MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 b5f0994117bf18e836aa1a1281171e823e36ce2480c107291a6b51255b6b324a. 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: 13
| SHA256 hash: | b5f0994117bf18e836aa1a1281171e823e36ce2480c107291a6b51255b6b324a |
|---|---|
| SHA3-384 hash: | 0bb6458bc075268a263dba41e801ddf3ebcee606ad339954e5d48da45fc6dfc35d9ff835bc16ec4b4def6591ffe786d6 |
| SHA1 hash: | 6a0fe09926a2db3cde7097ac799fbc46da9848c5 |
| MD5 hash: | 5c024a2738fedb3c3900fffe3302c11a |
| humanhash: | sierra-north-mississippi-fourteen |
| File name: | x86_64.kok |
| Download: | download sample |
| Signature | Mirai |
| File size: | 194'352 bytes |
| First seen: | 2026-01-09 07:22:19 UTC |
| Last seen: | Never |
| File type: | elf |
| MIME type: | application/x-executable |
| ssdeep | 3072:rugGCYxLmP68MWRw38F/gOJKtKI1c0Vk6zwFgHrsRV:rBGC0LaCWu38FjMPdkuVAf |
| TLSH | T111146B06F68190FFE89AC33852EEA632D9B2782D1235769D67C5FF153C48E20363E645 |
| telfhash | t1e94178741dd1341852e7c352b21fe67dae72081196ed36e8af27e5e9ed437c40ca6822 |
| 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 :
76
Origin country :
DEVendor Threat Intelligence
No detections
Result
Verdict:
Malware
Maliciousness:
Behaviour
Deleting a recently created file
Removes directories from a subdirectory of a temporary directory
Sets a written file as executable
Creates directories in a temporary directory
Creating a file in the %temp% directory
Creates directories in a subdirectory of a temporary directory
Opens a port
Creating a file in the %temp% subdirectories
Launching a process
Verdict:
Unknown
Threat level:
0/10
Confidence:
100%
Tags:
base64 masquerade mirai
Result
Gathering data
Verdict:
Malicious
File Type:
elf.64.le
First seen:
2026-01-09T04:29:00Z UTC
Last seen:
2026-01-09T04:29:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Mirai.b HEUR:Backdoor.Linux.Gafgyt.ij HEUR:Backdoor.Linux.Gafgyt.gu
Status:
terminated
Behavior Graph:
Verdict:
Unknown
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
64 / 100
Signature
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample contains AV-related strings
Sample pipes script to sh (AV evasion)
Behaviour
Behavior Graph:
Score:
100%
Verdict:
Malware
File Type:
ELF
Verdict:
Malicious
Threat:
Family.MIRAI
Threat name:
Linux.Backdoor.Gafgyt
Status:
Malicious
First seen:
2026-01-09 07:22:36 UTC
File Type:
ELF64 Little (Exe)
AV detection:
9 of 36 (25.00%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
mirai
Score:
10/10
Tags:
family:mirai defense_evasion discovery execution linux persistence privilege_escalation
Behaviour
Command and Scripting Interpreter: Unix Shell
Reads runtime system information
System Network Configuration Discovery
Writes file to shm directory
Writes file to tmp directory
Changes its process name
Modifies Bash startup script
Creates/modifies Cron job
Creates/modifies environment variables
Deletes log files
Enumerates running processes
Looks up external IP address via web service
Modifies init.d
Modifies rc script
Write file to user bin folder
Executes dropped EXE
Verdict:
Malicious
Tags:
trojan gafgyt Unix.Trojan.Mirai-7640640-0
YARA:
Linux_Trojan_Gafgyt_9e9530a7 Linux_Trojan_Gafgyt_807911a2 Linux_Trojan_Gafgyt_d4227dbf Linux_Trojan_Gafgyt_d996d335 Linux_Trojan_Gafgyt_620087b9 Linux_Trojan_Gafgyt_33b4111a
Malware family:
Mirai
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.93
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: | ach_202503_elf_Mirai |
|---|---|
| Author: | abuse.ch |
| Description: | Detects Mirai 'TSource' ELF files |
| Rule name: | ELF_IoT_Persistence_Hunt |
|---|---|
| Author: | 4r4 |
| Description: | Hunts for ELF files with persistence and download capabilities |
| Rule name: | ELF_Toriilike_persist |
|---|---|
| Author: | 4r4 |
| Description: | Detects Torii IoT Botnet (stealthier Mirai alternative) |
| Reference: | Identified via researched data |
| Rule name: | enterpriseapps2 |
|---|---|
| Author: | Tim Brown @timb_machine |
| Description: | Enterprise apps |
| Rule name: | Linux_Trojan_Gafgyt_33b4111a |
|---|---|
| Author: | Elastic Security |
| Rule name: | Linux_Trojan_Gafgyt_620087b9 |
|---|---|
| Author: | Elastic Security |
| Rule name: | Linux_Trojan_Gafgyt_807911a2 |
|---|---|
| Author: | Elastic Security |
| Rule name: | Linux_Trojan_Gafgyt_9e9530a7 |
|---|---|
| Author: | Elastic Security |
| Rule name: | Linux_Trojan_Gafgyt_d4227dbf |
|---|---|
| Author: | Elastic Security |
| Rule name: | Linux_Trojan_Gafgyt_d996d335 |
|---|---|
| Author: | Elastic Security |
| Rule name: | unixredflags3 |
|---|---|
| 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
Delivery method
Distributed via web download
Comments
Login required
You need to login to in order to write a comment. Login with your abuse.ch account.