rule win_glooxmail_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-05-04"
        version = "1"
        description = "Detects win.glooxmail."
        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.glooxmail"
        malpedia_rule_date = "20260422"
        malpedia_hash = "a182e35da64e6d71cb55f125c4d4225196523f14"
        malpedia_version = "20260504"
        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 = { 8d4dc0 e9???????? c3 8d8d3cffffff e9???????? 8d4dc0 e9???????? }
            // n = 7, score = 100
            //   8d4dc0               | lea                 ecx, [ebp - 0x40]
            //   e9????????           |                     
            //   c3                   | ret                 
            //   8d8d3cffffff         | lea                 ecx, [ebp - 0xc4]
            //   e9????????           |                     
            //   8d4dc0               | lea                 ecx, [ebp - 0x40]
            //   e9????????           |                     

        $sequence_1 = { 2500000008 0f8415000000 81a5acf7fffffffffff7 8d8d18fcffff e9???????? c3 }
            // n = 6, score = 100
            //   2500000008           | and                 eax, 0x8000000
            //   0f8415000000         | je                  0x1b
            //   81a5acf7fffffffffff7     | and    dword ptr [ebp - 0x854], 0xf7ffffff
            //   8d8d18fcffff         | lea                 ecx, [ebp - 0x3e8]
            //   e9????????           |                     
            //   c3                   | ret                 

        $sequence_2 = { 6a01 8d8c2450030000 e8???????? 6880000000 e8???????? 59 89442414 }
            // n = 7, score = 100
            //   6a01                 | push                1
            //   8d8c2450030000       | lea                 ecx, [esp + 0x350]
            //   e8????????           |                     
            //   6880000000           | push                0x80
            //   e8????????           |                     
            //   59                   | pop                 ecx
            //   89442414             | mov                 dword ptr [esp + 0x14], eax

        $sequence_3 = { 2500000200 0f8415000000 81a5acf7fffffffffdff 8d8d7cffffff e9???????? c3 8d8df4fdffff }
            // n = 7, score = 100
            //   2500000200           | and                 eax, 0x20000
            //   0f8415000000         | je                  0x1b
            //   81a5acf7fffffffffdff     | and    dword ptr [ebp - 0x854], 0xfffdffff
            //   8d8d7cffffff         | lea                 ecx, [ebp - 0x84]
            //   e9????????           |                     
            //   c3                   | ret                 
            //   8d8df4fdffff         | lea                 ecx, [ebp - 0x20c]

        $sequence_4 = { 7437 6a44 e8???????? 8bf8 59 897c2414 33f6 }
            // n = 7, score = 100
            //   7437                 | je                  0x39
            //   6a44                 | push                0x44
            //   e8????????           |                     
            //   8bf8                 | mov                 edi, eax
            //   59                   | pop                 ecx
            //   897c2414             | mov                 dword ptr [esp + 0x14], edi
            //   33f6                 | xor                 esi, esi

        $sequence_5 = { 8bf0 e8???????? 6a00 57 8d8d00ffffff e8???????? 6a00 }
            // n = 7, score = 100
            //   8bf0                 | mov                 esi, eax
            //   e8????????           |                     
            //   6a00                 | push                0
            //   57                   | push                edi
            //   8d8d00ffffff         | lea                 ecx, [ebp - 0x100]
            //   e8????????           |                     
            //   6a00                 | push                0

        $sequence_6 = { 884573 e8???????? 53 6a01 8d4d38 e8???????? 834dfcff }
            // n = 7, score = 100
            //   884573               | mov                 byte ptr [ebp + 0x73], al
            //   e8????????           |                     
            //   53                   | push                ebx
            //   6a01                 | push                1
            //   8d4d38               | lea                 ecx, [ebp + 0x38]
            //   e8????????           |                     
            //   834dfcff             | or                  dword ptr [ebp - 4], 0xffffffff

        $sequence_7 = { 81ec9c010000 a1???????? 33c5 8945fc 56 8d8568feffff 50 }
            // n = 7, score = 100
            //   81ec9c010000         | sub                 esp, 0x19c
            //   a1????????           |                     
            //   33c5                 | xor                 eax, ebp
            //   8945fc               | mov                 dword ptr [ebp - 4], eax
            //   56                   | push                esi
            //   8d8568feffff         | lea                 eax, [ebp - 0x198]
            //   50                   | push                eax

        $sequence_8 = { c745e001000000 897de4 e8???????? 8365f000 85ff 0f860d010000 be???????? }
            // n = 7, score = 100
            //   c745e001000000       | mov                 dword ptr [ebp - 0x20], 1
            //   897de4               | mov                 dword ptr [ebp - 0x1c], edi
            //   e8????????           |                     
            //   8365f000             | and                 dword ptr [ebp - 0x10], 0
            //   85ff                 | test                edi, edi
            //   0f860d010000         | jbe                 0x113
            //   be????????           |                     

        $sequence_9 = { ffb5b0f7ffff e8???????? 59 c3 8b85acf7ffff 83e010 0f8412000000 }
            // n = 7, score = 100
            //   ffb5b0f7ffff         | push                dword ptr [ebp - 0x850]
            //   e8????????           |                     
            //   59                   | pop                 ecx
            //   c3                   | ret                 
            //   8b85acf7ffff         | mov                 eax, dword ptr [ebp - 0x854]
            //   83e010               | and                 eax, 0x10
            //   0f8412000000         | je                  0x18

    condition:
        7 of them and filesize < 761856
}