rule win_glasses_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-09-17"
        version = "1"
        description = "Detects win.glasses."
        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.glasses"
        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 = { e8???????? 83c404 85c0 7526 8b751c 8b06 8b5014 }
            // n = 7, score = 100
            //   e8????????           |                     
            //   83c404               | add                 esp, 4
            //   85c0                 | test                eax, eax
            //   7526                 | jne                 0x28
            //   8b751c               | mov                 esi, dword ptr [ebp + 0x1c]
            //   8b06                 | mov                 eax, dword ptr [esi]
            //   8b5014               | mov                 edx, dword ptr [eax + 0x14]

        $sequence_1 = { e8???????? 83c404 a3???????? e8???????? a3???????? 85c0 7404 }
            // n = 7, score = 100
            //   e8????????           |                     
            //   83c404               | add                 esp, 4
            //   a3????????           |                     
            //   e8????????           |                     
            //   a3????????           |                     
            //   85c0                 | test                eax, eax
            //   7404                 | je                  6

        $sequence_2 = { e8???????? 8d8d40ffffff c645fc03 e8???????? 8d8d08ffffff c645fc02 e8???????? }
            // n = 7, score = 100
            //   e8????????           |                     
            //   8d8d40ffffff         | lea                 ecx, [ebp - 0xc0]
            //   c645fc03             | mov                 byte ptr [ebp - 4], 3
            //   e8????????           |                     
            //   8d8d08ffffff         | lea                 ecx, [ebp - 0xf8]
            //   c645fc02             | mov                 byte ptr [ebp - 4], 2
            //   e8????????           |                     

        $sequence_3 = { 8b10 ffd2 8b03 6a0a 8bcb 8b5018 ffd2 }
            // n = 7, score = 100
            //   8b10                 | mov                 edx, dword ptr [eax]
            //   ffd2                 | call                edx
            //   8b03                 | mov                 eax, dword ptr [ebx]
            //   6a0a                 | push                0xa
            //   8bcb                 | mov                 ecx, ebx
            //   8b5018               | mov                 edx, dword ptr [eax + 0x18]
            //   ffd2                 | call                edx

        $sequence_4 = { e8???????? 8d8d58ffffff c745fcffffffff e8???????? 8b4df4 64890d00000000 59 }
            // n = 7, score = 100
            //   e8????????           |                     
            //   8d8d58ffffff         | lea                 ecx, [ebp - 0xa8]
            //   c745fcffffffff       | mov                 dword ptr [ebp - 4], 0xffffffff
            //   e8????????           |                     
            //   8b4df4               | mov                 ecx, dword ptr [ebp - 0xc]
            //   64890d00000000       | mov                 dword ptr fs:[0], ecx
            //   59                   | pop                 ecx

        $sequence_5 = { e8???????? 8b8d70ffffff 68???????? e8???????? 8b8d68ffffff 68???????? e8???????? }
            // n = 7, score = 100
            //   e8????????           |                     
            //   8b8d70ffffff         | mov                 ecx, dword ptr [ebp - 0x90]
            //   68????????           |                     
            //   e8????????           |                     
            //   8b8d68ffffff         | mov                 ecx, dword ptr [ebp - 0x98]
            //   68????????           |                     
            //   e8????????           |                     

        $sequence_6 = { 8d4de8 e8???????? 837f3400 c745fc00000000 7525 8d4de8 c745fcffffffff }
            // n = 7, score = 100
            //   8d4de8               | lea                 ecx, [ebp - 0x18]
            //   e8????????           |                     
            //   837f3400             | cmp                 dword ptr [edi + 0x34], 0
            //   c745fc00000000       | mov                 dword ptr [ebp - 4], 0
            //   7525                 | jne                 0x27
            //   8d4de8               | lea                 ecx, [ebp - 0x18]
            //   c745fcffffffff       | mov                 dword ptr [ebp - 4], 0xffffffff

        $sequence_7 = { e9???????? 8d8dd8feffff e9???????? 8d8d40ffffff e9???????? 8d8da0feffff e9???????? }
            // n = 7, score = 100
            //   e9????????           |                     
            //   8d8dd8feffff         | lea                 ecx, [ebp - 0x128]
            //   e9????????           |                     
            //   8d8d40ffffff         | lea                 ecx, [ebp - 0xc0]
            //   e9????????           |                     
            //   8d8da0feffff         | lea                 ecx, [ebp - 0x160]
            //   e9????????           |                     

        $sequence_8 = { e8???????? 8d8ddcfeffff c645fc02 e8???????? 8d8df4fdffff c645fc01 e8???????? }
            // n = 7, score = 100
            //   e8????????           |                     
            //   8d8ddcfeffff         | lea                 ecx, [ebp - 0x124]
            //   c645fc02             | mov                 byte ptr [ebp - 4], 2
            //   e8????????           |                     
            //   8d8df4fdffff         | lea                 ecx, [ebp - 0x20c]
            //   c645fc01             | mov                 byte ptr [ebp - 4], 1
            //   e8????????           |                     

        $sequence_9 = { ff4df8 8945fc 75c4 8b5d08 8b4df4 8906 8d4101 }
            // n = 7, score = 100
            //   ff4df8               | dec                 dword ptr [ebp - 8]
            //   8945fc               | mov                 dword ptr [ebp - 4], eax
            //   75c4                 | jne                 0xffffffc6
            //   8b5d08               | mov                 ebx, dword ptr [ebp + 8]
            //   8b4df4               | mov                 ecx, dword ptr [ebp - 0xc]
            //   8906                 | mov                 dword ptr [esi], eax
            //   8d4101               | lea                 eax, [ecx + 1]

    condition:
        7 of them and filesize < 4177920
}

/*
    This Yara ruleset is under the GNU-GPLv2 license (http://www.gnu.org/licenses/gpl-2.0.html) and open to any user or organization, as    long as you use it under this license.

*/

rule win_glasses_w1 {
    meta:
        description = "Strings used by Glasses"
        author = "Seth Hardy"
        last_modified = "2014-07-22"
        source = "https://github.com/mattulm/sfiles_yara/blob/master/malware/Glasses.yar"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.glasses"
        malpedia_version = "20170517"
        malpedia_license = "CC BY-NC-SA 4.0"
        malpedia_sharing = "TLP:WHITE"
        
    strings:
        $ = "thequickbrownfxjmpsvalzydg"
        $ = "Mozilla/4.0 (compatible; Windows NT 5.1; MSIE 7.0; Trident/4.0; %s.%s)"
        $ = "\" target=\"NewRef\"></a>"
 
    condition:
        all of them

}