MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 81ea2a392b6d71c7cd381f48ebffb992457a1d3897d1484a3fd7823f2e9f69a3. 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: | 81ea2a392b6d71c7cd381f48ebffb992457a1d3897d1484a3fd7823f2e9f69a3 |
|---|---|
| SHA3-384 hash: | 040c229fcc3981422ea804f696212228c7f70e7bfc2df808bacf5b4bdf73e6a3d0b269db74135ec1a90d2a016e3ce3e8 |
| SHA1 hash: | 537a491b49e4689c71f9d29e491bc69ff7a55359 |
| MD5 hash: | ac1b52b71229469fa2a87ea8a11db607 |
| humanhash: | mexico-nitrogen-hot-cup |
| File name: | bot.arm7 |
| Download: | download sample |
| Signature | Mirai |
| File size: | 727'832 bytes |
| First seen: | 2026-08-05 13:26:55 UTC |
| Last seen: | 2026-08-05 17:58:27 UTC |
| File type: | elf |
| MIME type: | application/x-executable |
| ssdeep | 12288:x4xXFvRgupko1XXNaoULyQu4wC5iizYFz0T9aLfAEHa9Ss8ptX1y:uRKoFLPQsZizYFz0rwj |
| TLSH | T196F49F88E2F2F7CEE198E9352205BC065D62863731D37789724BA5B3317A1754BF8B60 |
| Magika | elf |
| Reporter |  abuse_ch |
| Tags: | elf mirai |
Intelligence
File Origin
# of uploads :
3
# of downloads :
89
Origin country :
DEVendor Threat Intelligence
No detections
Result
Verdict:
Malware
Maliciousness:
Behaviour
Manages services
Launching a process
Runs as daemon
Opens a port
Creates or modifies symbolic links
Creating a file
Creating a file in the %temp% subdirectories
Creating a file in the %temp% directory
Sets a written file as executable
Connection attempt
Changes access rights for a written file
Kills processes
Changes the time when the file was created, accessed, or modified
Creates directories
DNS request
Creates or modifies files in /cron to set up autorun
Writes files to system directory
Traces processes
Substitutes an application name
Creates or modifies files to set up autorun
Creates or modifies symbolic links in /init.d to set up autorun
Creates or modifies files in /init.d to set up autorun
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
base64 expand gcc lolbin masquerade mirai obfuscated
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
arm
Packer:
custom
Botnet:
unknown
Number of open files:
0
Number of processes launched:
0
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.32.le
First seen:
2026-08-05T11:16:00Z UTC
Last seen:
2026-08-05T20:47:00Z UTC
Hits:
~10
Status:
terminated
Behavior Graph:
Verdict:
Unknown
Score:
100%
Verdict:
Malware
File Type:
ELF
Threat name:
Linux.Exploit.CVE-2026-43284
Status:
Malicious
First seen:
2026-08-05 13:27:33 UTC
File Type:
ELF32 Little (Exe)
AV detection:
12 of 24 (50.00%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
n/a
Score:
7/10
Tags:
defense_evasion discovery execution persistence privilege_escalation
Behaviour
Reads runtime system information
Writes file to shm directory
Writes file to tmp directory
Changes its process name
Creates a desktop entry file
Modifies Bash startup script
Creates/modifies Cron job
Creates/modifies environment variables
Deletes log files
Modifies init.d
Modifies rc script
Modifies systemd
Write file to user bin folder
Writes file to system bin folder
Executes dropped EXE
Modifies Watchdog functionality
Traces itself
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: | enterpriseapps2 |
|---|---|
| Author: | Tim Brown @timb_machine |
| Description: | Enterprise apps |
| Rule name: | EXPL_HKTL_LNX_DirtyFragShellcode_May26 |
|---|---|
| Author: | Pezier Pierre-Henri (Nextron Systems) |
| Description: | Detects a shellcode observed in dirtyfrag, a local privilege escalation exploit for Linux. |
| Reference: | https://github.com/V4bel/dirtyfrag/tree/master |
| Rule name: | EXPL_LNX_DirtyFrag_ForensicArtefacts_May26 |
|---|---|
| Author: | Florian Roth |
| Description: | Detects DirtyFrag exploit code POC usage in Linux environments |
| Reference: | https://github.com/V4bel/dirtyfrag/tree/master |
| Rule name: | F01_s1ckrule |
|---|---|
| Author: | s1ckb017 |
| Rule name: | linux_generic_ipv6_catcher |
|---|---|
| Author: | @_lubiedo |
| Description: | ELF samples using IPv6 addresses |
| Rule name: | linux_generic_irc_catcher |
|---|---|
| Author: | @_lubiedo |
| Description: | Find new ELF IRC samples |
| Rule name: | malwareelf55503 |
|---|
| Rule name: | RANSOMWARE |
|---|---|
| Author: | ToroGuitar |
| Rule name: | setsockopt |
|---|---|
| Author: | Tim Brown @timb_machine |
| Description: | Hunts for setsockopt() red flags |
| Rule name: | SHA512_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for SHA384/SHA512 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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