MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 b33b272fe3e00166b7a6eecc26eff8a6dba5bf74e21733840907823e413a8680. 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
Gafgyt
Vendor detections: 8
| SHA256 hash: | b33b272fe3e00166b7a6eecc26eff8a6dba5bf74e21733840907823e413a8680 |
|---|---|
| SHA3-384 hash: | b9cc3c809eebafe7c6442437096aeac888c8e0af77a9ba82aceefafe80fe7df76c60e506046a0095ef54eb6278c3ebee |
| SHA1 hash: | 3163f6ec23ac1ca0d67d27804220d498228e71da |
| MD5 hash: | 17f8567b0bcc8365a6df920a8a83c335 |
| humanhash: | two-one-winter-south |
| File name: | bot.x86_64 |
| Download: | download sample |
| Signature | Gafgyt |
| File size: | 75'080 bytes |
| First seen: | 2026-05-13 19:18:12 UTC |
| Last seen: | 2026-05-14 05:20:47 UTC |
| File type: | elf |
| MIME type: | application/x-executable |
| ssdeep | 1536:HXPErNu/a6D5cr7xsDeD9kgJBtBuDerEgbQ7zTVEYyxSAb/K23na6VhNp3KIDZI/:HXUk/9CJsDeOgrGD1VQfyS7+ |
| TLSH | T1AC734902F9E250BCC446D071475FAB26EB71B84843257BDF67C87AB13E66E902F5A360 |
| telfhash | t1a311e104c2d819ac2bfe59b3a6847e4b98b310d610d97dda636cd7060c54fd33b08132 |
| Magika | elf |
| Reporter |  abuse_ch |
| Tags: | elf gafgyt |
Intelligence
File Origin
# of uploads :
2
# of downloads :
47
Origin country :
DEVendor Threat Intelligence
No detections
Detection(s):
Result
Verdict:
Malware
Maliciousness:
Behaviour
Launching a process
Runs as daemon
Opens a port
Creating a file
Receives data from a server
Sets a written file as executable
Creating a file in the %temp% directory
Changes the time when the file was created, accessed, or modified
Changes access rights for a written file
Sends data to a server
Creating a process from a recently created file
Connection attempt
Manages services
Creates or modifies files in /cron to set up autorun
Substitutes an application name
Creates or modifies symbolic links in /init.d to set up autorun
Creates or modifies files in /init.d to set up autorun
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
not packed
Botnet:
unknown
Number of open files:
148
Number of processes launched:
68
Processes remaning?
true
Remote TCP ports scanned:
not identified
Full report:
Behaviour
Persistence
Process Renaming
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Status:
terminated
Behavior Graph:
Verdict:
Unknown
Result
Threat name:
Mirai, Gafgyt
Detection:
malicious
Classification:
spre.troj.evad
Score:
100 / 100
Signature
Antivirus detection for dropped file
Connects to many ports of the same IP (likely port scanning)
Detected Mirai
Drops files in suspicious directories
Executes the "crontab" command typically for achieving persistence
Found malware configuration
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample deletes itself
Sample tries to kill a massive number of system processes
Sample tries to kill multiple processes (SIGKILL)
Sample tries to persist itself using cron
Sample tries to persist itself using System V runlevels
Sample tries to set files in /etc globally writable
Suricata IDS alerts for network traffic
Uses dynamic DNS services
Yara detected Gafgyt
Behaviour
Behavior Graph:
Score:
100%
Verdict:
Malware
File Type:
ELF
Detection(s):
Suspicious file
Result
Malware family:
n/a
Score:
7/10
Tags:
credential_access defense_evasion discovery execution linux persistence privilege_escalation
Behaviour
Reads runtime system information
System Network Configuration Discovery
Writes file to tmp directory
Changes its process name
Reads process memory
Creates/modifies Cron job
Enumerates running processes
Modifies init.d
Modifies rc script
Modifies systemd
File and Directory Permissions Modification
Deletes itself
Executes dropped EXE
Unexpected DNS network traffic destination
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.90
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_Persistence_Hunt |
|---|---|
| Author: | 4r4 |
| Description: | Hunts for ELF files with persistence and download capabilities |
| Rule name: | linux_generic_ipv6_catcher |
|---|---|
| Author: | @_lubiedo |
| Description: | ELF samples using IPv6 addresses |
| 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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