rule win_globeimposter_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2022-08-05"
        version = "1"
        description = "Detects win.globeimposter."
        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.globeimposter"
        malpedia_rule_date = "20220805"
        malpedia_hash = "6ec06c64bcfdbeda64eff021c766b4ce34542b71"
        malpedia_version = "20220808"
        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 = { 8d4e7c 8b41fc 3b01 8d4914 1bc0 f7d0 23d8 }
            // n = 7, score = 700
            //   8d4e7c               | lea                 ecx, [esi + 0x7c]
            //   8b41fc               | mov                 eax, dword ptr [ecx - 4]
            //   3b01                 | cmp                 eax, dword ptr [ecx]
            //   8d4914               | lea                 ecx, [ecx + 0x14]
            //   1bc0                 | sbb                 eax, eax
            //   f7d0                 | not                 eax
            //   23d8                 | and                 ebx, eax

        $sequence_1 = { c1e810 8bca c1e908 23c7 }
            // n = 4, score = 700
            //   c1e810               | shr                 eax, 0x10
            //   8bca                 | mov                 ecx, edx
            //   c1e908               | shr                 ecx, 8
            //   23c7                 | and                 eax, edi

        $sequence_2 = { 3919 1bdb 0101 f7db 3901 }
            // n = 5, score = 700
            //   3919                 | cmp                 dword ptr [ecx], ebx
            //   1bdb                 | sbb                 ebx, ebx
            //   0101                 | add                 dword ptr [ecx], eax
            //   f7db                 | neg                 ebx
            //   3901                 | cmp                 dword ptr [ecx], eax

        $sequence_3 = { 3b01 8d4914 1bc0 f7d0 }
            // n = 4, score = 700
            //   3b01                 | cmp                 eax, dword ptr [ecx]
            //   8d4914               | lea                 ecx, [ecx + 0x14]
            //   1bc0                 | sbb                 eax, eax
            //   f7d0                 | not                 eax

        $sequence_4 = { 0f73d120 0f6e6614 0ff4e0 0fd4cb 0f6e7618 0ff4f0 }
            // n = 6, score = 700
            //   0f73d120             | psrlq               mm1, 0x20
            //   0f6e6614             | movd                mm4, dword ptr [esi + 0x14]
            //   0ff4e0               | pmuludq             mm4, mm0
            //   0fd4cb               | paddq               mm1, mm3
            //   0f6e7618             | movd                mm6, dword ptr [esi + 0x18]
            //   0ff4f0               | pmuludq             mm6, mm0

        $sequence_5 = { ff15???????? 85c0 7405 3975fc 7405 6afe 58 }
            // n = 7, score = 700
            //   ff15????????         |                     
            //   85c0                 | test                eax, eax
            //   7405                 | je                  7
            //   3975fc               | cmp                 dword ptr [ebp - 4], esi
            //   7405                 | je                  7
            //   6afe                 | push                -2
            //   58                   | pop                 eax

        $sequence_6 = { 8b742434 8bc7 47 3d00010000 }
            // n = 4, score = 700
            //   8b742434             | mov                 esi, dword ptr [esp + 0x34]
            //   8bc7                 | mov                 eax, edi
            //   47                   | inc                 edi
            //   3d00010000           | cmp                 eax, 0x100

        $sequence_7 = { ff7514 85c0 750b ff15???????? }
            // n = 4, score = 700
            //   ff7514               | push                dword ptr [ebp + 0x14]
            //   85c0                 | test                eax, eax
            //   750b                 | jne                 0xd
            //   ff15????????         |                     

        $sequence_8 = { 50 ff742440 e8???????? 83c40c 8bc5 }
            // n = 5, score = 700
            //   50                   | push                eax
            //   ff742440             | push                dword ptr [esp + 0x40]
            //   e8????????           |                     
            //   83c40c               | add                 esp, 0xc
            //   8bc5                 | mov                 eax, ebp

        $sequence_9 = { d1ee 0fafc7 6a02 59 2bc8 0fafd1 }
            // n = 6, score = 700
            //   d1ee                 | shr                 esi, 1
            //   0fafc7               | imul                eax, edi
            //   6a02                 | push                2
            //   59                   | pop                 ecx
            //   2bc8                 | sub                 ecx, eax
            //   0fafd1               | imul                edx, ecx

    condition:
        7 of them and filesize < 327680
}