SYMBOLCOMMON_NAMEaka. SYNONYMS
win.plead (Back to overview)

PLEAD

aka: DRAWDOWN, GOODTIMES, Linopid

Actor(s): BlackTech


PLEAD is a RAT used by the actor BlackTech. FireEye uses the synonyms GOODTIMES for the RAT module and DRAWDOWN for the respective downloader.

References
2020-12-24IronNetAdam Hlavek
@online{hlavek:20201224:china:723bed3, author = {Adam Hlavek}, title = {{China cyber attacks: the current threat landscape}}, date = {2020-12-24}, organization = {IronNet}, url = {https://www.ironnet.com/blog/china-cyber-attacks-the-current-threat-landscape}, language = {English}, urldate = {2021-01-01} } China cyber attacks: the current threat landscape
PLEAD TSCookie FlowCloud Lookback PLEAD PlugX Quasar RAT Winnti
2020-12-19Cyber And Ramen blogMike R
@online{r:20201219:persistence:b9043d9, author = {Mike R}, title = {{Persistence Pays Off: A Brief Look at BlackTech’s 2020}}, date = {2020-12-19}, organization = {Cyber And Ramen blog}, url = {https://www.cyberandramen.net/home/blacktech-doesnt-miss-a-step-a-quick-analysis-of-a-busy-2020}, language = {English}, urldate = {2021-01-01} } Persistence Pays Off: A Brief Look at BlackTech’s 2020
PLEAD TSCookie PLEAD
2020-09-29SymantecThreat Hunter Team
@online{team:20200929:palmerworm:4a96e3b, author = {Threat Hunter Team}, title = {{Palmerworm: Espionage Gang Targets the Media, Finance, and Other Sectors}}, date = {2020-09-29}, organization = {Symantec}, url = {https://symantec-enterprise-blogs.security.com/blogs/threat-intelligence/palmerworm-blacktech-espionage-apt}, language = {English}, urldate = {2020-10-04} } Palmerworm: Espionage Gang Targets the Media, Finance, and Other Sectors
KIVARS PLEAD BlackTech
2019-12-12FireEyeChi-en Shen, Oleg Bondarenko
@online{shen:20191212:cyber:e01baca, author = {Chi-en Shen and Oleg Bondarenko}, title = {{Cyber Threat Landscape in Japan – Revealing Threat in the Shadow}}, date = {2019-12-12}, organization = {FireEye}, url = {https://www.slideshare.net/codeblue_jp/cb19-cyber-threat-landscape-in-japan-revealing-threat-in-the-shadow-by-chi-en-shen-ashley-oleg-bondarenko}, language = {English}, urldate = {2020-04-16} } Cyber Threat Landscape in Japan – Revealing Threat in the Shadow
Cerberus TSCookie Cobalt Strike Dtrack Emotet Formbook IcedID Icefog IRONHALO Loki Password Stealer (PWS) PandaBanker PLEAD poisonplug TrickBot BlackTech
2019-11-22SANS Cyber Security SummitSveva Vittoria Scenarelli, Rachel Mullan
@techreport{scenarelli:20191122:need:00f7cef, author = {Sveva Vittoria Scenarelli and Rachel Mullan}, title = {{Need for PLEAD: BlackTech Pursuit}}, date = {2019-11-22}, institution = {SANS Cyber Security Summit}, url = {https://web.archive.org/web/20200229012206/https://www.sans.org/cyber-security-summit/archives/file/summit-archive-1574947724.pdf}, language = {English}, urldate = {2021-01-25} } Need for PLEAD: BlackTech Pursuit
BLUETHER PLEAD
2019-10-01Macnica NetworksMacnica Networks
@techreport{networks:20191001:trends:30fb713, author = {Macnica Networks}, title = {{Trends in Cyber ​​Espionage Targeting Japan 1st Half of 2019}}, date = {2019-10-01}, institution = {Macnica Networks}, url = {https://www.macnica.net/file/mpressioncss_ta_report_2019_2_nopw.pdf}, language = {Japanese}, urldate = {2021-03-02} } Trends in Cyber ​​Espionage Targeting Japan 1st Half of 2019
PLEAD TSCookie Datper PLEAD
2019-09-18JPCERT/CCShusei Tomonaga
@online{tomonaga:20190918:malware:67390e7, author = {Shusei Tomonaga}, title = {{Malware Used by BlackTech after Network Intrusion}}, date = {2019-09-18}, organization = {JPCERT/CC}, url = {https://blogs.jpcert.or.jp/en/2019/09/tscookie-loader.html}, language = {English}, urldate = {2019-11-16} } Malware Used by BlackTech after Network Intrusion
PLEAD
2019-08-01Kaspersky LabsGReAT
@online{great:20190801:trends:5e25d5b, author = {GReAT}, title = {{APT trends report Q2 2019}}, date = {2019-08-01}, organization = {Kaspersky Labs}, url = {https://securelist.com/apt-trends-report-q2-2019/91897/}, language = {English}, urldate = {2020-08-13} } APT trends report Q2 2019
ZooPark magecart POWERSTATS Chaperone COMpfun EternalPetya FinFisher RAT HawkEye Keylogger HOPLIGHT Microcin NjRAT Olympic Destroyer PLEAD RokRAT Triton Zebrocy
2019-05-30JPCERT/CCShusei Tomonaga
@online{tomonaga:20190530:bug:cf70c8d, author = {Shusei Tomonaga}, title = {{Bug in Malware “TSCookie” - Fails to Read Configuration - (Update)}}, date = {2019-05-30}, organization = {JPCERT/CC}, url = {https://blogs.jpcert.or.jp/en/2019/05/tscookie3.html}, language = {English}, urldate = {2020-01-13} } Bug in Malware “TSCookie” - Fails to Read Configuration - (Update)
PLEAD
2019-05-14ESET ResearchAnton Cherepanov
@online{cherepanov:20190514:plead:3140588, author = {Anton Cherepanov}, title = {{Plead malware distributed via MitM attacks at router level, misusing ASUS WebStorage}}, date = {2019-05-14}, organization = {ESET Research}, url = {https://www.welivesecurity.com/2019/05/14/plead-malware-mitm-asus-webstorage/}, language = {English}, urldate = {2019-11-14} } Plead malware distributed via MitM attacks at router level, misusing ASUS WebStorage
PLEAD BlackTech
2019-04-01Macnica NetworksMacnica Networks
@techreport{networks:20190401:trends:cf738dc, author = {Macnica Networks}, title = {{Trends in Cyber ​​Espionage Targeting Japan 2nd Half of 2018}}, date = {2019-04-01}, institution = {Macnica Networks}, url = {https://www.macnica.net/file/mpressioncss_ta_report_2019.pdf}, language = {Japanese}, urldate = {2021-03-02} } Trends in Cyber ​​Espionage Targeting Japan 2nd Half of 2018
Anel Cobalt Strike Datper PLEAD Quasar RAT RedLeaves taidoor Zebrocy
2018-11-12JPCERT/CCShusei Tomonaga
@online{tomonaga:20181112:bug:fe13af3, author = {Shusei Tomonaga}, title = {{Bug in Malware “TSCookie” - Fails to Read Configuration}}, date = {2018-11-12}, organization = {JPCERT/CC}, url = {https://blogs.jpcert.or.jp/en/2018/11/tscookie2.html}, language = {English}, urldate = {2019-10-28} } Bug in Malware “TSCookie” - Fails to Read Configuration
PLEAD
2018-07-09ESET ResearchAnton Cherepanov
@online{cherepanov:20180709:certificates:ae214b6, author = {Anton Cherepanov}, title = {{Certificates stolen from Taiwanese tech‑companies misused in Plead malware campaign}}, date = {2018-07-09}, organization = {ESET Research}, url = {https://www.welivesecurity.com/2018/07/09/certificates-stolen-taiwanese-tech-companies-plead-malware-campaign/}, language = {English}, urldate = {2019-11-14} } Certificates stolen from Taiwanese tech‑companies misused in Plead malware campaign
PLEAD BlackTech
2018-06-08JPCERT/CCShusei Tomonaga
@online{tomonaga:20180608:plead:046d5bc, author = {Shusei Tomonaga}, title = {{PLEAD Downloader Used by BlackTech}}, date = {2018-06-08}, organization = {JPCERT/CC}, url = {https://blog.jpcert.or.jp/2018/06/plead-downloader-used-by-blacktech.html}, language = {English}, urldate = {2020-01-06} } PLEAD Downloader Used by BlackTech
PLEAD
2018-03-06Shusei Tomonaga
@online{tomonaga:20180306:malware:f5fea73, author = {Shusei Tomonaga}, title = {{Malware “TSCookie”}}, date = {2018-03-06}, url = {http://blog.jpcert.or.jp/2018/03/malware-tscooki-7aa0.html}, language = {English}, urldate = {2020-01-07} } Malware “TSCookie”
PLEAD
2018-01-10FreebufTencent Computer Manager
@online{manager:20180110:analysis:3a5fe83, author = {Tencent Computer Manager}, title = {{Analysis of BlackTech's latest APT attack}}, date = {2018-01-10}, organization = {Freebuf}, url = {http://www.freebuf.com/column/159865.html}, language = {English}, urldate = {2020-01-08} } Analysis of BlackTech's latest APT attack
PLEAD
2017-06-22Trend MicroLenart Bermejo, Razor Huang, CH Lei
@online{bermejo:20170622:trail:ba78447, author = {Lenart Bermejo and Razor Huang and CH Lei}, title = {{The Trail of BlackTech’s Cyber Espionage Campaigns}}, date = {2017-06-22}, organization = {Trend Micro}, url = {https://www.trendmicro.com/en_us/research/17/f/following-trail-blacktech-cyber-espionage-campaigns.html}, language = {English}, urldate = {2021-01-29} } The Trail of BlackTech’s Cyber Espionage Campaigns
bifrose KIVARS PLEAD
2017-06-22Trend MicroLenart Bermejo, Razor Huang, CH Lei
@online{bermejo:20170622:following:7126b3b, author = {Lenart Bermejo and Razor Huang and CH Lei}, title = {{Following the Trail of BlackTech’s Cyber Espionage Campaigns}}, date = {2017-06-22}, organization = {Trend Micro}, url = {https://blog.trendmicro.com/trendlabs-security-intelligence/following-trail-blacktech-cyber-espionage-campaigns/}, language = {English}, urldate = {2019-12-24} } Following the Trail of BlackTech’s Cyber Espionage Campaigns
PLEAD BlackTech
2017-06Trend MicroLenart Bermejo, Razor Huang, CH Lei
@techreport{bermejo:201706:following:61e6dae, author = {Lenart Bermejo and Razor Huang and CH Lei}, title = {{Following the Trail of BlackTech’s Cyber Espionage Campaigns}}, date = {2017-06}, institution = {Trend Micro}, url = {https://documents.trendmicro.com/assets/appendix-following-the-trail-of-blacktechs-cyber-espionage-campaigns.pdf}, language = {English}, urldate = {2020-01-07} } Following the Trail of BlackTech’s Cyber Espionage Campaigns
PLEAD
2016-04-13FireEyeDaniel Regalado, Taha Karim, Varun Jian, Erye Hernandez
@online{regalado:20160413:ghosts:5d2944f, author = {Daniel Regalado and Taha Karim and Varun Jian and Erye Hernandez}, title = {{Ghosts in the Endpoint}}, date = {2016-04-13}, organization = {FireEye}, url = {https://www.fireeye.com/blog/threat-research/2016/04/ghosts_in_the_endpoi.html}, language = {English}, urldate = {2020-04-20} } Ghosts in the Endpoint
PLEAD
2014-07-02Trend MicroKervin Alintanahin, Ronnie Giagone
@online{alintanahin:20140702:kivars:4fe6877, author = {Kervin Alintanahin and Ronnie Giagone}, title = {{KIVARS With Venom: Targeted Attacks Upgrade with 64-bit “Support”}}, date = {2014-07-02}, organization = {Trend Micro}, url = {https://blog.trendmicro.com/trendlabs-security-intelligence/kivars-with-venom-targeted-attacks-upgrade-with-64-bit-support/}, language = {English}, urldate = {2020-06-19} } KIVARS With Venom: Targeted Attacks Upgrade with 64-bit “Support”
FakeWord KIVARS PLEAD Poison RAT Zeus
Yara Rules
[TLP:WHITE] win_plead_auto (20220808 | Detects win.plead.)
rule win_plead_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2022-08-05"
        version = "1"
        description = "Detects win.plead."
        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.plead"
        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 = { e8???????? 83c40c 8d4514 53 }
            // n = 4, score = 900
            //   e8????????           |                     
            //   83c40c               | add                 esp, 0xc
            //   8d4514               | lea                 eax, [ebp + 0x14]
            //   53                   | push                ebx

        $sequence_1 = { 85c0 750f 56 ff15???????? 6afe 58 }
            // n = 6, score = 900
            //   85c0                 | test                eax, eax
            //   750f                 | jne                 0x11
            //   56                   | push                esi
            //   ff15????????         |                     
            //   6afe                 | push                -2
            //   58                   | pop                 eax

        $sequence_2 = { 750c c745fcfdffffff e9???????? 53 }
            // n = 4, score = 900
            //   750c                 | jne                 0xe
            //   c745fcfdffffff       | mov                 dword ptr [ebp - 4], 0xfffffffd
            //   e9????????           |                     
            //   53                   | push                ebx

        $sequence_3 = { 740f ebda 33f6 c745fcf8ffffff 3bf7 750c }
            // n = 6, score = 900
            //   740f                 | je                  0x11
            //   ebda                 | jmp                 0xffffffdc
            //   33f6                 | xor                 esi, esi
            //   c745fcf8ffffff       | mov                 dword ptr [ebp - 4], 0xfffffff8
            //   3bf7                 | cmp                 esi, edi
            //   750c                 | jne                 0xe

        $sequence_4 = { bf00020100 57 6a08 ff15???????? 50 }
            // n = 5, score = 900
            //   bf00020100           | mov                 edi, 0x10200
            //   57                   | push                edi
            //   6a08                 | push                8
            //   ff15????????         |                     
            //   50                   | push                eax

        $sequence_5 = { 50 56 ff15???????? 85c0 750f 56 }
            // n = 6, score = 900
            //   50                   | push                eax
            //   56                   | push                esi
            //   ff15????????         |                     
            //   85c0                 | test                eax, eax
            //   750f                 | jne                 0x11
            //   56                   | push                esi

        $sequence_6 = { 53 6a13 ff7508 ff15???????? 85c0 }
            // n = 5, score = 900
            //   53                   | push                ebx
            //   6a13                 | push                0x13
            //   ff7508               | push                dword ptr [ebp + 8]
            //   ff15????????         |                     
            //   85c0                 | test                eax, eax

        $sequence_7 = { ff15???????? 3dc8000000 59 754c }
            // n = 4, score = 900
            //   ff15????????         |                     
            //   3dc8000000           | cmp                 eax, 0xc8
            //   59                   | pop                 ecx
            //   754c                 | jne                 0x4e

        $sequence_8 = { 25ffff0000 50 8b8daefcffff 81e1ffff0000 51 }
            // n = 5, score = 600
            //   25ffff0000           | and                 eax, 0xffff
            //   50                   | push                eax
            //   8b8daefcffff         | mov                 ecx, dword ptr [ebp - 0x352]
            //   81e1ffff0000         | and                 ecx, 0xffff
            //   51                   | push                ecx

        $sequence_9 = { ffd6 6a0b ff15???????? 6a00 6a00 }
            // n = 5, score = 600
            //   ffd6                 | call                esi
            //   6a0b                 | push                0xb
            //   ff15????????         |                     
            //   6a00                 | push                0
            //   6a00                 | push                0

        $sequence_10 = { 6801020000 6a01 50 ff15???????? 50 ff15???????? }
            // n = 6, score = 600
            //   6801020000           | push                0x201
            //   6a01                 | push                1
            //   50                   | push                eax
            //   ff15????????         |                     
            //   50                   | push                eax
            //   ff15????????         |                     

        $sequence_11 = { 6a00 ff15???????? 6a02 a3???????? 8b8c242c020000 51 ff15???????? }
            // n = 7, score = 600
            //   6a00                 | push                0
            //   ff15????????         |                     
            //   6a02                 | push                2
            //   a3????????           |                     
            //   8b8c242c020000       | mov                 ecx, dword ptr [esp + 0x22c]
            //   51                   | push                ecx
            //   ff15????????         |                     

        $sequence_12 = { 8b1d???????? ffd3 8bf8 33f6 8bcf 81e1ff000080 7908 }
            // n = 7, score = 600
            //   8b1d????????         |                     
            //   ffd3                 | call                ebx
            //   8bf8                 | mov                 edi, eax
            //   33f6                 | xor                 esi, esi
            //   8bcf                 | mov                 ecx, edi
            //   81e1ff000080         | and                 ecx, 0x800000ff
            //   7908                 | jns                 0xa

        $sequence_13 = { 81ff00002000 0f87f1000000 8d5701 52 }
            // n = 4, score = 600
            //   81ff00002000         | cmp                 edi, 0x200000
            //   0f87f1000000         | ja                  0xf7
            //   8d5701               | lea                 edx, [edi + 1]
            //   52                   | push                edx

        $sequence_14 = { 52 50 51 8b8c2428020000 51 ff15???????? }
            // n = 6, score = 600
            //   52                   | push                edx
            //   50                   | push                eax
            //   51                   | push                ecx
            //   8b8c2428020000       | mov                 ecx, dword ptr [esp + 0x228]
            //   51                   | push                ecx
            //   ff15????????         |                     

        $sequence_15 = { 8b84241c020000 6880000000 6a00 6a00 6a00 }
            // n = 5, score = 600
            //   8b84241c020000       | mov                 eax, dword ptr [esp + 0x21c]
            //   6880000000           | push                0x80
            //   6a00                 | push                0
            //   6a00                 | push                0
            //   6a00                 | push                0

        $sequence_16 = { 648b1530000000 8b520c 8b521c 8b5a08 }
            // n = 4, score = 200
            //   648b1530000000       | mov                 edx, dword ptr fs:[0x30]
            //   8b520c               | mov                 edx, dword ptr [edx + 0xc]
            //   8b521c               | mov                 edx, dword ptr [edx + 0x1c]
            //   8b5a08               | mov                 ebx, dword ptr [edx + 8]

        $sequence_17 = { 85db 7505 bb50000000 8d4580 50 53 }
            // n = 6, score = 100
            //   85db                 | test                ebx, ebx
            //   7505                 | jne                 7
            //   bb50000000           | mov                 ebx, 0x50
            //   8d4580               | lea                 eax, [ebp - 0x80]
            //   50                   | push                eax
            //   53                   | push                ebx

        $sequence_18 = { b900001800 3bc1 7c02 8bc1 50 ff5668 e9???????? }
            // n = 7, score = 100
            //   b900001800           | mov                 ecx, 0x180000
            //   3bc1                 | cmp                 eax, ecx
            //   7c02                 | jl                  4
            //   8bc1                 | mov                 eax, ecx
            //   50                   | push                eax
            //   ff5668               | call                dword ptr [esi + 0x68]
            //   e9????????           |                     

        $sequence_19 = { 57 ff96a8000000 33c0 eb47 6a04 8d45fc }
            // n = 6, score = 100
            //   57                   | push                edi
            //   ff96a8000000         | call                dword ptr [esi + 0xa8]
            //   33c0                 | xor                 eax, eax
            //   eb47                 | jmp                 0x49
            //   6a04                 | push                4
            //   8d45fc               | lea                 eax, [ebp - 4]

        $sequence_20 = { 33c9 021c07 021c0e 8a140e }
            // n = 4, score = 100
            //   33c9                 | xor                 ecx, ecx
            //   021c07               | add                 bl, byte ptr [edi + eax]
            //   021c0e               | add                 bl, byte ptr [esi + ecx]
            //   8a140e               | mov                 dl, byte ptr [esi + ecx]

        $sequence_21 = { 8b7c242c 8b742428 ff7608 8f87b8000000 ff760c 8f87a0000000 }
            // n = 6, score = 100
            //   8b7c242c             | mov                 edi, dword ptr [esp + 0x2c]
            //   8b742428             | mov                 esi, dword ptr [esp + 0x28]
            //   ff7608               | push                dword ptr [esi + 8]
            //   8f87b8000000         | pop                 dword ptr [edi + 0xb8]
            //   ff760c               | push                dword ptr [esi + 0xc]
            //   8f87a0000000         | pop                 dword ptr [edi + 0xa0]

        $sequence_22 = { 6a10 50 57 ff9694000000 }
            // n = 4, score = 100
            //   6a10                 | push                0x10
            //   50                   | push                eax
            //   57                   | push                edi
            //   ff9694000000         | call                dword ptr [esi + 0x94]

        $sequence_23 = { 8d7d88 e8???????? b02c aa 8b4510 }
            // n = 5, score = 100
            //   8d7d88               | lea                 edi, [ebp - 0x78]
            //   e8????????           |                     
            //   b02c                 | mov                 al, 0x2c
            //   aa                   | stosb               byte ptr es:[edi], al
            //   8b4510               | mov                 eax, dword ptr [ebp + 0x10]

    condition:
        7 of them and filesize < 8224768
}
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