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 (20230715 | Detects win.keyboy.)
rule win_keyboy_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2023-07-11"
        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 = "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 = { 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_1 = { 6a00 8945f2 8d45f8 50 6a0e }
            // n = 5, score = 600
            //   6a00                 | push                0
            //   8945f2               | mov                 dword ptr [ebp - 0xe], eax
            //   8d45f8               | lea                 eax, [ebp - 8]
            //   50                   | push                eax
            //   6a0e                 | push                0xe

        $sequence_2 = { c705????????0caa6c89 c705????????a856701f c705????????597e743c c705????????0a9769e0 c705????????c4b85363 }
            // n = 5, score = 500
            //   c705????????0caa6c89     |     
            //   c705????????a856701f     |     
            //   c705????????597e743c     |     
            //   c705????????0a9769e0     |     
            //   c705????????c4b85363     |     

        $sequence_3 = { c3 3b0d???????? f27502 f2c3 f2e953030000 55 }
            // n = 6, score = 500
            //   c3                   | ret                 
            //   3b0d????????         |                     
            //   f27502               | bnd jne             5
            //   f2c3                 | bnd ret             
            //   f2e953030000         | bnd jmp             0x359
            //   55                   | push                ebp

        $sequence_4 = { c705????????c4b85363 c705????????3abf261f c705????????890e9944 c705????????dbd99823 c705????????d468bcb5 c705????????2086e659 }
            // n = 6, score = 500
            //   c705????????c4b85363     |     
            //   c705????????3abf261f     |     
            //   c705????????890e9944     |     
            //   c705????????dbd99823     |     
            //   c705????????d468bcb5     |     
            //   c705????????2086e659     |     

        $sequence_5 = { c705????????d468bcb5 c705????????2086e659 c705????????eec45abf c705????????bbee2bd1 c705????????3e20f129 c705????????42be62c1 c705????????1a78e4c7 }
            // n = 7, score = 500
            //   c705????????d468bcb5     |     
            //   c705????????2086e659     |     
            //   c705????????eec45abf     |     
            //   c705????????bbee2bd1     |     
            //   c705????????3e20f129     |     
            //   c705????????42be62c1     |     
            //   c705????????1a78e4c7     |     

        $sequence_6 = { 83c9f8 41 8a043e 0fbe4c8de0 3401 }
            // n = 5, score = 400
            //   83c9f8               | or                  ecx, 0xfffffff8
            //   41                   | inc                 ecx
            //   8a043e               | mov                 al, byte ptr [esi + edi]
            //   0fbe4c8de0           | movsx               ecx, byte ptr [ebp + ecx*4 - 0x20]
            //   3401                 | xor                 al, 1

        $sequence_7 = { f7d9 85db 0f44c2 23c8 }
            // n = 4, score = 400
            //   f7d9                 | neg                 ecx
            //   85db                 | test                ebx, ebx
            //   0f44c2               | cmove               eax, edx
            //   23c8                 | and                 ecx, eax

        $sequence_8 = { c1e810 884106 8bc2 c1e808 }
            // n = 4, score = 400
            //   c1e810               | shr                 eax, 0x10
            //   884106               | mov                 byte ptr [ecx + 6], al
            //   8bc2                 | mov                 eax, edx
            //   c1e808               | shr                 eax, 8

        $sequence_9 = { 8b4df8 8bd6 e8???????? 6a00 ffb524fdffff }
            // n = 5, score = 400
            //   8b4df8               | mov                 ecx, dword ptr [ebp - 8]
            //   8bd6                 | mov                 edx, esi
            //   e8????????           |                     
            //   6a00                 | push                0
            //   ffb524fdffff         | push                dword ptr [ebp - 0x2dc]

        $sequence_10 = { 85c0 741d ff15???????? 6afe 8d45f0 }
            // n = 5, score = 400
            //   85c0                 | test                eax, eax
            //   741d                 | je                  0x1f
            //   ff15????????         |                     
            //   6afe                 | push                -2
            //   8d45f0               | lea                 eax, [ebp - 0x10]

        $sequence_11 = { ffd0 e9???????? bbfeffffff eb05 }
            // n = 4, score = 400
            //   ffd0                 | call                eax
            //   e9????????           |                     
            //   bbfeffffff           | mov                 ebx, 0xfffffffe
            //   eb05                 | jmp                 7

        $sequence_12 = { c745e453686c77 c745e861706900 ffd0 8bf0 c745dc5368656c }
            // n = 5, score = 400
            //   c745e453686c77       | mov                 dword ptr [ebp - 0x1c], 0x776c6853
            //   c745e861706900       | mov                 dword ptr [ebp - 0x18], 0x697061
            //   ffd0                 | call                eax
            //   8bf0                 | mov                 esi, eax
            //   c745dc5368656c       | mov                 dword ptr [ebp - 0x24], 0x6c656853

        $sequence_13 = { 8b75bc 8bce 8b15???????? a3???????? e8???????? }
            // n = 5, score = 400
            //   8b75bc               | mov                 esi, dword ptr [ebp - 0x44]
            //   8bce                 | mov                 ecx, esi
            //   8b15????????         |                     
            //   a3????????           |                     
            //   e8????????           |                     

        $sequence_14 = { e8???????? 85c0 755e 83ff20 }
            // n = 4, score = 400
            //   e8????????           |                     
            //   85c0                 | test                eax, eax
            //   755e                 | jne                 0x60
            //   83ff20               | cmp                 edi, 0x20

        $sequence_15 = { 3bf2 7cd6 5f 5e 8be5 5d }
            // n = 6, score = 400
            //   3bf2                 | cmp                 esi, edx
            //   7cd6                 | jl                  0xffffffd8
            //   5f                   | pop                 edi
            //   5e                   | pop                 esi
            //   8be5                 | mov                 esp, ebp
            //   5d                   | pop                 ebp

        $sequence_16 = { e8???????? 6a7c 8d4580 c7857cffffff736c6d00 }
            // n = 4, score = 400
            //   e8????????           |                     
            //   6a7c                 | push                0x7c
            //   8d4580               | lea                 eax, [ebp - 0x80]
            //   c7857cffffff736c6d00     | mov    dword ptr [ebp - 0x84], 0x6d6c73

        $sequence_17 = { 0fbe4c8de0 3401 0fbec0 0fafc8 80f185 880c3e 46 }
            // n = 7, score = 400
            //   0fbe4c8de0           | movsx               ecx, byte ptr [ebp + ecx*4 - 0x20]
            //   3401                 | xor                 al, 1
            //   0fbec0               | movsx               eax, al
            //   0fafc8               | imul                ecx, eax
            //   80f185               | xor                 cl, 0x85
            //   880c3e               | mov                 byte ptr [esi + edi], cl
            //   46                   | inc                 esi

        $sequence_18 = { e8???????? 85c0 790b b883ffffff }
            // n = 4, score = 400
            //   e8????????           |                     
            //   85c0                 | test                eax, eax
            //   790b                 | jns                 0xd
            //   b883ffffff           | mov                 eax, 0xffffff83

        $sequence_19 = { f6d8 1ac0 24dd 88474e e8???????? }
            // n = 5, score = 400
            //   f6d8                 | neg                 al
            //   1ac0                 | sbb                 al, al
            //   24dd                 | and                 al, 0xdd
            //   88474e               | mov                 byte ptr [edi + 0x4e], al
            //   e8????????           |                     

        $sequence_20 = { 24a0 3ca0 7518 b800080000 }
            // n = 4, score = 400
            //   24a0                 | and                 al, 0xa0
            //   3ca0                 | cmp                 al, 0xa0
            //   7518                 | jne                 0x1a
            //   b800080000           | mov                 eax, 0x800

        $sequence_21 = { 8bf2 c745f470646174 66c745f86500 8a02 42 84c0 75f9 }
            // n = 7, score = 400
            //   8bf2                 | mov                 esi, edx
            //   c745f470646174       | mov                 dword ptr [ebp - 0xc], 0x74616470
            //   66c745f86500         | mov                 word ptr [ebp - 8], 0x65
            //   8a02                 | mov                 al, byte ptr [edx]
            //   42                   | inc                 edx
            //   84c0                 | test                al, al
            //   75f9                 | jne                 0xfffffffb

        $sequence_22 = { c705????????ba66ea37 c705????????1671e665 c705????????f3106cb3 c705????????526c1ed0 c705????????5d05606c c705????????d18e5285 c705????????7c42ca7f }
            // n = 7, score = 400
            //   c705????????ba66ea37     |     
            //   c705????????1671e665     |     
            //   c705????????f3106cb3     |     
            //   c705????????526c1ed0     |     
            //   c705????????5d05606c     |     
            //   c705????????d18e5285     |     
            //   c705????????7c42ca7f     |     

        $sequence_23 = { b901000000 eb0f 3cfe 7509 }
            // n = 4, score = 400
            //   b901000000           | mov                 ecx, 1
            //   eb0f                 | jmp                 0x11
            //   3cfe                 | cmp                 al, 0xfe
            //   7509                 | jne                 0xb

        $sequence_24 = { 8bd9 6a00 50 e8???????? 83c40c 8d85fcf7ffff }
            // n = 6, score = 400
            //   8bd9                 | mov                 ebx, ecx
            //   6a00                 | push                0
            //   50                   | push                eax
            //   e8????????           |                     
            //   83c40c               | add                 esp, 0xc
            //   8d85fcf7ffff         | lea                 eax, [ebp - 0x804]

    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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