rule win_amadey_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2023-07-11"
        version = "1"
        description = "Detects win.amadey."
        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.amadey"
        malpedia_rule_date = "20230705"
        malpedia_hash = "42d0574f4405bd7d2b154d321d345acb18834a41"
        malpedia_version = "20230715"
        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 = { 8945f4 837df408 744f 8d85e8fdffff 890424 e8???????? c70424???????? }
            // n = 7, score = 700
            //   8945f4               | mov                 dword ptr [ebp - 0xc], eax
            //   837df408             | cmp                 dword ptr [ebp - 0xc], 8
            //   744f                 | je                  0x51
            //   8d85e8fdffff         | lea                 eax, [ebp - 0x218]
            //   890424               | mov                 dword ptr [esp], eax
            //   e8????????           |                     
            //   c70424????????       |                     

        $sequence_1 = { c745fc00000000 e8???????? 84c0 750c c7042401000000 e8???????? e8???????? }
            // n = 7, score = 700
            //   c745fc00000000       | mov                 dword ptr [ebp - 4], 0
            //   e8????????           |                     
            //   84c0                 | test                al, al
            //   750c                 | jne                 0xe
            //   c7042401000000       | mov                 dword ptr [esp], 1
            //   e8????????           |                     
            //   e8????????           |                     

        $sequence_2 = { 89442404 891424 e8???????? 85c0 7510 8b45fc 40 }
            // n = 7, score = 700
            //   89442404             | mov                 dword ptr [esp + 4], eax
            //   891424               | mov                 dword ptr [esp], edx
            //   e8????????           |                     
            //   85c0                 | test                eax, eax
            //   7510                 | jne                 0x12
            //   8b45fc               | mov                 eax, dword ptr [ebp - 4]
            //   40                   | inc                 eax

        $sequence_3 = { 890424 e8???????? c7042400000000 e8???????? 81c424040000 }
            // n = 5, score = 700
            //   890424               | mov                 dword ptr [esp], eax
            //   e8????????           |                     
            //   c7042400000000       | mov                 dword ptr [esp], 0
            //   e8????????           |                     
            //   81c424040000         | add                 esp, 0x424

        $sequence_4 = { e8???????? 8945f4 837df40a 0f842e010000 }
            // n = 4, score = 700
            //   e8????????           |                     
            //   8945f4               | mov                 dword ptr [ebp - 0xc], eax
            //   837df40a             | cmp                 dword ptr [ebp - 0xc], 0xa
            //   0f842e010000         | je                  0x134

        $sequence_5 = { e8???????? c7442404???????? 8b4508 890424 e8???????? 85c0 7e75 }
            // n = 7, score = 700
            //   e8????????           |                     
            //   c7442404????????     |                     
            //   8b4508               | mov                 eax, dword ptr [ebp + 8]
            //   890424               | mov                 dword ptr [esp], eax
            //   e8????????           |                     
            //   85c0                 | test                eax, eax
            //   7e75                 | jle                 0x77

        $sequence_6 = { 890424 e8???????? c7042401000000 e8???????? 89442404 8d85e8fbffff 890424 }
            // n = 7, score = 700
            //   890424               | mov                 dword ptr [esp], eax
            //   e8????????           |                     
            //   c7042401000000       | mov                 dword ptr [esp], 1
            //   e8????????           |                     
            //   89442404             | mov                 dword ptr [esp + 4], eax
            //   8d85e8fbffff         | lea                 eax, [ebp - 0x418]
            //   890424               | mov                 dword ptr [esp], eax

        $sequence_7 = { e8???????? 8b4508 c60000 c9 }
            // n = 4, score = 700
            //   e8????????           |                     
            //   8b4508               | mov                 eax, dword ptr [ebp + 8]
            //   c60000               | mov                 byte ptr [eax], 0
            //   c9                   | leave               

        $sequence_8 = { 68???????? e8???????? 8d4dcc e8???????? 83c418 }
            // n = 5, score = 500
            //   68????????           |                     
            //   e8????????           |                     
            //   8d4dcc               | lea                 ecx, [ebp - 0x34]
            //   e8????????           |                     
            //   83c418               | add                 esp, 0x18

        $sequence_9 = { 83fa10 722f 8b8d78feffff 42 8bc1 81fa00100000 7214 }
            // n = 7, score = 500
            //   83fa10               | cmp                 edx, 0x10
            //   722f                 | jb                  0x31
            //   8b8d78feffff         | mov                 ecx, dword ptr [ebp - 0x188]
            //   42                   | inc                 edx
            //   8bc1                 | mov                 eax, ecx
            //   81fa00100000         | cmp                 edx, 0x1000
            //   7214                 | jb                  0x16

        $sequence_10 = { 52 51 e8???????? 83c408 8b955cfeffff }
            // n = 5, score = 400
            //   52                   | push                edx
            //   51                   | push                ecx
            //   e8????????           |                     
            //   83c408               | add                 esp, 8
            //   8b955cfeffff         | mov                 edx, dword ptr [ebp - 0x1a4]

        $sequence_11 = { 50 68???????? 83ec18 8bcc 68???????? }
            // n = 5, score = 400
            //   50                   | push                eax
            //   68????????           |                     
            //   83ec18               | sub                 esp, 0x18
            //   8bcc                 | mov                 ecx, esp
            //   68????????           |                     

        $sequence_12 = { 8b7dfc 8d4201 3bcb 7ccb 837e1410 }
            // n = 5, score = 400
            //   8b7dfc               | mov                 edi, dword ptr [ebp - 4]
            //   8d4201               | lea                 eax, [edx + 1]
            //   3bcb                 | cmp                 ecx, ebx
            //   7ccb                 | jl                  0xffffffcd
            //   837e1410             | cmp                 dword ptr [esi + 0x14], 0x10

        $sequence_13 = { 83c408 8b554c c7453000000000 c745340f000000 c6452000 83fa10 0f8204ffffff }
            // n = 7, score = 400
            //   83c408               | add                 esp, 8
            //   8b554c               | mov                 edx, dword ptr [ebp + 0x4c]
            //   c7453000000000       | mov                 dword ptr [ebp + 0x30], 0
            //   c745340f000000       | mov                 dword ptr [ebp + 0x34], 0xf
            //   c6452000             | mov                 byte ptr [ebp + 0x20], 0
            //   83fa10               | cmp                 edx, 0x10
            //   0f8204ffffff         | jb                  0xffffff0a

        $sequence_14 = { 68e8030000 ff15???????? 8b551c 83fa10 7228 8b4d08 }
            // n = 6, score = 400
            //   68e8030000           | push                0x3e8
            //   ff15????????         |                     
            //   8b551c               | mov                 edx, dword ptr [ebp + 0x1c]
            //   83fa10               | cmp                 edx, 0x10
            //   7228                 | jb                  0x2a
            //   8b4d08               | mov                 ecx, dword ptr [ebp + 8]

        $sequence_15 = { 83fa10 722f 8b8d60feffff 42 }
            // n = 4, score = 400
            //   83fa10               | cmp                 edx, 0x10
            //   722f                 | jb                  0x31
            //   8b8d60feffff         | mov                 ecx, dword ptr [ebp - 0x1a0]
            //   42                   | inc                 edx

        $sequence_16 = { 68???????? e8???????? 8d4db4 e8???????? 83c418 }
            // n = 5, score = 400
            //   68????????           |                     
            //   e8????????           |                     
            //   8d4db4               | lea                 ecx, [ebp - 0x4c]
            //   e8????????           |                     
            //   83c418               | add                 esp, 0x18

        $sequence_17 = { c78514feffff0f000000 c68500feffff00 83fa10 722f 8b8de8fdffff 42 }
            // n = 6, score = 300
            //   c78514feffff0f000000     | mov    dword ptr [ebp - 0x1ec], 0xf
            //   c68500feffff00       | mov                 byte ptr [ebp - 0x200], 0
            //   83fa10               | cmp                 edx, 0x10
            //   722f                 | jb                  0x31
            //   8b8de8fdffff         | mov                 ecx, dword ptr [ebp - 0x218]
            //   42                   | inc                 edx

        $sequence_18 = { 83c408 8b95fcfdffff c78510feffff00000000 c78514feffff0f000000 c68500feffff00 83fa10 }
            // n = 6, score = 300
            //   83c408               | add                 esp, 8
            //   8b95fcfdffff         | mov                 edx, dword ptr [ebp - 0x204]
            //   c78510feffff00000000     | mov    dword ptr [ebp - 0x1f0], 0
            //   c78514feffff0f000000     | mov    dword ptr [ebp - 0x1ec], 0xf
            //   c68500feffff00       | mov                 byte ptr [ebp - 0x200], 0
            //   83fa10               | cmp                 edx, 0x10

    condition:
        7 of them and filesize < 520192
}