MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 25d1bf916e49bc1907c909e28366741760f7ec6a733345742333d03614245ba9. 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


Gafgyt


Vendor detections: 8


Intelligence 8 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 25d1bf916e49bc1907c909e28366741760f7ec6a733345742333d03614245ba9
SHA3-384 hash: de3aee4d96370f7ddb7aec10596b416eb72e714890631121f0af6a6124f15e89fd344ce7e5cd1b45704b8fb007838a1f
SHA1 hash: 75985d8051bf3195db7a2d4c07d9af373199009d
MD5 hash: 785548c4ffb26d6d28c41da8c87358e0
humanhash: hamper-oklahoma-hydrogen-don
File name:yakuza.sh4
Download: download sample
Signature Gafgyt
Create hunting rule
File size:95'921 bytes
First seen:2026-02-06 18:04:01 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:vghck8XcYT8z7XKDbTD1hulgkn2JxZ3CU5h8OWI6MaRMnhR090jUeQfXm:quqvaDnulgT3V5h8OvYMhR090QeQfXm
TLSH T10C933B0348615FB3C0456DB126FB59340B67BE260F4F1E9A752CAAF4474B8CEB41EBA4
telfhash t1a021e243a6b68a6c6ff3582458bc06b11592e6237250bf70ef5ec1809d37002b475e8b
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

Intelligence

File Origin
# of uploads :
1
# of downloads :
22
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Gathering data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
bashlite gafgyt gcc masquerade mirai
Link:
https://www.filescan.io/uploads/69862d25930564ff3c8fe074/reports/f076a375-8eff-46f6-8356-528e64a907c7/overview
Result
Gathering data
Verdict:
Malicious
File Type:
elf.32.le
Detections:
HEUR:Backdoor.Linux.Gafgyt.bj HEUR:Backdoor.Linux.Gafgyt.av HEUR:Backdoor.Linux.Gafgyt.fh HEUR:Backdoor.Linux.Gafgyt.dd HEUR:Backdoor.Linux.Gafgyt.bl
Link:
https://opentip.kaspersky.com/25d1bf916e49bc1907c909e28366741760f7ec6a733345742333d03614245ba9/results?tab=lookup
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/d131eb8f-6efb-48cf-9ed2-37ce6b113d1f
Result
Threat name:
Gafgyt, Mirai
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
88 / 100
Link:
https://www.joesandbox.com/analysis/1864926
Signature
Antivirus / Scanner detection for submitted sample
Found malware configuration
Multi AV Scanner detection for submitted file
Suricata IDS alerts for network traffic
Yara detected Gafgyt
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1864926 Sample: yakuza.sh4.elf Startdate: 06/02/2026 Architecture: LINUX Score: 88 17 158.94.210.187, 23, 33426 JANETJiscServicesLimitedGB United Kingdom 2->17 19 Suricata IDS alerts for network traffic 2->19 21 Found malware configuration 2->21 23 Antivirus / Scanner detection for submitted sample 2->23 25 3 other signatures 2->25 9 yakuza.sh4.elf 2->9         started        signatures3 process4 process5 11 yakuza.sh4.elf 9->11         started        process6 13 yakuza.sh4.elf 11->13         started        process7 15 yakuza.sh4.elf 13->15         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/25d1bf916e49bc1907c909e28366741760f7ec6a733345742333d03614245ba9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/25d1bf916e49bc1907c909e28366741760f7ec6a733345742333d03614245ba9/
Verdict:
Malicious
Threat:
Family.GAFGYT
Link:
https://tip.neiki.dev/file/25d1bf916e49bc1907c909e28366741760f7ec6a733345742333d03614245ba9
Threat name:
Linux.Trojan.Gafgyt
Create hunting rule
Status:
Malicious
First seen:
2026-02-06 17:24:24 UTC
File Type:
ELF32 Little (Exe)
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=exi37elojg6bsb6jbhrigztuc5qpp3dkomzuk5bdgpidmfbelouq._file
Result
Malware family:
gafgyt
Create hunting rule
Score:
  10/10
Tags:
family:gafgyt linux
Link:
https://tria.ge/reports/260206-wnr8xafy7h/
Malware Config
C2 Extraction:
158.94.210.187:23
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: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:Mal_LNX_Gafgyt_Botnet_ELF
Create hunting rule
Author:Phatcharadol Thangplub
Description:Use to detect Gafgyt botnet, and there variants.
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:setsockopt
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
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

Gafgyt

elf 25d1bf916e49bc1907c909e28366741760f7ec6a733345742333d03614245ba9

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3773164/
  
Delivery method
Distributed via web download

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