MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b870f5b857c3c9a5709ac92cac685c2d44a3467a8613f4f2e8a7b5e0fd81055b. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


Mirai


Vendor detections: 7


Intelligence 7 IOCs YARA 8 File information Comments
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SHA256 hash: b870f5b857c3c9a5709ac92cac685c2d44a3467a8613f4f2e8a7b5e0fd81055b
SHA3-384 hash: 3b19baa7e39ab827faafc7a2201cbfff8beade3d8d3060214c412e51488bd098e8cc25eb409b1040e768ebfd761173cc
SHA1 hash: 34d8dce537f78ba5b74454d29990dd9c72d7e1c5
MD5 hash: 2078a2d43508c52782ab9cb01f5bbd45
humanhash: louisiana-robert-fix-east
File name:rizzx.arc
Download: download sample
Signature Mirai
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File size:124'352 bytes
First seen:2026-02-26 04:12:48 UTC
Last seen:2026-02-26 21:22:49 UTC
File type: elf
MIME type:application/x-executable
ssdeep 1536:hcc9SlUg0gcM3Ryc4wTuwNhaIWqltmvyYqzD/1CNxZJPegmY/LWJ:J9SlOZQoGzNhRtEyY4/1CjegmYq
TLSH T1F8C3BED7F78B24A1C86146F007C76BDD2AA361119E6BE9E76C1E663B09390DF19063C2
TrID 50.1% (.) ELF Executable and Linkable format (Linux) (4022/12)
49.8% (.O) ELF Executable and Linkable format (generic) (4000/1)
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
2
# of downloads :
79
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Detection(s):
Sanesecurity.Malware.30435.LC.UNOFFICIAL
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Unix.Trojan.Mirai-7100807-0
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Unix.Dropper.Mirai-7135897-0
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Unix.Dropper.Mirai-7135901-0
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Unix.Dropper.Mirai-7135909-0
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Unix.Trojan.Mirai-7135916-0
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Unix.Dropper.Mirai-7135918-0
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Unix.Dropper.Mirai-7135954-0
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Unix.Dropper.Mirai-7136016-0
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Unix.Dropper.Mirai-7136028-0
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Unix.Trojan.Mirai-8025795-0
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Unix.Trojan.Mirai-9441505-0
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Unix.Dropper.Mirai-10007027-0
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Unix.Trojan.Mirai-10009361-0
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Unix.Trojan.Mirai-10059006-0
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Unix.Trojan.Mirai-10059216-0
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Verdict:
Malicious
File Type:
elf.32.le
Detections:
HEUR:Backdoor.Linux.Mirai.r HEUR:Backdoor.Linux.Mirai.cw HEUR:Backdoor.Linux.Mirai.b HEUR:Backdoor.Linux.Gafgyt.bl HEUR:Backdoor.Linux.Gafgyt.bj
Link:
https://opentip.kaspersky.com/b870f5b857c3c9a5709ac92cac685c2d44a3467a8613f4f2e8a7b5e0fd81055b/results?tab=lookup
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/7708b7d1-2650-4fa6-9ce3-09299d1f3681
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/b870f5b857c3c9a5709ac92cac685c2d44a3467a8613f4f2e8a7b5e0fd81055b
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b870f5b857c3c9a5709ac92cac685c2d44a3467a8613f4f2e8a7b5e0fd81055b/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/b870f5b857c3c9a5709ac92cac685c2d44a3467a8613f4f2e8a7b5e0fd81055b
Threat name:
Linux.Worm.Mirai
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Status:
Malicious
First seen:
2026-02-24 11:35:12 UTC
File Type:
ELF32 Little (Exe)
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xbyplocxype2k4e2zewky2c4fvckgrt2qyj7j4xiu626b7mbavnq._file
Result
Malware family:
mirai
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Score:
  10/10
Tags:
family:mirai linux
Link:
https://tria.ge/reports/260226-es9v3sat9h/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/b870f5b857c3c9a5709ac92cac685c2d44a3467a8613f4f2e8a7b5e0fd81055b

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:CP_Script_Inject_Detector
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Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:ELF_Toriilike_persist
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Author:4r4
Description:Detects Torii IoT Botnet (stealthier Mirai alternative)
Reference:Identified via researched data
Rule name:F01_s1ckrule
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Author:s1ckb017
Rule name:linux_generic_ipv6_catcher
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Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:MAL_ELF_Xlogin_Nov24_1
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Author:Florian Roth
Description:Detects xlogin backdoor samples
Reference:https://blog.sekoia.io/solving-the-7777-botnet-enigma-a-cybersecurity-quest/
Rule name:SUSP_XORed_Mozilla_Oct19
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Author:Florian Roth
Description:Detects suspicious single byte XORed keyword 'Mozilla/5.0' - it uses yara's XOR modifier and therefore cannot print the XOR key. You can use the CyberChef recipe linked in the reference field to brute force the used key.
Reference:https://gchq.github.io/CyberChef/#recipe=XOR_Brute_Force()
Rule name:SUSP_XORed_Mozilla_RID2DB4
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Author:Florian Roth
Description:Detects suspicious XORed keyword - Mozilla/5.0
Reference:Internal Research
Rule name:unixredflags3
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Author:Tim Brown @timb_machine
Description:Hunts for UNIX red flags

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Mirai

elf b870f5b857c3c9a5709ac92cac685c2d44a3467a8613f4f2e8a7b5e0fd81055b

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3785862/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3785883/
  
URLhaus
https://urlhaus.abuse.ch/url/3785904/

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