SYMBOLCOMMON_NAMEaka. SYNONYMS
win.mylobot (Back to overview)

MyloBot

aka: FakeDGA, WillExec

There is no description at this point.

References
2021-01-13AkamaiYael Daihes
@online{daihes:20210113:detecting:a348691, author = {Yael Daihes}, title = {{Detecting Mylobot, unseen DGA based malware, using Deep Learning}}, date = {2021-01-13}, organization = {Akamai}, url = {https://blogs.akamai.com/sitr/2021/01/detecting-mylobot-unseen-dga-based-malware-using-deep-learning.html}, language = {English}, urldate = {2021-01-26} } Detecting Mylobot, unseen DGA based malware, using Deep Learning
MyloBot
2018-11-15CenturylinkLabsBlack Lotus Labs
@online{labs:20181115:mylobot:4f8ccb3, author = {LabsBlack Lotus Labs}, title = {{Mylobot Continues Global Infections}}, date = {2018-11-15}, organization = {Centurylink}, url = {https://blog.centurylink.com/mylobot-continues-global-infections/}, language = {English}, urldate = {2019-12-24} } Mylobot Continues Global Infections
MyloBot
2018-06-20Deep instinctDalya Guttman
@online{guttman:20180620:meet:6ecec40, author = {Dalya Guttman}, title = {{Meet MyloBot – A New Highly Sophisticated Never-Seen-Before Botnet That’s Out In The Wild}}, date = {2018-06-20}, organization = {Deep instinct}, url = {https://www.deepinstinct.com/2018/06/20/meet-mylobot-a-new-highly-sophisticated-never-seen-before-botnet-thats-out-in-the-wild/}, language = {English}, urldate = {2021-11-19} } Meet MyloBot – A New Highly Sophisticated Never-Seen-Before Botnet That’s Out In The Wild
MyloBot
2017-11-08FreebufSecurity Leopard
@online{leopard:20171108:analysis:a6a1a01, author = {Security Leopard}, title = {{Analysis of an active USB flash drive virus}}, date = {2017-11-08}, organization = {Freebuf}, url = {http://www.freebuf.com/column/153424.html}, language = {Chinese}, urldate = {2020-01-13} } Analysis of an active USB flash drive virus
MyloBot
2017-10-27Cisco TalosCisco Talos
@online{talos:20171027:threat:ed694fa, author = {Cisco Talos}, title = {{Threat Round Up for Oct 20 - Oct 27}}, date = {2017-10-27}, organization = {Cisco Talos}, url = {http://blog.talosintelligence.com/2017/10/threat-round-up-1020-1017.html}, language = {English}, urldate = {2019-07-11} } Threat Round Up for Oct 20 - Oct 27
MyloBot
2017-05-27360netlabsuqitian
@online{suqitian:20170527:from:6c80cf6, author = {suqitian}, title = {{From PDNS: Another fix length of 7, a-z. tlds: [ru, com]}}, date = {2017-05-27}, organization = {360netlab}, url = {https://github.com/360netlab/DGA/issues/36}, language = {English}, urldate = {2019-10-23} } From PDNS: Another fix length of 7, a-z. tlds: [ru, com]
MyloBot
Yara Rules
[TLP:WHITE] win_mylobot_auto (20220808 | Detects win.mylobot.)
rule win_mylobot_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2022-08-05"
        version = "1"
        description = "Detects win.mylobot."
        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.mylobot"
        malpedia_rule_date = "20220805"
        malpedia_hash = "6ec06c64bcfdbeda64eff021c766b4ce34542b71"
        malpedia_version = "20220808"
        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 = { 74e4 8b5c241c 6880ee3600 ff15???????? }
            // n = 4, score = 1000
            //   74e4                 | je                  0xffffffe6
            //   8b5c241c             | mov                 ebx, dword ptr [esp + 0x1c]
            //   6880ee3600           | push                0x36ee80
            //   ff15????????         |                     

        $sequence_1 = { c745c43c000000 8945d4 83c40c a1???????? }
            // n = 4, score = 1000
            //   c745c43c000000       | mov                 dword ptr [ebp - 0x3c], 0x3c
            //   8945d4               | mov                 dword ptr [ebp - 0x2c], eax
            //   83c40c               | add                 esp, 0xc
            //   a1????????           |                     

        $sequence_2 = { 56 6a1a 56 ff903c010000 85c0 }
            // n = 5, score = 1000
            //   56                   | push                esi
            //   6a1a                 | push                0x1a
            //   56                   | push                esi
            //   ff903c010000         | call                dword ptr [eax + 0x13c]
            //   85c0                 | test                eax, eax

        $sequence_3 = { 7418 e8???????? 6a19 99 59 }
            // n = 5, score = 1000
            //   7418                 | je                  0x1a
            //   e8????????           |                     
            //   6a19                 | push                0x19
            //   99                   | cdq                 
            //   59                   | pop                 ecx

        $sequence_4 = { 8364240c00 8d442404 53 56 57 }
            // n = 5, score = 1000
            //   8364240c00           | and                 dword ptr [esp + 0xc], 0
            //   8d442404             | lea                 eax, [esp + 4]
            //   53                   | push                ebx
            //   56                   | push                esi
            //   57                   | push                edi

        $sequence_5 = { 8b0483 03c1 03c7 50 }
            // n = 4, score = 1000
            //   8b0483               | mov                 eax, dword ptr [ebx + eax*4]
            //   03c1                 | add                 eax, ecx
            //   03c7                 | add                 eax, edi
            //   50                   | push                eax

        $sequence_6 = { 50 a1???????? 6a02 ff502c }
            // n = 4, score = 1000
            //   50                   | push                eax
            //   a1????????           |                     
            //   6a02                 | push                2
            //   ff502c               | call                dword ptr [eax + 0x2c]

        $sequence_7 = { 894c2428 33c0 40 6a00 50 }
            // n = 5, score = 1000
            //   894c2428             | mov                 dword ptr [esp + 0x28], ecx
            //   33c0                 | xor                 eax, eax
            //   40                   | inc                 eax
            //   6a00                 | push                0
            //   50                   | push                eax

        $sequence_8 = { 57 895de8 895dec 895df0 895df4 895df8 }
            // n = 6, score = 800
            //   57                   | push                edi
            //   895de8               | mov                 dword ptr [ebp - 0x18], ebx
            //   895dec               | mov                 dword ptr [ebp - 0x14], ebx
            //   895df0               | mov                 dword ptr [ebp - 0x10], ebx
            //   895df4               | mov                 dword ptr [ebp - 0xc], ebx
            //   895df8               | mov                 dword ptr [ebp - 8], ebx

        $sequence_9 = { 83f802 7512 8b44240c 50 56 8d442418 }
            // n = 6, score = 800
            //   83f802               | cmp                 eax, 2
            //   7512                 | jne                 0x14
            //   8b44240c             | mov                 eax, dword ptr [esp + 0xc]
            //   50                   | push                eax
            //   56                   | push                esi
            //   8d442418             | lea                 eax, [esp + 0x18]

        $sequence_10 = { 8995e8feffff c785e0feffff02000000 6a00 6a00 8d8de0feffff }
            // n = 5, score = 800
            //   8995e8feffff         | mov                 dword ptr [ebp - 0x118], edx
            //   c785e0feffff02000000     | mov    dword ptr [ebp - 0x120], 2
            //   6a00                 | push                0
            //   6a00                 | push                0
            //   8d8de0feffff         | lea                 ecx, [ebp - 0x120]

        $sequence_11 = { 50 687e660480 51 ffd3 85c0 0f8500020000 }
            // n = 6, score = 800
            //   50                   | push                eax
            //   687e660480           | push                0x8004667e
            //   51                   | push                ecx
            //   ffd3                 | call                ebx
            //   85c0                 | test                eax, eax
            //   0f8500020000         | jne                 0x206

        $sequence_12 = { 52 8d45f4 50 6a1f }
            // n = 4, score = 800
            //   52                   | push                edx
            //   8d45f4               | lea                 eax, [ebp - 0xc]
            //   50                   | push                eax
            //   6a1f                 | push                0x1f

        $sequence_13 = { 8b4dfc 8b75f8 51 ffd7 33c0 3bf3 0f95c0 }
            // n = 7, score = 800
            //   8b4dfc               | mov                 ecx, dword ptr [ebp - 4]
            //   8b75f8               | mov                 esi, dword ptr [ebp - 8]
            //   51                   | push                ecx
            //   ffd7                 | call                edi
            //   33c0                 | xor                 eax, eax
            //   3bf3                 | cmp                 esi, ebx
            //   0f95c0               | setne               al

        $sequence_14 = { ffd6 8b35???????? b908000000 8d85c0fdffff }
            // n = 4, score = 800
            //   ffd6                 | call                esi
            //   8b35????????         |                     
            //   b908000000           | mov                 ecx, 8
            //   8d85c0fdffff         | lea                 eax, [ebp - 0x240]

        $sequence_15 = { 55 8bec 83ec0c 8b5514 c745f4ffffffff }
            // n = 5, score = 800
            //   55                   | push                ebp
            //   8bec                 | mov                 ebp, esp
            //   83ec0c               | sub                 esp, 0xc
            //   8b5514               | mov                 edx, dword ptr [ebp + 0x14]
            //   c745f4ffffffff       | mov                 dword ptr [ebp - 0xc], 0xffffffff

    condition:
        7 of them and filesize < 8028160
}
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