MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 43c81028d0668522809d1857b57886300a0beefa30ec2279f60ab282db25828c. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 43c81028d0668522809d1857b57886300a0beefa30ec2279f60ab282db25828c
SHA3-384 hash: 57beaf313e591d6c09a543c1f007e9660c652ae5b03bd7ec676fcfda1975a30393b8c99849ea21a7fd14c7bc05b77169
SHA1 hash: df6cb57612e1d1d343370f21f9d1c7cf44afd470
MD5 hash: c9344e38e057a8c70f4d71c2881b796f
humanhash: ohio-cold-montana-eighteen
File name:kvariant.sh4
Download: download sample
Signature Mirai
Create hunting rule
File size:72'172 bytes
First seen:2026-01-18 17:57:43 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:f/nN6EZRctVLlpJ9o+5UNbKsB+sdxaNpemtEzfCbnoR:n+Jv5UNesRxaNsrfT
TLSH T11A638D52CD262E28C558A8B0F4F1DF799B73E49092870ED5D0A2C3B9D043FACF9552B8
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 gafgyt mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
62
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Detection(s):
Sanesecurity.Malware.29524.LC.UNOFFICIAL
Create hunting rule

Unix.Dropper.Mirai-7136288-0
Create hunting rule

Unix.Trojan.Mirai-7138377-0
Create hunting rule

Unix.Exploit.Mirai-9795501-0
Create hunting rule

Unix.Exploit.Mirai-9798002-0
Create hunting rule

Unix.Dropper.Mirai-9977145-0
Create hunting rule

Unix.Trojan.Mirai-10042554-0
Create hunting rule

Unix.Trojan.Mirai-10042555-0
Create hunting rule

Result
Gathering data
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/19248341-38f1-439c-85af-081ec7f4fee0
Behavior Graph:
Download SVG
%3 guuid=0f17d814-1800-0000-a62a-9a852b0d0000 pid=3371 /usr/bin/sudo guuid=709efd16-1800-0000-a62a-9a85340d0000 pid=3380 /tmp/sample.bin guuid=0f17d814-1800-0000-a62a-9a852b0d0000 pid=3371->guuid=709efd16-1800-0000-a62a-9a85340d0000 pid=3380 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/f1074289-c710-46a6-84b8-fe4b5bdbc5ab
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
80 / 100
Link:
https://www.joesandbox.com/analysis/1852868
Signature
Antivirus / Scanner detection for submitted sample
Connects to many IPs within the same subnet mask (likely port scanning)
Connects to many ports of the same IP (likely port scanning)
Multi AV Scanner detection for submitted file
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1852868 Sample: kvariant.sh4.elf Startdate: 18/01/2026 Architecture: LINUX Score: 80 21 66.105.174.9 XO-AS15US United States 2->21 23 196.3.171.40, 37215 Vox-TelecomZA South Africa 2->23 25 99 other IPs or domains 2->25 27 Antivirus / Scanner detection for submitted sample 2->27 29 Multi AV Scanner detection for submitted file 2->29 31 Yara detected Mirai 2->31 33 2 other signatures 2->33 9 kvariant.sh4.elf 2->9         started        11 python3.8 dpkg 2->11         started        signatures3 process4 process5 13 kvariant.sh4.elf 9->13         started        process6 15 kvariant.sh4.elf 13->15         started        process7 17 kvariant.sh4.elf 15->17         started        19 kvariant.sh4.elf 15->19         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/43c81028d0668522809d1857b57886300a0beefa30ec2279f60ab282db25828c
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/43c81028d0668522809d1857b57886300a0beefa30ec2279f60ab282db25828c/
Threat name:
Linux.Backdoor.Gafgyt
Create hunting rule
Status:
Malicious
First seen:
2026-01-18 17:50:40 UTC
File Type:
ELF32 Little (Exe)
AV detection:
17 of 36 (47.22%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ipebakgqm2csfae5dbl3k6eggafax3x2gdwce6pwbkzifwzfqkga._file
Result
Malware family:
n/a
Score:
  1/10
Tags:
linux
Link:
https://tria.ge/reports/260118-wkcdaab16b/
Verdict:
Malicious
Tags:
Unix.Dropper.Mirai-7136288-0
YARA:
n/a
Link:
https://app.threat.zone/submission/5d214b39-c88b-454e-b305-f5d3770f051b
Please note that we are no longer able to provide a coverage score for Virus Total.

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:CVE_2017_17215
Create hunting rule
Author:NDA0E
Description:Detects exploitation attempt of CVE-2017-17215
Rule name:ELF_Mirai
Create hunting rule
Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:ELF_Toriilike_persist
Create hunting rule
Author:4r4
Description:Detects Torii IoT Botnet (stealthier Mirai alternative)
Reference:Identified via researched data
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:unixredflags3
Create hunting rule
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 43c81028d0668522809d1857b57886300a0beefa30ec2279f60ab282db25828c

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3759819/
  
Delivery method
Distributed via web download

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