SYMBOLCOMMON_NAMEaka. SYNONYMS
win.keyboy (Back to overview)

KeyBoy

aka: TSSL

Actor(s): Pirate Panda


There is no description at this point.

References
2020SecureworksSecureWorks
@online{secureworks:2020:bronze:a654071, author = {SecureWorks}, title = {{BRONZE HOBART}}, date = {2020}, organization = {Secureworks}, url = {https://www.secureworks.com/research/threat-profiles/bronze-hobart}, language = {English}, urldate = {2020-05-23} } BRONZE HOBART
KeyBoy APT23
2018-03-14Trend MicroJaromír Hořejší, Joey Chen, Joseph C. Chen
@online{hoej:20180314:tropic:352cf22, author = {Jaromír Hořejší and Joey Chen and Joseph C. Chen}, title = {{Tropic Trooper’s New Strategy}}, date = {2018-03-14}, organization = {Trend Micro}, url = {https://blog.trendmicro.com/trendlabs-security-intelligence/tropic-trooper-new-strategy/}, language = {English}, urldate = {2020-01-09} } Tropic Trooper’s New Strategy
KeyBoy APT23
2017-11-02PWC UKBart Parys
@online{parys:20171102:keyboys:b57094e, author = {Bart Parys}, title = {{The KeyBoys are back in town}}, date = {2017-11-02}, organization = {PWC UK}, url = {https://www.pwc.co.uk/issues/cyber-security-data-privacy/research/the-keyboys-are-back-in-town.html}, language = {English}, urldate = {2020-06-18} } The KeyBoys are back in town
KeyBoy
2016-11-17CitizenLabAdam Hulcoop, Matt Brooks, Etienne Maynier, John Scott-Railton, Masashi Crete-Nishihata
@online{hulcoop:20161117:its:b644801, author = {Adam Hulcoop and Matt Brooks and Etienne Maynier and John Scott-Railton and Masashi Crete-Nishihata}, title = {{It’s Parliamentary - KeyBoy and the targeting of the Tibetan Community}}, date = {2016-11-17}, organization = {CitizenLab}, url = {https://citizenlab.ca/2016/11/parliament-keyboy/}, language = {English}, urldate = {2019-07-11} } It’s Parliamentary - KeyBoy and the targeting of the Tibetan Community
KeyBoy
2013-06-07Rapid7 LabsClaudio Guarnieri, Mark Schloesser
@online{guarnieri:20130607:keyboy:58ebd77, author = {Claudio Guarnieri and Mark Schloesser}, title = {{KeyBoy, Targeted Attacks against Vietnam and India}}, date = {2013-06-07}, organization = {Rapid7 Labs}, url = {https://blog.rapid7.com/2013/06/07/keyboy-targeted-attacks-against-vietnam-and-india/}, language = {English}, urldate = {2019-12-20} } KeyBoy, Targeted Attacks against Vietnam and India
KeyBoy APT23
Yara Rules
[TLP:WHITE] win_keyboy_auto (20221125 | Detects win.keyboy.)
rule win_keyboy_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2022-11-21"
        version = "1"
        description = "Detects win.keyboy."
        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.keyboy"
        malpedia_rule_date = "20221118"
        malpedia_hash = "e0702e2e6d1d00da65c8a29a4ebacd0a4c59e1af"
        malpedia_version = "20221125"
        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 = { 6a00 8945f2 8d45f8 50 6a0e 8d45e8 }
            // n = 6, score = 600
            //   6a00                 | push                0
            //   8945f2               | mov                 dword ptr [ebp - 0xe], eax
            //   8d45f8               | lea                 eax, [ebp - 8]
            //   50                   | push                eax
            //   6a0e                 | push                0xe
            //   8d45e8               | lea                 eax, [ebp - 0x18]

        $sequence_1 = { 51 ff75d8 6a00 ff75c0 }
            // n = 4, score = 600
            //   51                   | push                ecx
            //   ff75d8               | push                dword ptr [ebp - 0x28]
            //   6a00                 | push                0
            //   ff75c0               | push                dword ptr [ebp - 0x40]

        $sequence_2 = { c3 3b0d???????? f27502 f2c3 f2e953030000 }
            // n = 5, score = 500
            //   c3                   | ret                 
            //   3b0d????????         |                     
            //   f27502               | bnd jne             5
            //   f2c3                 | bnd ret             
            //   f2e953030000         | bnd jmp             0x359

        $sequence_3 = { c705????????d87f958c c705????????0caa6c89 c705????????a856701f c705????????597e743c c705????????0a9769e0 c705????????c4b85363 }
            // n = 6, score = 500
            //   c705????????d87f958c     |     
            //   c705????????0caa6c89     |     
            //   c705????????a856701f     |     
            //   c705????????597e743c     |     
            //   c705????????0a9769e0     |     
            //   c705????????c4b85363     |     

        $sequence_4 = { c705????????dbd99823 c705????????d468bcb5 c705????????2086e659 c705????????eec45abf c705????????bbee2bd1 c705????????3e20f129 c705????????42be62c1 }
            // n = 7, score = 500
            //   c705????????dbd99823     |     
            //   c705????????d468bcb5     |     
            //   c705????????2086e659     |     
            //   c705????????eec45abf     |     
            //   c705????????bbee2bd1     |     
            //   c705????????3e20f129     |     
            //   c705????????42be62c1     |     

        $sequence_5 = { c705????????597e743c c705????????0a9769e0 c705????????c4b85363 c705????????3abf261f c705????????890e9944 c705????????dbd99823 }
            // n = 6, score = 500
            //   c705????????597e743c     |     
            //   c705????????0a9769e0     |     
            //   c705????????c4b85363     |     
            //   c705????????3abf261f     |     
            //   c705????????890e9944     |     
            //   c705????????dbd99823     |     

        $sequence_6 = { 8bf9 0f1145f0 85d2 7e2a 8bce 81e107000080 }
            // n = 6, score = 400
            //   8bf9                 | mov                 edi, ecx
            //   0f1145f0             | movups              xmmword ptr [ebp - 0x10], xmm0
            //   85d2                 | test                edx, edx
            //   7e2a                 | jle                 0x2c
            //   8bce                 | mov                 ecx, esi
            //   81e107000080         | and                 ecx, 0x80000007

        $sequence_7 = { 24a0 3ca0 7518 b800080000 }
            // n = 4, score = 400
            //   24a0                 | and                 al, 0xa0
            //   3ca0                 | cmp                 al, 0xa0
            //   7518                 | jne                 0x1a
            //   b800080000           | mov                 eax, 0x800

        $sequence_8 = { 8b4604 0345fc 50 8b45f8 03c1 }
            // n = 5, score = 400
            //   8b4604               | mov                 eax, dword ptr [esi + 4]
            //   0345fc               | add                 eax, dword ptr [ebp - 4]
            //   50                   | push                eax
            //   8b45f8               | mov                 eax, dword ptr [ebp - 8]
            //   03c1                 | add                 eax, ecx

        $sequence_9 = { e8???????? 85c0 755e 83ff20 }
            // n = 4, score = 400
            //   e8????????           |                     
            //   85c0                 | test                eax, eax
            //   755e                 | jne                 0x60
            //   83ff20               | cmp                 edi, 0x20

        $sequence_10 = { e8???????? 85c0 790b b883ffffff }
            // n = 4, score = 400
            //   e8????????           |                     
            //   85c0                 | test                eax, eax
            //   790b                 | jns                 0xd
            //   b883ffffff           | mov                 eax, 0xffffff83

        $sequence_11 = { 8d45dc c745e06c333200 50 ff15???????? }
            // n = 4, score = 400
            //   8d45dc               | lea                 eax, [ebp - 0x24]
            //   c745e06c333200       | mov                 dword ptr [ebp - 0x20], 0x32336c
            //   50                   | push                eax
            //   ff15????????         |                     

        $sequence_12 = { b901000000 eb0f 3cfe 7509 }
            // n = 4, score = 400
            //   b901000000           | mov                 ecx, 1
            //   eb0f                 | jmp                 0x11
            //   3cfe                 | cmp                 al, 0xfe
            //   7509                 | jne                 0xb

        $sequence_13 = { c1e810 884106 8bc2 c1e808 884107 }
            // n = 5, score = 400
            //   c1e810               | shr                 eax, 0x10
            //   884106               | mov                 byte ptr [ecx + 6], al
            //   8bc2                 | mov                 eax, edx
            //   c1e808               | shr                 eax, 8
            //   884107               | mov                 byte ptr [ecx + 7], al

        $sequence_14 = { 41 84c0 75f0 8d55ec c745ec5c417070 c745f06c655c55 }
            // n = 6, score = 400
            //   41                   | inc                 ecx
            //   84c0                 | test                al, al
            //   75f0                 | jne                 0xfffffff2
            //   8d55ec               | lea                 edx, [ebp - 0x14]
            //   c745ec5c417070       | mov                 dword ptr [ebp - 0x14], 0x7070415c
            //   c745f06c655c55       | mov                 dword ptr [ebp - 0x10], 0x555c656c

        $sequence_15 = { 8bce a3???????? e8???????? 8b75c0 8bce }
            // n = 5, score = 400
            //   8bce                 | mov                 ecx, esi
            //   a3????????           |                     
            //   e8????????           |                     
            //   8b75c0               | mov                 esi, dword ptr [ebp - 0x40]
            //   8bce                 | mov                 ecx, esi

        $sequence_16 = { 7e2a 8bce 81e107000080 7905 49 83c9f8 }
            // n = 6, score = 400
            //   7e2a                 | jle                 0x2c
            //   8bce                 | mov                 ecx, esi
            //   81e107000080         | and                 ecx, 0x80000007
            //   7905                 | jns                 7
            //   49                   | dec                 ecx
            //   83c9f8               | or                  ecx, 0xfffffff8

        $sequence_17 = { 8d46d6 99 83e23f 03c2 }
            // n = 4, score = 400
            //   8d46d6               | lea                 eax, [esi - 0x2a]
            //   99                   | cdq                 
            //   83e23f               | and                 edx, 0x3f
            //   03c2                 | add                 eax, edx

        $sequence_18 = { 8d4de4 a3???????? 51 c745e453686c77 c745e861706900 ffd0 }
            // n = 6, score = 400
            //   8d4de4               | lea                 ecx, [ebp - 0x1c]
            //   a3????????           |                     
            //   51                   | push                ecx
            //   c745e453686c77       | mov                 dword ptr [ebp - 0x1c], 0x776c6853
            //   c745e861706900       | mov                 dword ptr [ebp - 0x18], 0x697061
            //   ffd0                 | call                eax

        $sequence_19 = { c745f06c655c55 8bf2 c745f470646174 66c745f86500 }
            // n = 4, score = 400
            //   c745f06c655c55       | mov                 dword ptr [ebp - 0x10], 0x555c656c
            //   8bf2                 | mov                 esi, edx
            //   c745f470646174       | mov                 dword ptr [ebp - 0xc], 0x74616470
            //   66c745f86500         | mov                 word ptr [ebp - 8], 0x65

        $sequence_20 = { 2408 f6d8 1ac0 24dd }
            // n = 4, score = 400
            //   2408                 | and                 al, 8
            //   f6d8                 | neg                 al
            //   1ac0                 | sbb                 al, al
            //   24dd                 | and                 al, 0xdd

        $sequence_21 = { 1ac0 24dd 88474e e8???????? }
            // n = 4, score = 400
            //   1ac0                 | sbb                 al, al
            //   24dd                 | and                 al, 0xdd
            //   88474e               | mov                 byte ptr [edi + 0x4e], al
            //   e8????????           |                     

    condition:
        7 of them and filesize < 2170880
}
[TLP:WHITE] win_keyboy_w0   (20180301 | No description)
import "pe"

rule win_keyboy_w0 {
    meta:
        author = "Florian Roth"
        reference = "http://www.pwc.co.uk/issues/cyber-security-data-privacy/research/the-keyboys-are-back-in-town.html"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.keyboy"
        malpedia_version = "20180301"
        malpedia_license = "CC BY-NC-SA 4.0"
        malpedia_sharing = "TLP:WHITE"
    strings:
        $x1 = "reg add HKLM\\%s\\Parameters /v ServiceDll /t REG_EXPAND_SZ /d \"%s\" /f" fullword ascii
        $x3 = "Internet using \\svchost.exe -k  -n 3" fullword ascii
        $x4 = "reg add \"HKLM\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Winlogon\" /v SFCDisable /t REG_DWORD /d 4 /f" fullword ascii

        $s1 = "sc create %s binpath= \"%s\" Type= share Start= auto DisplayName= \"%s\"" fullword ascii
        $s2 = "ExecCmd:%s" fullword ascii
        $s3 = "szCommand : %s" fullword ascii
        $s4 = "Current user is a member of the %s\\%s group" fullword ascii
        $s5 = "icacls %s /grant administrators:F" fullword ascii
        $s6 = "Ping 127.0.0.1 goto Repeat" fullword ascii
        $s7 = "Start MoveFile %s -> %s" fullword ascii
        $s8 = "move %s\\dllcache%s %s\\dllcache\\%s" fullword ascii
        $s9 = "%s\\cmd.exe /c \"%s\"" fullword ascii
    condition:
        pe.imphash() == "68f7eced34c46808756db4b0c45fb589" or
        ( pe.exports("Insys") and pe.exports("Inuser") and pe.exports("SSSS") ) or
        1 of ($x*) or
        4 of them
}
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