SYMBOLCOMMON_NAMEaka. SYNONYMS
win.mykings_spreader (Back to overview)

MyKings Spreader


There is no description at this point.

References
2021-10-12AvastJan Rubín, Jakub Kaloč
@online{rubn:20211012:king:068a3d8, author = {Jan Rubín and Jakub Kaloč}, title = {{The King is Dead, Long Live MyKings! (Part 1 of 2)}}, date = {2021-10-12}, organization = {Avast}, url = {https://decoded.avast.io/janrubin/the-king-is-dead-long-live-mykings/}, language = {English}, urldate = {2021-10-25} } The King is Dead, Long Live MyKings! (Part 1 of 2)
MyKings Spreader
2020-07-01Cisco TalosNick Biasini, Edmund Brumaghin, Mariano Graziano
@online{biasini:20200701:threat:a726b7e, author = {Nick Biasini and Edmund Brumaghin and Mariano Graziano}, title = {{Threat Spotlight: Valak Slithers Its Way Into Manufacturing and Transportation Networks}}, date = {2020-07-01}, organization = {Cisco Talos}, url = {https://blog.talosintelligence.com/2020/07/valak-emerges.html}, language = {English}, urldate = {2020-08-18} } Threat Spotlight: Valak Slithers Its Way Into Manufacturing and Transportation Networks
Valak IcedID ISFB MyKings Spreader
2020-03-02AhnLabAhnLab
@techreport{ahnlab:20200302:analysis:c0c47c3, author = {AhnLab}, title = {{Analysis Report: MyKings Botnet}}, date = {2020-03-02}, institution = {AhnLab}, url = {http://download.ahnlab.com/kr/site/library/[AhnLab]Analysis%20Report_MyKings%20Botnet.pdf}, language = {Korean}, urldate = {2020-03-04} } Analysis Report: MyKings Botnet
MyKings Spreader
2019-12-18SophosGabor Szappanos
@techreport{szappanos:20191218:mykings:7370b35, author = {Gabor Szappanos}, title = {{MyKings: The slow but steady growth of a relentless botnet}}, date = {2019-12-18}, institution = {Sophos}, url = {https://sophos.files.wordpress.com/2019/12/mykings_report_final.pdf}, language = {English}, urldate = {2020-01-13} } MyKings: The slow but steady growth of a relentless botnet
MyKings Spreader
2018-01-31ProofpointKafeine
@online{kafeine:20180131:smominru:5a6c554, author = {Kafeine}, title = {{Smominru Monero mining botnet making millions for operators}}, date = {2018-01-31}, organization = {Proofpoint}, url = {https://www.proofpoint.com/us/threat-insight/post/smominru-monero-mining-botnet-making-millions-operators}, language = {English}, urldate = {2019-12-20} } Smominru Monero mining botnet making millions for operators
MyKings Spreader Smominru
2018-01-24JiaYu
@online{jiayu:20180124:mykings:63bef87, author = {JiaYu}, title = {{MyKings: A massively multiple botnet}}, date = {2018-01-24}, url = {http://blog.netlab.360.com/mykings-the-botnet-behind-multiple-active-spreading-botnets/}, language = {Chinese}, urldate = {2019-11-20} } MyKings: A massively multiple botnet
MyKings Spreader Smominru
Yara Rules
[TLP:WHITE] win_mykings_spreader_auto (20230715 | Detects win.mykings_spreader.)
rule win_mykings_spreader_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2023-07-11"
        version = "1"
        description = "Detects win.mykings_spreader."
        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.mykings_spreader"
        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 = { 8811 897904 897908 89790c 8b15???????? 52 }
            // n = 6, score = 100
            //   8811                 | mov                 byte ptr [ecx], dl
            //   897904               | mov                 dword ptr [ecx + 4], edi
            //   897908               | mov                 dword ptr [ecx + 8], edi
            //   89790c               | mov                 dword ptr [ecx + 0xc], edi
            //   8b15????????         |                     
            //   52                   | push                edx

        $sequence_1 = { 8b4dcc 2b4dc8 894dcc d1e9 894dc4 d1e1 894d88 }
            // n = 7, score = 100
            //   8b4dcc               | mov                 ecx, dword ptr [ebp - 0x34]
            //   2b4dc8               | sub                 ecx, dword ptr [ebp - 0x38]
            //   894dcc               | mov                 dword ptr [ebp - 0x34], ecx
            //   d1e9                 | shr                 ecx, 1
            //   894dc4               | mov                 dword ptr [ebp - 0x3c], ecx
            //   d1e1                 | shl                 ecx, 1
            //   894d88               | mov                 dword ptr [ebp - 0x78], ecx

        $sequence_2 = { 8bc5 e9???????? 8b742414 83c9ff 8bfe 33c0 f2ae }
            // n = 7, score = 100
            //   8bc5                 | mov                 eax, ebp
            //   e9????????           |                     
            //   8b742414             | mov                 esi, dword ptr [esp + 0x14]
            //   83c9ff               | or                  ecx, 0xffffffff
            //   8bfe                 | mov                 edi, esi
            //   33c0                 | xor                 eax, eax
            //   f2ae                 | repne scasb         al, byte ptr es:[edi]

        $sequence_3 = { 8b7e04 83c608 8b06 8b5604 3b55e4 751a 3b45e0 }
            // n = 7, score = 100
            //   8b7e04               | mov                 edi, dword ptr [esi + 4]
            //   83c608               | add                 esi, 8
            //   8b06                 | mov                 eax, dword ptr [esi]
            //   8b5604               | mov                 edx, dword ptr [esi + 4]
            //   3b55e4               | cmp                 edx, dword ptr [ebp - 0x1c]
            //   751a                 | jne                 0x1c
            //   3b45e0               | cmp                 eax, dword ptr [ebp - 0x20]

        $sequence_4 = { 89c3 837b0400 741d eb11 89d8 e8???????? 89c2 }
            // n = 7, score = 100
            //   89c3                 | mov                 ebx, eax
            //   837b0400             | cmp                 dword ptr [ebx + 4], 0
            //   741d                 | je                  0x1f
            //   eb11                 | jmp                 0x13
            //   89d8                 | mov                 eax, ebx
            //   e8????????           |                     
            //   89c2                 | mov                 edx, eax

        $sequence_5 = { e9???????? a0???????? 3c0f 0f8741030000 25ff000000 ff2485105c4500 }
            // n = 6, score = 100
            //   e9????????           |                     
            //   a0????????           |                     
            //   3c0f                 | cmp                 al, 0xf
            //   0f8741030000         | ja                  0x347
            //   25ff000000           | and                 eax, 0xff
            //   ff2485105c4500       | jmp                 dword ptr [eax*4 + 0x455c10]

        $sequence_6 = { 81e7ff000000 57 50 51 e8???????? 8d542430 8d8424b0000000 }
            // n = 7, score = 100
            //   81e7ff000000         | and                 edi, 0xff
            //   57                   | push                edi
            //   50                   | push                eax
            //   51                   | push                ecx
            //   e8????????           |                     
            //   8d542430             | lea                 edx, [esp + 0x30]
            //   8d8424b0000000       | lea                 eax, [esp + 0xb0]

        $sequence_7 = { 7403 8b5bfc be01000000 39f3 7c1c 4e }
            // n = 6, score = 100
            //   7403                 | je                  5
            //   8b5bfc               | mov                 ebx, dword ptr [ebx - 4]
            //   be01000000           | mov                 esi, 1
            //   39f3                 | cmp                 ebx, esi
            //   7c1c                 | jl                  0x1e
            //   4e                   | dec                 esi

        $sequence_8 = { 898df0feffff 85c9 0f8e91010000 c785f4feffff2083b8ed ba01000000 b801000000 8d8df4feffff }
            // n = 7, score = 100
            //   898df0feffff         | mov                 dword ptr [ebp - 0x110], ecx
            //   85c9                 | test                ecx, ecx
            //   0f8e91010000         | jle                 0x197
            //   c785f4feffff2083b8ed     | mov    dword ptr [ebp - 0x10c], 0xedb88320
            //   ba01000000           | mov                 edx, 1
            //   b801000000           | mov                 eax, 1
            //   8d8df4feffff         | lea                 ecx, [ebp - 0x10c]

        $sequence_9 = { 42 89d0 48 8b0c85301f4600 c1e91e 89d0 48 }
            // n = 7, score = 100
            //   42                   | inc                 edx
            //   89d0                 | mov                 eax, edx
            //   48                   | dec                 eax
            //   8b0c85301f4600       | mov                 ecx, dword ptr [eax*4 + 0x461f30]
            //   c1e91e               | shr                 ecx, 0x1e
            //   89d0                 | mov                 eax, edx
            //   48                   | dec                 eax

    condition:
        7 of them and filesize < 1581056
}
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