SYMBOLCOMMON_NAMEaka. SYNONYMS
win.arkei_stealer (Back to overview)

Arkei Stealer

aka: ArkeiStealer
URLhaus    

Arkei is a stealer that appeared around May 2018. It collects data about browsers (saved passwords and autofill forms), cryptocurrency wallets, and steal files matching an attacker-defined pattern. It then exfiltrates everything in a zip file uploaded to the attacker's panel. Later, it was forked and used as a base to create Vidar stealer.

References
2022-12-18ZAYOTEMEmre TÜRKYILMAZ, Celal Doğan DURAN
@online{trkyilmaz:20221218:arkei:a18364a, author = {Emre TÜRKYILMAZ and Celal Doğan DURAN}, title = {{Arkei Stealer Technical Analysis Report}}, date = {2022-12-18}, organization = {ZAYOTEM}, url = {https://drive.google.com/file/d/1wTH-BZrjxEBZwCnXJ3pQWGB7ou0IoBEr/view}, language = {English}, urldate = {2022-12-20} } Arkei Stealer Technical Analysis Report
Arkei Stealer
2022-11-07ThreatMonThreatMon Malware Research Team
@online{team:20221107:arkei:2d87f78, author = {ThreatMon Malware Research Team}, title = {{Arkei Staler Analysis}}, date = {2022-11-07}, organization = {ThreatMon}, url = {https://threatmon.io/arkei-stealer-analysis-threatmon/}, language = {English}, urldate = {2023-02-17} } Arkei Staler Analysis
Arkei Stealer
2022-10-13SpamhausSpamhaus Malware Labs
@techreport{labs:20221013:spamhaus:43e3190, author = {Spamhaus Malware Labs}, title = {{Spamhaus Botnet Threat Update Q3 2022}}, date = {2022-10-13}, institution = {Spamhaus}, url = {https://info.spamhaus.com/hubfs/Botnet%20Reports/2022%20Q3%20Botnet%20Threat%20Update.pdf}, language = {English}, urldate = {2022-12-29} } Spamhaus Botnet Threat Update Q3 2022
FluBot Arkei Stealer AsyncRAT Ave Maria BumbleBee Cobalt Strike DCRat Dridex Emotet Loki Password Stealer (PWS) Nanocore RAT NetWire RC NjRAT QakBot RecordBreaker RedLine Stealer Remcos Socelars Tofsee Vjw0rm
2022-07-13KELAKELA Cyber Intelligence Center
@online{center:20220713:next:b2e43e4, author = {KELA Cyber Intelligence Center}, title = {{The Next Generation of Info Stealers}}, date = {2022-07-13}, organization = {KELA}, url = {https://ke-la.com/information-stealers-a-new-landscape/}, language = {English}, urldate = {2022-07-18} } The Next Generation of Info Stealers
Arkei Stealer Azorult BlackGuard Eternity Stealer Ginzo Stealer Mars Stealer MetaStealer Raccoon RedLine Stealer Vidar
2022-03-23InfoSec Handlers Diary BlogBrad Duncan
@online{duncan:20220323:arkei:b2a08f5, author = {Brad Duncan}, title = {{Arkei Variants: From Vidar to Mars Stealer}}, date = {2022-03-23}, organization = {InfoSec Handlers Diary Blog}, url = {https://isc.sans.edu/diary/rss/28468}, language = {English}, urldate = {2022-03-25} } Arkei Variants: From Vidar to Mars Stealer
Arkei Stealer Mars Stealer Vidar
2022-02-17BlackberryBlackBerry Research & Intelligence Team
@online{team:20220217:threat:899b90a, author = {BlackBerry Research & Intelligence Team}, title = {{Threat Thursday: Arkei Infostealer Expands Reach Using SmokeLoader to Target Crypto Wallets and MFA}}, date = {2022-02-17}, organization = {Blackberry}, url = {https://blogs.blackberry.com/en/2022/02/threat-thursday-arkei-infostealer}, language = {English}, urldate = {2022-02-26} } Threat Thursday: Arkei Infostealer Expands Reach Using SmokeLoader to Target Crypto Wallets and MFA
Arkei Stealer SmokeLoader
2022-02-12forensicitguyTony Lambert
@online{lambert:20220212:analyzing:cea05eb, author = {Tony Lambert}, title = {{Analyzing a Stealer MSI using msitools}}, date = {2022-02-12}, organization = {forensicitguy}, url = {https://forensicitguy.github.io/analyzing-stealer-msi-using-msitools/}, language = {English}, urldate = {2022-02-14} } Analyzing a Stealer MSI using msitools
Arkei Stealer
2021-11-23Minerva LabsNatalie Zargarov
@online{zargarov:20211123:long:6d3da55, author = {Natalie Zargarov}, title = {{A Long List Of Arkei Stealer's Crypto Browser Wallets}}, date = {2021-11-23}, organization = {Minerva Labs}, url = {https://blog.minerva-labs.com/a-long-list-of-arkei-stealers-browser-crypto-wallets}, language = {English}, urldate = {2022-01-12} } A Long List Of Arkei Stealer's Crypto Browser Wallets
Arkei Stealer
2020-07-30SpamhausSpamhaus Malware Labs
@techreport{labs:20200730:spamhaus:038546d, author = {Spamhaus Malware Labs}, title = {{Spamhaus Botnet Threat Update Q2 2020}}, date = {2020-07-30}, institution = {Spamhaus}, url = {https://www.spamhaus.org/news/images/botnet-report-2020-q2/2020-q2-spamhaus-botnet-threat-report.pdf}, language = {English}, urldate = {2020-07-30} } Spamhaus Botnet Threat Update Q2 2020
AdWind Agent Tesla Arkei Stealer AsyncRAT Ave Maria Azorult DanaBot Emotet IcedID ISFB KPOT Stealer Loki Password Stealer (PWS) Nanocore RAT NetWire RC NjRAT Pony Raccoon RedLine Stealer Remcos Zloader
2018-12-24fumik0 blogfumik0
@online{fumik0:20181224:lets:f7dfc2c, author = {fumik0}, title = {{Let’s dig into Vidar – An Arkei Copycat/Forked Stealer (In-depth analysis)}}, date = {2018-12-24}, organization = {fumik0 blog}, url = {https://fumik0.com/2018/12/24/lets-dig-into-vidar-an-arkei-copycat-forked-stealer-in-depth-analysis/}, language = {English}, urldate = {2022-01-12} } Let’s dig into Vidar – An Arkei Copycat/Forked Stealer (In-depth analysis)
Arkei Stealer Vidar
2018-06-15Bleeping ComputerCatalin Cimpanu
@online{cimpanu:20180615:hacker:e0452dd, author = {Catalin Cimpanu}, title = {{Hacker Breaches Syscoin GitHub Account and Poisons Official Client}}, date = {2018-06-15}, organization = {Bleeping Computer}, url = {https://www.bleepingcomputer.com/news/security/hacker-breaches-syscoin-github-account-and-poisons-official-client/}, language = {English}, urldate = {2019-12-20} } Hacker Breaches Syscoin GitHub Account and Poisons Official Client
Arkei Stealer
Yara Rules
[TLP:WHITE] win_arkei_stealer_auto (20230125 | Detects win.arkei_stealer.)
rule win_arkei_stealer_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2023-01-25"
        version = "1"
        description = "Detects win.arkei_stealer."
        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.arkei_stealer"
        malpedia_rule_date = "20230124"
        malpedia_hash = "2ee0eebba83dce3d019a90519f2f972c0fcf9686"
        malpedia_version = "20230125"
        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 = { ff15???????? 85c0 74be 8b45e0 }
            // n = 4, score = 400
            //   ff15????????         |                     
            //   85c0                 | test                eax, eax
            //   74be                 | je                  0xffffffc0
            //   8b45e0               | mov                 eax, dword ptr [ebp - 0x20]

        $sequence_1 = { 682000cc00 53 56 6a00 6a00 57 53 }
            // n = 7, score = 400
            //   682000cc00           | push                0xcc0020
            //   53                   | push                ebx
            //   56                   | push                esi
            //   6a00                 | push                0
            //   6a00                 | push                0
            //   57                   | push                edi
            //   53                   | push                ebx

        $sequence_2 = { c70628000000 8b4dc8 894e04 8b55cc }
            // n = 4, score = 400
            //   c70628000000         | mov                 dword ptr [esi], 0x28
            //   8b4dc8               | mov                 ecx, dword ptr [ebp - 0x38]
            //   894e04               | mov                 dword ptr [esi + 4], ecx
            //   8b55cc               | mov                 edx, dword ptr [ebp - 0x34]

        $sequence_3 = { 8bf0 ffd3 8bd8 53 56 }
            // n = 5, score = 400
            //   8bf0                 | mov                 esi, eax
            //   ffd3                 | call                ebx
            //   8bd8                 | mov                 ebx, eax
            //   53                   | push                ebx
            //   56                   | push                esi

        $sequence_4 = { c70628000000 8b4dc8 894e04 8b55cc 895608 668b45d4 }
            // n = 6, score = 400
            //   c70628000000         | mov                 dword ptr [esi], 0x28
            //   8b4dc8               | mov                 ecx, dword ptr [ebp - 0x38]
            //   894e04               | mov                 dword ptr [esi + 4], ecx
            //   8b55cc               | mov                 edx, dword ptr [ebp - 0x34]
            //   895608               | mov                 dword ptr [esi + 8], edx
            //   668b45d4             | mov                 ax, word ptr [ebp - 0x2c]

        $sequence_5 = { 33d2 894dee 8955f2 8b4e20 8b16 8d448a0e }
            // n = 6, score = 400
            //   33d2                 | xor                 edx, edx
            //   894dee               | mov                 dword ptr [ebp - 0x12], ecx
            //   8955f2               | mov                 dword ptr [ebp - 0xe], edx
            //   8b4e20               | mov                 ecx, dword ptr [esi + 0x20]
            //   8b16                 | mov                 edx, dword ptr [esi]
            //   8d448a0e             | lea                 eax, [edx + ecx*4 + 0xe]

        $sequence_6 = { 8b00 50 ff15???????? 83f8ff 740b a810 7507 }
            // n = 7, score = 400
            //   8b00                 | mov                 eax, dword ptr [eax]
            //   50                   | push                eax
            //   ff15????????         |                     
            //   83f8ff               | cmp                 eax, -1
            //   740b                 | je                  0xd
            //   a810                 | test                al, 0x10
            //   7507                 | jne                 9

        $sequence_7 = { 85c0 74aa 8b4dd6 0faf4dd4 0fb7c1 }
            // n = 5, score = 400
            //   85c0                 | test                eax, eax
            //   74aa                 | je                  0xffffffac
            //   8b4dd6               | mov                 ecx, dword ptr [ebp - 0x2a]
            //   0faf4dd4             | imul                ecx, dword ptr [ebp - 0x2c]
            //   0fb7c1               | movzx               eax, cx

        $sequence_8 = { c1f803 0fafc1 0faf4608 33ff 50 57 897e10 }
            // n = 7, score = 400
            //   c1f803               | sar                 eax, 3
            //   0fafc1               | imul                eax, ecx
            //   0faf4608             | imul                eax, dword ptr [esi + 8]
            //   33ff                 | xor                 edi, edi
            //   50                   | push                eax
            //   57                   | push                edi
            //   897e10               | mov                 dword ptr [esi + 0x10], edi

        $sequence_9 = { 6a00 51 ff15???????? 85c0 74be }
            // n = 5, score = 400
            //   6a00                 | push                0
            //   51                   | push                ecx
            //   ff15????????         |                     
            //   85c0                 | test                eax, eax
            //   74be                 | je                  0xffffffc0

    condition:
        7 of them and filesize < 1744896
}
[TLP:WHITE] win_arkei_stealer_w0   (20181023 | Arkei Stealer)
rule win_arkei_stealer_w0 {
    meta:
        author = "Fumik0_"
        description = "Arkei Stealer"
        Date = "2018/07/10"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.arkei_stealer"
        malpedia_version = "20181023"
        malpedia_sharing = "TLP:WHITE"
        malpedia_license = ""
 
    strings:
        $s1 = "Arkei" wide ascii
        $s2 = "/server/gate" wide ascii
        $s3 = "/server/grubConfig" wide ascii
        $s4 = "\\files\\" wide ascii
        $s5 = "SQLite" wide ascii
 
    condition:
        all of ($s*)   
}
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