MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b6537837be693eaf0c6c1b89c5d0b234ff70281a18cbdb67de4a10cf2f931c86. 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: 9

Intelligence 9 IOCs YARA 6 File information Comments

SHA256 hash:	b6537837be693eaf0c6c1b89c5d0b234ff70281a18cbdb67de4a10cf2f931c86
SHA3-384 hash:	a92a78b3944da228e367134efc9e8b6c5cb11865c007bca34e60515378af96d207d083ae8a04ab9d503cb54294b59602
SHA1 hash:	59af9be7675e7e0f29aa65de0bdcc823265f85b7
MD5 hash:	8a0f71ddb2b69a24c1ea448f6c8caf81
humanhash:	vermont-idaho-spring-july
File name:	zerobot.mips
Download:	download sample
Signature	Mirai Create hunting rule
File size:	253'372 bytes
First seen:	2026-10-23 12:52:27 UTC
Last seen:	Never
File type:	elf
MIME type:	application/x-executable
ssdeep	6144:M0FsGbxo2F9nClS8tqieEelQA7UVc4zIOIQuSvAvIWT/:MmVrsc3Ew7UVOOQuAvzT/
TLSH	T1694423C70B4B2882C213AE24E7396C7E529E583A095E6D99D241DB3D20BB1DFC31674F
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

UPX packed

This file is packed with UPX. We have therefore unpacked the file. Below is furhter information about the unpacked (de-compressed) file.

File size (compressed) :	253'372 bytes
File size (de-compressed) :	676'052 bytes
Format:	linux/mips
Unpacked file:	48feb730268531e7c900cada988b241b0a4bcd9ac61b05fa7261208fc6bb6233

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

Details

Link:

https://research.acce.ciphertechsolutions.com/results/33e5ed99-bdff-4462-9343-d5ccaf6f82ee/

Detection(s):

Unix.Tool.Flood-9938486-0

Result

Verdict:

Malware

Maliciousness:

Behaviour

Kills processes

Connection attempt

Changes the time when the file was created, accessed, or modified

Creating a file

Creating a process from a recently created file

Launching a process

Opens a port

Sends data to a server

Sets a written file as executable

Receives data from a server

Runs as daemon

Changes access rights for a written file

Manages services

Creates or modifies files in /cron to set up autorun

Substitutes an application name

Verdict:

Unknown

Threat level:

2.5/10

Confidence:

100%

Tags:

masquerade packed upx

Link:

https://www.filescan.io/uploads/6adb58db9be2802f2f7bd9fb/reports/8474116a-a45a-40bd-b156-0e49cbea287b/overview

Verdict:

Malicious

File Type:

elf.32.be

First seen:

2026-10-23T10:28:00Z UTC

Last seen:

2026-10-24T18:19:00Z UTC

Hits:

~10

Link:

https://opentip.kaspersky.com/b6537837be693eaf0c6c1b89c5d0b234ff70281a18cbdb67de4a10cf2f931c86/results?tab=lookup

Status:

terminated

Link:

https://sandbox.kunai.rocks/analysis/31d12e3f-aba5-481a-968f-cc122038627f

Behavior Graph:

Download SVG

Verdict:

Unknown

Link:

https://analyze.intezer.com/analyses/23dee99f-4164-4d59-9871-7cfb7329cc3a

Score:

100%

Verdict:

Malware

File Type:

ELF

Link:

https://malprob.io/report/b6537837be693eaf0c6c1b89c5d0b234ff70281a18cbdb67de4a10cf2f931c86

Detection:

mirai

Link:

https://mwdb.cert.pl/sample/b6537837be693eaf0c6c1b89c5d0b234ff70281a18cbdb67de4a10cf2f931c86/

Threat name:

Linux.Trojan.Multiverze

Status:

Malicious

First seen:

2026-10-23 00:48:22 UTC

File Type:

ELF32 Big (Exe)

AV detection:

17 of 38 (44.74%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=wzjxqn56ne7k6ddmdoe4lufsgt7xaka2ddf5wz66jiim6l4tdsda._file

Result

Malware family:

mirai

Score:

10/10

Tags:

family:mirai botnet defense_evasion discovery execution persistence privilege_escalation upx

Link:

https://tria.ge/reports/261023-p4s2tadz7j/

Behaviour

Enumerates kernel/hardware configuration

Reads runtime system information

System Network Configuration Discovery

Changes its process name

Reads system network configuration

UPX packed file

Creates/modifies Cron job

Enumerates active TCP sockets

Enumerates running processes

Modifies systemd

Writes file to system bin folder

Executes dropped EXE

Modifies Watchdog functionality

Contacts a large (45601) amount of remote hosts

Creates a large amount of network flows

Family: Mirai

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/b6537837be693eaf0c6c1b89c5d0b234ff70281a18cbdb67de4a10cf2f931c86

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_IoT_DVR_Botnet_Hama_UPX Create hunting rule
Author:	Serhii Kocherhan
Description:	Detects packed and unpacked ELF IoT/DVR botnet variants targeting UPX compression structures and uncompressed code

Rule name:	exploit_any_poppopret Create hunting rule
Author:	Jeff White [karttoon@gmail.com] @noottrak
Description:	Identify POP -> POP -> RET opcodes for quick ROP Gadget creation in target binaries.

Rule name:	linux_generic_ipv6_catcher Create hunting rule
Author:	@_lubiedo
Description:	ELF samples using IPv6 addresses

Rule name:	SUSP_ELF_LNX_UPX_Compressed_File Create hunting rule
Author:	Florian Roth (Nextron Systems)
Description:	Detects a suspicious ELF binary with UPX compression
Reference:	Internal Research

Rule name:	TH_Generic_MassHunt_Linux_Malware_2026_CYFARE Create hunting rule
Author:	CYFARE
Description:	Generic Linux malware mass-hunt rule - 2026
Reference:	https://cyfare.net/