MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f19bfc2ae4fa172b128778a33eba86f3da58c8ee9666cbfed5958d7a1ae1b16f. 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: 11


Intelligence 11 IOCs YARA 19 File information Comments

SHA256 hash: f19bfc2ae4fa172b128778a33eba86f3da58c8ee9666cbfed5958d7a1ae1b16f
SHA3-384 hash: 6e6372a4eab17fc09bd286737a766c378f05ddb2d72afad94e9dda8f2d5ab12f315aac16393b1b3aeee60f5936545ea3
SHA1 hash: 4ea808a3c1e1f98ac9e4ce5a2dc2b9cab1ffd722
MD5 hash: 24e80ec2f6e93a8d0853fa9ee084cc7d
humanhash: north-salami-idaho-montana
File name:nz.x86_64
Download: download sample
Signature Mirai
File size:117'744 bytes
First seen:2026-07-07 14:35:02 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:IHoE9uzAHZeQ9eAT9kkzqN6EGCvR0MeITI8IunXYToYe:IIE4zAHZeQ9XT9kKmWMeKIIXYToYe
TLSH T1CBB31907BDC18DFDC089C038477F753ED822F0ED0239B2AB67D4AE262D5DEA11A19A55
telfhash t1cb2177b03ed27a5c20c3d39ab35ede7ae0b209241a92b1e58f0b6dd98e06fc80c41456
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 upx-dec


Avatar
abuse_ch
UPX decompressed file, sourced from SHA256 b20e49f6d9416a175f4ec11014ae4f840c8ee37c6d62de2a54d5c5aab320ba98
File size (compressed) :49'508 bytes
File size (de-compressed) :117'744 bytes
Format:linux/amd64
Packed file: b20e49f6d9416a175f4ec11014ae4f840c8ee37c6d62de2a54d5c5aab320ba98

Intelligence


File Origin
# of uploads :
1
# of downloads :
26
Origin country :
NL NL
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Runs as daemon
Sends data to a server
Receives data from a server
Connection attempt
Opens a port
DNS request
Verdict:
Malicious
File Type:
elf.64.le
First seen:
2026-07-07T12:07:00Z UTC
Last seen:
2026-07-08T00:06:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Mirai.cw HEUR:Backdoor.Linux.Mirai.b HEUR:Backdoor.Linux.Gafgyt.bl HEUR:Backdoor.Linux.Gafgyt.bj HEUR:Backdoor.Linux.Mirai.r HEUR:Backdoor.Linux.Mirai.h
Threat name:
Linux.Worm.Mirai
Status:
Malicious
First seen:
2026-07-07 15:02:36 UTC
File Type:
ELF64 Little (Exe)
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:mirai botnet defense_evasion discovery linux
Behaviour
Reads runtime system information
Enumerates running processes
Writes file to system bin folder
Modifies Watchdog functionality
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_Mirai
Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:ELF_Toriilike_persist
Author:4r4
Description:Detects Torii IoT Botnet (stealthier Mirai alternative)
Reference:Identified via researched data
Rule name:linux_generic_ipv6_catcher
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Linux_Trojan_Gafgyt_0cd591cd
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_28a2fe0c
Author:Elastic Security
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_a33a8363
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_d4227dbf
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_d996d335
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_6a77af0f
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_e0cf29e2
Author:Elastic Security
Rule name:meth_stackstrings
Author:Willi Ballenthin
Rule name:SUSP_XORed_Mozilla_Oct19
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
Author:Florian Roth
Description:Detects suspicious XORed keyword - Mozilla/5.0
Reference:Internal Research
Rule name:TH_Generic_MassHunt_Linux_Malware_2026_CYFARE
Author:CYFARE
Description:Generic Linux malware mass-hunt rule - 2026
Reference:https://cyfare.net/
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

Mirai

elf f19bfc2ae4fa172b128778a33eba86f3da58c8ee9666cbfed5958d7a1ae1b16f

(this sample)

  
Delivery method
Distributed via web download

Comments