MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 d91f99d362808c7df2f82467c6ae8d7351150331f0b63c3a324b396cd1b4908f. 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: 8
| SHA256 hash: | d91f99d362808c7df2f82467c6ae8d7351150331f0b63c3a324b396cd1b4908f |
|---|---|
| SHA3-384 hash: | b0a9cdc71320d44c5964b9aea77d34e6ffc85eef1ca171a53cb3fd26d87b5de38cd0d4b32fedbe809fb6b6f8f0ba8cfe |
| SHA1 hash: | a74a769065b4e120f5d41641adf609dd80c48ac8 |
| MD5 hash: | 0fbd4e1853f6cb40853dcf668d6f7a38 |
| humanhash: | november-three-early-green |
| File name: | mips |
| Download: | download sample |
| Signature | Mirai |
| File size: | 290'152 bytes |
| First seen: | 2026-08-18 13:58:36 UTC |
| Last seen: | Never |
| File type: | elf |
| MIME type: | application/x-executable |
| ssdeep | 6144:02zmXCSZ0ZapFKKAs9QCHF20EEssMOgh5olG4XD:H8p998EssMOgh5olDz |
| TLSH | T1BA54D71A2E728F3EF2698B3547F74A25975822D713E5D640F1ACD1101F2029EA46FFE8 |
| telfhash | t19741821c0e7817b0a3656c4d05adff36d5a320db7f162c278e51e8aaab69f839d14d0c |
| Magika | elf |
| Reporter |  abuse_ch |
| Tags: | elf mirai |
Intelligence
File Origin
# of uploads :
1
# of downloads :
66
Origin country :
DEVendor Threat Intelligence
No detections
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a file
Collects information on the network activity
Launching a process
Sends data to a server
Creates directories in a temporary directory
Runs as daemon
Kills processes
Creating a file in the %temp% subdirectories
Connection attempt
Creating a file in the %temp% directory
Deleting a recently created file
Creates directories in a subdirectory of a temporary directory
Receives data from a server
Removes directories from a subdirectory of a temporary directory
Collects information on the OS
Creates or modifies files in /cron to set up autorun
Substitutes an application name
Deleting of the original file
Creates or modifies files in /init.d to set up autorun
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
mirai
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
mips
Packer:
not packed
Botnet:
unknown
Number of open files:
90
Number of processes launched:
22
Processes remaning?
true
Remote TCP ports scanned:
23,80,8080,8081,8082,8083,8084,8085,8086,8087,8088,8089
Full report:
Behaviour
Persistence
Process Renaming
Information Gathering
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Status:
terminated
Behavior Graph:
Verdict:
Unknown
Score:
100%
Verdict:
Malware
File Type:
ELF
Threat name:
Linux.Backdoor.Mirai
Status:
Malicious
First seen:
2026-08-18 14:03:56 UTC
File Type:
ELF32 Big (Exe)
AV detection:
12 of 36 (33.33%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
n/a
Score:
9/10
Tags:
discovery execution persistence privilege_escalation
Behaviour
Command and Scripting Interpreter: Unix Shell
Reads runtime system information
System Network Configuration Discovery
Writes file to tmp directory
Changes its process name
Creates/modifies Cron job
Enumerates running processes
Modifies init.d
Deletes itself
Contacts a large (227401) amount of remote hosts
Creates a large amount of network flows
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
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: | CP_Script_Inject_Detector |
|---|---|
| Author: | DiegoAnalytics |
| Description: | Detects attempts to inject code into another process across PE, ELF, Mach-O binaries |
| Rule name: | ELF_Toriilike_persist |
|---|---|
| Author: | 4r4 |
| Description: | Detects Torii IoT Botnet (stealthier Mirai alternative) |
| Reference: | Identified via researched data |
| Rule name: | F01_s1ckrule |
|---|---|
| Author: | s1ckb017 |
| Rule name: | linux_generic_ipv6_catcher |
|---|---|
| Author: | @_lubiedo |
| Description: | ELF samples using IPv6 addresses |
| Rule name: | Linux_Rootkit_Generic_61229bdf |
|---|---|
| Author: | Elastic Security |
| Rule name: | SUSP_LNX_Linux_Malware_Indicators_Aug20_1 |
|---|---|
| Author: | Florian Roth (Nextron Systems) |
| Description: | Detects indicators often found in linux malware samples. Note: This detection is based on common characteristics typically associated with the mentioned threats, must be considered a clue and does not conclusively prove maliciousness. |
| Reference: | Internal Research |
| Rule name: | SUSP_LNX_Linux_Malware_Indicators_Aug20_1_RID3621 |
|---|---|
| Author: | Florian Roth |
| Description: | Detects indicators often found in linux malware samples |
| 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
Delivery method
Distributed via web download
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