MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 b4951d87ca99c0d86d7d04d2c23846d0d954015b3a7a963cd818af36d320290f. 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: | b4951d87ca99c0d86d7d04d2c23846d0d954015b3a7a963cd818af36d320290f |
|---|---|
| SHA3-384 hash: | 18a9f056e379573e032bf5fa95388a4ffc7a1fe67c823f4adabcb9488ec8a3339162c6ea3b85bad934b3efcff278c869 |
| SHA1 hash: | 3220b2e2d1dc71d99d96b6f799cc8c1fce263e7f |
| MD5 hash: | 8c39cee549d08f51cd7cd1b9cd2e58ad |
| humanhash: | virginia-oxygen-eleven-mirror |
| File name: | arm7 |
| Download: | download sample |
| Signature | Mirai |
| File size: | 365'964 bytes |
| First seen: | 2026-10-29 10:59:29 UTC |
| Last seen: | 2026-10-30 08:31:28 UTC |
| File type: | elf |
| MIME type: | application/x-executable |
| ssdeep | 6144:Y+HdJUXqovvrOOfnzdYFaavGwWNLGxwaRPa98/:SX/rOO/zdqCLQwWa98/ |
| TLSH | T117740A88A1F0E7DED2D4EA75B319780D3B630736B1DB3146A51DAA3323EB1450AFD921 |
| telfhash | t11ff0c021cb7434f5e3e7c44a6211e12d856d3d28339025e68bc9360f8e246c004f6d33 |
| Magika | elf |
| Reporter |  abuse_ch |
| Tags: | elf mirai |
Intelligence
File Origin
# of uploads :
4
# of downloads :
93
Origin country :
DEVendor Threat Intelligence
No detections
Verdict:
Unknown
Threat level:
0/10
Confidence:
100%
Tags:
base64 expand gcc lolbin rust
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
arm
Packer:
not packed
Botnet:
unknown
Number of open files:
5
Number of processes launched:
0
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
Behaviour
Anti-Debugging
Information Gathering
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-10-28T22:43:00Z UTC
Last seen:
2026-10-30T18:33:00Z UTC
Hits:
~10
Status:
terminated
Behavior Graph:
Verdict:
Suspicious
Score:
100%
Verdict:
Malware
File Type:
ELF
Threat name:
Linux.Exploit.DirtyFrag
Status:
Malicious
First seen:
2026-10-29 11:00:32 UTC
File Type:
ELF32 Little (Exe)
AV detection:
11 of 24 (45.83%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
mirai
Score:
10/10
Tags:
family:mirai antivm botnet discovery
Behaviour
Reads runtime system information
Writes file to tmp directory
Changes its process name
Checks CPU configuration
Traces itself
Unexpected DNS network traffic destination
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_IoT_Persistence_Hunt |
|---|---|
| Author: | 4r4 |
| Description: | Hunts for ELF files with persistence and download capabilities |
| Rule name: | ELF_Packer_Dropper_Fileless_Armhf |
|---|---|
| Author: | Serhii Kocherhan |
| Description: | Detects obfuscated Linux ELF packers/droppers featuring ChaCha20/RC4 decryption, memfd_create/execveat fileless execution capabilities, and unique binary artifacts. |
| 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: | linux_generic_ipv6_catcher |
|---|---|
| Author: | @_lubiedo |
| Description: | ELF samples using IPv6 addresses |
| Rule name: | linux_generic_ipv6_variants_catcher |
|---|---|
| Author: | @_lubiedo |
| Description: | Find IPv6 capable malware for a set of IoT variants |
| Rule name: | linux_generic_irc_catcher |
|---|---|
| Author: | @_lubiedo |
| Description: | Find new ELF IRC samples |
| Rule name: | MIRAI_OHSHIT_payload |
|---|---|
| Author: | AfterPacket |
| Description: | MIRAI_OHSHIT ELF payload -- compiled-in C2 set, all architectures |
| Reference: | https://github.com/Afterpacket/drosera-threat-intel |
| Rule name: | NSVPS_Hydra_SSH_Bruteforce |
|---|---|
| Author: | sanad (NSVPS-SOC) |
| Description: | Hydra SSH brute-force campaign credentials pattern from NSVPS honeypot |
| 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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