rule win_adkoob_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-09-17"
        version = "1"
        description = "Detects win.adkoob."
        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.adkoob"
        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 = { ff75d0 6a68 5a e8???????? 83c414 8bd6 8b75d4 }
            // n = 7, score = 400
            //   ff75d0               | push                dword ptr [ebp - 0x30]
            //   6a68                 | push                0x68
            //   5a                   | pop                 edx
            //   e8????????           |                     
            //   83c414               | add                 esp, 0x14
            //   8bd6                 | mov                 edx, esi
            //   8b75d4               | mov                 esi, dword ptr [ebp - 0x2c]

        $sequence_1 = { 8b45f8 53 ff75fc 50 6a7e 5a 8bcf }
            // n = 7, score = 400
            //   8b45f8               | mov                 eax, dword ptr [ebp - 8]
            //   53                   | push                ebx
            //   ff75fc               | push                dword ptr [ebp - 4]
            //   50                   | push                eax
            //   6a7e                 | push                0x7e
            //   5a                   | pop                 edx
            //   8bcf                 | mov                 ecx, edi

        $sequence_2 = { e8???????? 5f 5e 8be5 5d c20400 6a2c }
            // n = 7, score = 400
            //   e8????????           |                     
            //   5f                   | pop                 edi
            //   5e                   | pop                 esi
            //   8be5                 | mov                 esp, ebp
            //   5d                   | pop                 ebp
            //   c20400               | ret                 4
            //   6a2c                 | push                0x2c

        $sequence_3 = { 50 56 ff7308 894514 6a60 5a e8???????? }
            // n = 7, score = 400
            //   50                   | push                eax
            //   56                   | push                esi
            //   ff7308               | push                dword ptr [ebx + 8]
            //   894514               | mov                 dword ptr [ebp + 0x14], eax
            //   6a60                 | push                0x60
            //   5a                   | pop                 edx
            //   e8????????           |                     

        $sequence_4 = { 8bd6 8bc8 e8???????? 8bd7 8bc8 e8???????? 8bd6 }
            // n = 7, score = 400
            //   8bd6                 | mov                 edx, esi
            //   8bc8                 | mov                 ecx, eax
            //   e8????????           |                     
            //   8bd7                 | mov                 edx, edi
            //   8bc8                 | mov                 ecx, eax
            //   e8????????           |                     
            //   8bd6                 | mov                 edx, esi

        $sequence_5 = { ff5268 8b442408 c1ee10 56 50 8b08 ff5170 }
            // n = 7, score = 400
            //   ff5268               | call                dword ptr [edx + 0x68]
            //   8b442408             | mov                 eax, dword ptr [esp + 8]
            //   c1ee10               | shr                 esi, 0x10
            //   56                   | push                esi
            //   50                   | push                eax
            //   8b08                 | mov                 ecx, dword ptr [eax]
            //   ff5170               | call                dword ptr [ecx + 0x70]

        $sequence_6 = { 0f84dd000000 803a98 0f85d4000000 8b522c 85d2 0f84c9000000 f6422c10 }
            // n = 7, score = 400
            //   0f84dd000000         | je                  0xe3
            //   803a98               | cmp                 byte ptr [edx], 0x98
            //   0f85d4000000         | jne                 0xda
            //   8b522c               | mov                 edx, dword ptr [edx + 0x2c]
            //   85d2                 | test                edx, edx
            //   0f84c9000000         | je                  0xcf
            //   f6422c10             | test                byte ptr [edx + 0x2c], 0x10

        $sequence_7 = { 8b462c 8945ec 6a00 6a00 50 6a58 5a }
            // n = 7, score = 400
            //   8b462c               | mov                 eax, dword ptr [esi + 0x2c]
            //   8945ec               | mov                 dword ptr [ebp - 0x14], eax
            //   6a00                 | push                0
            //   6a00                 | push                0
            //   50                   | push                eax
            //   6a58                 | push                0x58
            //   5a                   | pop                 edx

        $sequence_8 = { 8b4df8 baeca60000 e8???????? 57 e8???????? 59 8bc6 }
            // n = 7, score = 400
            //   8b4df8               | mov                 ecx, dword ptr [ebp - 8]
            //   baeca60000           | mov                 edx, 0xa6ec
            //   e8????????           |                     
            //   57                   | push                edi
            //   e8????????           |                     
            //   59                   | pop                 ecx
            //   8bc6                 | mov                 eax, esi

        $sequence_9 = { 8945d4 33c0 895dd0 6a08 59 8d7dd8 f3ab }
            // n = 7, score = 400
            //   8945d4               | mov                 dword ptr [ebp - 0x2c], eax
            //   33c0                 | xor                 eax, eax
            //   895dd0               | mov                 dword ptr [ebp - 0x30], ebx
            //   6a08                 | push                8
            //   59                   | pop                 ecx
            //   8d7dd8               | lea                 edi, [ebp - 0x28]
            //   f3ab                 | rep stosd           dword ptr es:[edi], eax

    condition:
        7 of them and filesize < 1867776
}

rule win_adkoob_w0 {
    meta:
        author = "Felix Weyne, Sophos"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.adkoob"
        malpedia_version = "20180606"
        malpedia_license = "CC BY-NC-SA 4.0"
        malpedia_sharing = "TLP:WHITE"
    strings:
        $facebook_cookie_firefox = "SELECT * FROM moz_cookies WHERE moz_cookies.host LIKE \"%.facebook.com\""  nocase ascii
        $facebook_cookie_chrome = "SELECT * FROM cookies WHERE cookies.host_key LIKE \"%.facebook.com\""  nocase ascii
        $facebook_regex_ad_account_id = "<td [^>]*?data-testid=\"all_accounts_table_account_id_cell\">([^<>]*?)</td>"  nocase wide
        $self_destruction = "/C ping localhost -n 4 > nul & del" nocase wide
    condition:
        all of them
}