MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 46cfad24a61fd8087b5c28c438e8cee7b42f0bfeb471d55e0a5d3e2f14b070cb. 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
| SHA256 hash: | 46cfad24a61fd8087b5c28c438e8cee7b42f0bfeb471d55e0a5d3e2f14b070cb |
|---|---|
| SHA3-384 hash: | 0bdc35c830927582d9fe9555fa7553278674f91f6a530f7dd2a9ca20aeaa13b642fe4d2610d17e1cafa579769c905e14 |
| SHA1 hash: | 8e42add60dc5432f58533c31b1e0b119289077a1 |
| MD5 hash: | 6567ef574c33a879033a082fa3ba9bf3 |
| humanhash: | jersey-delta-cardinal-happy |
| File name: | kworkerd |
| Download: | download sample |
| Signature | Mirai |
| File size: | 294'152 bytes |
| First seen: | 2026-07-11 15:04:34 UTC |
| Last seen: | 2026-07-12 09:32:44 UTC |
| File type: | elf |
| MIME type: | application/x-executable |
| ssdeep | 6144:GcViMFwCX6C6HmpnwLc3g+bmbTRYqxyPXTqQlz78:GLMFX6xmpnwLc3sTRmqQlH8 |
| TLSH | T1E9544B03658095B6C483E0B6CBDFA2235A61783D5C3A724A27E0BF667F56DF05B19B03 |
| telfhash | t17ba1ec3419d2314072e396817346c72a9d390c18d3ee7ae6abd2fcf9eccb5c58c61866 |
| 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 |
Intelligence
File Origin
# of uploads :
2
# of downloads :
63
Origin country :
DEVendor Threat Intelligence
No detections
Detection(s):
Result
Verdict:
Malware
Maliciousness:
Behaviour
Launching a process
Manages services
Runs as daemon
Opens a port
Creating a file
Sets a written file as executable
Creating a file in the %temp% directory
Collects information on the CPU
Connection attempt
Receives data from a server
Changes access rights for a written file
Kills processes
Changes the time when the file was created, accessed, or modified
Deleting a recently created file
Sends data to a server
Creates or modifies files in /cron to set up autorun
Writes files to system directory
Substitutes an application name
Creates or modifies files to set up autorun
Deleting of the original file
Creates or modifies files in /init.d to set up autorun
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
base64 bashlite dropper gcc mirai
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
not packed
Botnet:
unknown
Number of open files:
0
Number of processes launched:
1
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
Behaviour
no suspicious findings
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.64.le
First seen:
2026-07-11T03:24:00Z UTC
Last seen:
2026-07-12T00:40:00Z UTC
Hits:
~10
Status:
terminated
Behavior Graph:
Verdict:
Unknown
Result
Threat name:
Mirai, Xmrig
Detection:
malicious
Classification:
spre.troj.spyw.evad.mine
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Drops files in suspicious directories
Drops invisible ELF files
Executes itself again with its parent PID as an argument (indicative of hampering debugging)
Executes the "crontab" command typically for achieving persistence
Found strings related to Crypto-Mining
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Opens /sys/class/net/* files useful for querying network interface information
Reads system files that contain records of logged in users
Sample deletes itself
Sample reads /proc/mounts (often used for finding a writable filesystem)
Sample tries to kill multiple processes (SIGKILL)
Sample tries to persist itself using /etc/profile
Sample tries to persist itself using cron
Sample tries to set files in /etc globally writable
Writes identical ELF files to multiple locations
Yara detected Mirai
Yara detected Xmrig cryptocurrency miner
Behaviour
Behavior Graph:
Score:
100%
Verdict:
Malware
File Type:
ELF
Threat name:
Linux.Worm.Mirai
Status:
Malicious
First seen:
2026-07-11 08:16:09 UTC
File Type:
ELF64 Little (Exe)
AV detection:
14 of 36 (38.89%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
n/a
Score:
7/10
Tags:
antivm credential_access defense_evasion discovery execution linux persistence privilege_escalation
Behaviour
Enumerates kernel/hardware configuration
Reads runtime system information
Writes file to shm directory
Writes file to tmp directory
Changes its process name
Checks CPU configuration
Reads system network configuration
Modifies Bash startup script
Reads process memory
Creates/modifies Cron job
Creates/modifies environment variables
Enumerates active TCP sockets
Enumerates running processes
Modifies init.d
Modifies systemd
Reads MAC address of network interface
Write file to user bin folder
File and Directory Permissions Modification
Deletes itself
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: | enterpriseapps2 |
|---|---|
| Author: | Tim Brown @timb_machine |
| Description: | Enterprise apps |
| 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_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_d0c57a2e |
|---|---|
| Author: | Elastic Security |
| Rule name: | Linux_Trojan_Gafgyt_d4227dbf |
|---|---|
| Author: | Elastic Security |
| Rule name: | Linux_Trojan_Gafgyt_d996d335 |
|---|---|
| Author: | Elastic Security |
| Rule name: | RIPEMD160_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for RIPEMD-160 constants |
| Rule name: | SHA1_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for SHA1 constants |
| 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
Delivery method
Distributed via web download
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