MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f81d178a43c42901e5a27b82e7845621f0ed36307c8c43343cae4029409876e8. 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: 10


Intelligence 10 IOCs YARA 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f81d178a43c42901e5a27b82e7845621f0ed36307c8c43343cae4029409876e8
SHA3-384 hash: 6072c364fc7adbe73a2a0796e8175828dfdee9f98e61566ed460c20295d7853bedb80a8b19cf91cb5deb68f7b8182587
SHA1 hash: 3cc50f814dadc2adc167b33974d4b3b1c4f1f8d0
MD5 hash: bbbea67deaf687eccffb9c14665b9e2d
humanhash: sweet-oxygen-nineteen-rugby
File name:assailant.arm5
Download: download sample
Signature Gafgyt
Create hunting rule
File size:120'771 bytes
First seen:2026-01-20 14:52:17 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:sJDZ+6lJQTnoo3nKVz3ecxPWl5hLSFuX0wX4eoC9DQlD6ObAF5R:k3eo+l5hLSFuDJoC9DQlD6ObAF5R
TLSH T132C30805FC404B27C7E22BBAF79E438D773666586BD733116A295EF02BC5B882D39160
telfhash t1a321e34396f68b2c6fb3587468fc46a11552a5237260bf70ef5ec1409d37005b579e8f
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 :
65
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Detection(s):
Sanesecurity.Malware.30395.LC.UNOFFICIAL
Create hunting rule

Unix.Trojan.Gafgyt-6981154-0
Create hunting rule

Unix.Dropper.Mirai-7138855-0
Create hunting rule

Unix.Dropper.Mirai-7139223-0
Create hunting rule

Unix.Dropper.Mirai-7139232-0
Create hunting rule

Unix.Proxy.Mirai-7844054-0
Create hunting rule

Unix.Trojan.Tsunami-9396652-0
Create hunting rule

Unix.Trojan.Mirai-9864781-0
Create hunting rule

Unix.Trojan.Mirai-10033529-0
Create hunting rule

Unix.Trojan.Mirai-10034904-0
Create hunting rule

Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-01-20T12:04:00Z UTC
Last seen:
2026-01-22T11:11:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Gafgyt.bl HEUR:Backdoor.Linux.Gafgyt.bj HEUR:Backdoor.Linux.Gafgyt.a HEUR:Backdoor.Linux.Gafgyt.fh HEUR:Backdoor.Linux.Gafgyt.f
Link:
https://opentip.kaspersky.com/f81d178a43c42901e5a27b82e7845621f0ed36307c8c43343cae4029409876e8/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/6c465977-b8fd-4c53-b33a-ee36d15f92aa
Behavior Graph:
Download SVG
%3 guuid=6a53816b-1f00-0000-2358-c7fb6d0c0000 pid=3181 /usr/bin/sudo guuid=584d4b6e-1f00-0000-2358-c7fb730c0000 pid=3187 /tmp/sample.bin guuid=6a53816b-1f00-0000-2358-c7fb6d0c0000 pid=3181->guuid=584d4b6e-1f00-0000-2358-c7fb730c0000 pid=3187 execve
Malware family:
Gafgyt
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c842a902-1d8e-4273-be8f-c60fc1e7bb42
Result
Threat name:
Gafgyt, Mirai
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
92 / 100
Link:
https://www.joesandbox.com/analysis/1854034
Signature
Antivirus / Scanner detection for submitted sample
Connects to many ports of the same IP (likely port scanning)
Found malware configuration
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected Gafgyt
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1854034 Sample: assailant.arm5.elf Startdate: 20/01/2026 Architecture: LINUX Score: 92 43 178.16.52.166, 42516 DUSNET-ASDE Germany 2->43 45 169.254.169.254, 80 USDOSUS Reserved 2->45 47 4 other IPs or domains 2->47 49 Found malware configuration 2->49 51 Malicious sample detected (through community Yara rule) 2->51 53 Antivirus / Scanner detection for submitted sample 2->53 55 4 other signatures 2->55 15 assailant.arm5.elf 2->15         started        17 python3.8 dpkg 2->17         started        19 dash rm 2->19         started        21 2 other processes 2->21 signatures3 process4 process5 23 assailant.arm5.elf 15->23         started        process6 25 assailant.arm5.elf 23->25         started        process7 27 assailant.arm5.elf 25->27         started        29 assailant.arm5.elf 25->29         started        process8 31 assailant.arm5.elf 27->31         started        process9 33 assailant.arm5.elf 31->33         started        process10 35 assailant.arm5.elf 33->35         started        process11 37 assailant.arm5.elf 35->37         started        process12 39 assailant.arm5.elf 37->39         started        process13 41 assailant.arm5.elf 39->41         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/f81d178a43c42901e5a27b82e7845621f0ed36307c8c43343cae4029409876e8
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f81d178a43c42901e5a27b82e7845621f0ed36307c8c43343cae4029409876e8/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/f81d178a43c42901e5a27b82e7845621f0ed36307c8c43343cae4029409876e8
Threat name:
Linux.Trojan.Gafgyt
Create hunting rule
Status:
Malicious
First seen:
2026-01-20 14:54:45 UTC
File Type:
ELF32 Little (Exe)
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7aorpcsdyquqdzncpobopbcwehyo2nrqpsgegnb4vzacsqeyo3ua._file
Result
Malware family:
gafgyt
Create hunting rule
Score:
  10/10
Tags:
family:gafgyt
Link:
https://tria.ge/reports/260120-r85brahs9d/
Malware Config
C2 Extraction:
178.16.52.166:42516
Verdict:
Malicious
Tags:
trojan gafgyt Unix.Trojan.Gafgyt-6981154-0
YARA:
Linux_Trojan_Gafgyt_30444846
Link:
https://app.threat.zone/submission/7d6d95f7-b21d-4d65-a65b-500ff7b92a16
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/f81d178a43c42901e5a27b82e7845621f0ed36307c8c43343cae4029409876e8

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:enterpriseapps2
Create hunting rule
Author:Tim Brown @timb_machine
Description:Enterprise apps
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Linux_Generic_Threat_d94e1020
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_30444846
Create hunting rule
Author:Elastic Security
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 f81d178a43c42901e5a27b82e7845621f0ed36307c8c43343cae4029409876e8

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3760678/
  
Delivery method
Distributed via web download

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