MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 99be3e90783b168d17c5f8b873d6155abd988815a4efdf20006d6380c8a2a178. 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: 7


Intelligence 7 IOCs YARA 9 File information Comments

SHA256 hash: 99be3e90783b168d17c5f8b873d6155abd988815a4efdf20006d6380c8a2a178
SHA3-384 hash: 36a42c03e24005ebd0d3942d0f0132e2e86451a29a2d015a07064c7f3cac61b4e30f5ecee9d11d2fb9845afa9e77fe70
SHA1 hash: 4333c917264b10a6ef1ed3f84702dc875f08e4d3
MD5 hash: da469f51f84614d53da7411558b426b7
humanhash: fruit-leopard-aspen-eleven
File name:db0fa4b8db0333367e9bda3ab68b8042.arc
Download: download sample
Signature Mirai
File size:75'132 bytes
First seen:2026-04-08 16:06:43 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 768:GgUWix2EZgU/5h2hZg+OTvKZg0Kn13NZAf+/W4LzLU8JIoPiWs4ldX2ZvB:XUWdEZgTAjTg23ZAf+/WSJJXPih0
TLSH T185732AB41A96B27CEDF140B8F85720D624A20A1C3BACD2E3A5C7503AFF75B0C7169D55
telfhash t1cae02600ec6a8a6c5ccb9e749d9c07bce90162025566c710df10d7e4c83f464a319b5f
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 :
1
# of downloads :
93
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
gcc masquerade mirai obfuscated obfuscated threat
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-04-08T13:15:00Z UTC
Last seen:
2026-04-09T00:22:00Z UTC
Hits:
~10
Status:
terminated
Behavior Graph:
%3 guuid=48e8b6bd-1b00-0000-7ad2-6fa35e090000 pid=2398 /usr/bin/sudo guuid=5db333c0-1b00-0000-7ad2-6fa365090000 pid=2405 /tmp/sample.bin guuid=48e8b6bd-1b00-0000-7ad2-6fa35e090000 pid=2398->guuid=5db333c0-1b00-0000-7ad2-6fa365090000 pid=2405 execve
Threat name:
Linux.Worm.Mirai
Status:
Malicious
First seen:
2026-04-08 16:07:55 UTC
File Type:
ELF32 Little (Exe)
AV detection:
23 of 36 (63.89%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  1/10
Tags:
linux
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:CVE_2017_17215
Author:NDA0E
Description:Detects exploitation attempt of CVE-2017-17215
Rule name:ELF_Mirai
Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:MAL_ELF_LNX_Mirai_Oct10_1
Author:Florian Roth (Nextron Systems)
Description:Detects ELF Mirai variant
Reference:Internal Research
Rule name:MAL_ELF_LNX_Mirai_Oct10_1_RID2F39
Author:Florian Roth
Description:Detects ELF Mirai variant
Reference:Internal Research
Rule name:setsockopt
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
Rule name:SUSP_XORed_Mozilla_Oct19
Author:Florian Roth
Description:Detects suspicious single byte XORed keyword 'Mozilla/5.0' - it uses yara's XOR modifier and therefore cannot print the XOR key. You can use the CyberChef recipe linked in the reference field to brute force the used key.
Reference:https://gchq.github.io/CyberChef/#recipe=XOR_Brute_Force()
Rule name:SUSP_XORed_Mozilla_RID2DB4
Author:Florian Roth
Description:Detects suspicious XORed keyword - Mozilla/5.0
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

Mirai

elf 99be3e90783b168d17c5f8b873d6155abd988815a4efdf20006d6380c8a2a178

(this sample)

  
Delivery method
Distributed via web download

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