410               | add                 esp, 0x10
            //   85c0                 | test                eax, eax
            //   7585                 | jne                 0xffffff87
            //   33ff                 | xor                 edi, edi
            //   8b35????????         |                     

        $sequence_7 = { ff75d0 8b35???????? ffd6 50 ff75d0 6a01 57 }
            // n = 7, score = 100
            //   ff75d0               | push                dword ptr [ebp - 0x30]
            //   8b35????????         |                     
            //   ffd6                 | call                esi
            //   50                   | push                eax
            //   ff75d0               | push                dword ptr [ebp - 0x30]
            //   6a01                 | push                1
            //   57                   | push                edi

        $sequence_8 = { 8b75d8 46 03f0 8b7dd0 68???????? ff15???????? }
            // n = 6, score = 100
            //   8b75d8               | mov                 esi, dword ptr [ebp - 0x28]
            //   46                   | inc                 esi
            //   03f0                 | add                 esi, eax
            //   8b7dd0               | mov                 edi, dword ptr [ebp - 0x30]
            //   68????????           |                     
            //   ff15????????         |                     

        $sequence_9 = { 8b5508 53 56 57 8b4a1c 8b4204 8b1a }
            // n = 7, score = 100
            //   8b5508               | mov                 edx, dword ptr [ebp + 8]
            //   53                   | push                ebx
            //   56                   | push                esi
            //   57                   | push                edi
            //   8b4a1c               | mov                 ecx, dword ptr [edx + 0x1c]
            //   8b4204               | mov                 eax, dword ptr [edx + 4]
            //   8b1a                 | mov                 ebx, dword ptr [edx]

    condition:
        7 of them and filesize < 854016
}