MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 31991a90dd0c1446f8e209f0cbf9f0a4ea38914a0109e3cb2798b17c30f8cfef. 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: 10


Intelligence 10 IOCs YARA 14 File information Comments
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SHA256 hash: 31991a90dd0c1446f8e209f0cbf9f0a4ea38914a0109e3cb2798b17c30f8cfef
SHA3-384 hash: 8b5548a5f82da08307223b40c5095de41c9bd376417e980293015ce490760cb12e3c67c0b2a9fb867d3ef03fbb84b24d
SHA1 hash: 268c812b7047f32b5e96db2458a51d8b3800c3e9
MD5 hash: 728f802f74791c025e09f96f45b1506a
humanhash: october-maryland-cold-nevada
File name:assailant.i686
Download: download sample
Signature Gafgyt
Create hunting rule
File size:99'709 bytes
First seen:2026-01-20 14:52:09 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:aPaqjPQP39VjGWX98732V7kGyNVz5heTe7FXnf0OzTyoQQub:ahQP39VjGWXW9NVz5h+0FXnf0OzTyoQ7
TLSH T1D8A35B82D642C2F3C4430AF1029F965A0532FB3A8E3B9EAAF75D7CF49B129D53115B91
telfhash t11a21c14396f68b2c6fb3587468bc47a11552a6237260bf70af5ec1409d37006b579e8f
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 gafgyt

Intelligence

File Origin
# of uploads :
1
# of downloads :
26
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Detection(s):
Sanesecurity.Malware.30395.LC.UNOFFICIAL
Create hunting rule

Unix.Trojan.Gafgyt-6981154-0
Create hunting rule

Unix.Trojan.Gafgyt-6981156-0
Create hunting rule

Unix.Dropper.Mirai-7138855-0
Create hunting rule

Unix.Dropper.Mirai-7139223-0
Create hunting rule

Unix.Dropper.Mirai-7139232-0
Create hunting rule

Unix.Proxy.Mirai-7844054-0
Create hunting rule

Unix.Trojan.Mirai-9864781-0
Create hunting rule

Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
gcc masquerade
Link:
https://www.filescan.io/uploads/696f96b4f3c1b7b1fbd8452f/reports/32750050-35f0-4d93-8ada-128193c01d2b/overview
Result
Gathering data
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/e7b7bb37-94d6-4cdf-b772-b108a97883b9
Behavior Graph:
Download SVG
%3 guuid=598edaa1-1800-0000-49e5-cd2dda0d0000 pid=3546 /usr/bin/sudo guuid=4a6a94a3-1800-0000-49e5-cd2de10d0000 pid=3553 /tmp/sample.bin guuid=598edaa1-1800-0000-49e5-cd2dda0d0000 pid=3546->guuid=4a6a94a3-1800-0000-49e5-cd2de10d0000 pid=3553 execve guuid=bd23aba3-1800-0000-49e5-cd2de20d0000 pid=3554 /tmp/sample.bin guuid=4a6a94a3-1800-0000-49e5-cd2de10d0000 pid=3553->guuid=bd23aba3-1800-0000-49e5-cd2de20d0000 pid=3554 clone guuid=a544b1a3-1800-0000-49e5-cd2de30d0000 pid=3555 /tmp/sample.bin guuid=bd23aba3-1800-0000-49e5-cd2de20d0000 pid=3554->guuid=a544b1a3-1800-0000-49e5-cd2de30d0000 pid=3555 clone guuid=5203b9a3-1800-0000-49e5-cd2de40d0000 pid=3556 /tmp/sample.bin guuid=a544b1a3-1800-0000-49e5-cd2de30d0000 pid=3555->guuid=5203b9a3-1800-0000-49e5-cd2de40d0000 pid=3556 clone guuid=656ebca3-1800-0000-49e5-cd2de50d0000 pid=3557 /tmp/sample.bin net zombie guuid=a544b1a3-1800-0000-49e5-cd2de30d0000 pid=3555->guuid=656ebca3-1800-0000-49e5-cd2de50d0000 pid=3557 clone 541343aa-57ed-5077-abaa-43455d6f904e 178.16.52.166:42516 guuid=656ebca3-1800-0000-49e5-cd2de50d0000 pid=3557->541343aa-57ed-5077-abaa-43455d6f904e con guuid=ac0a38cc-2000-0000-49e5-cd2d93140000 pid=5267 /tmp/sample.bin net zombie guuid=656ebca3-1800-0000-49e5-cd2de50d0000 pid=3557->guuid=ac0a38cc-2000-0000-49e5-cd2d93140000 pid=5267 clone guuid=ac0a38cc-2000-0000-49e5-cd2d93140000 pid=5267->541343aa-57ed-5077-abaa-43455d6f904e con
Malware family:
Gafgyt
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/51bd51fb-b3cd-4303-828c-133564ad348b
Result
Threat name:
Gafgyt, Mirai
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
92 / 100
Link:
https://www.joesandbox.com/analysis/1854038
Signature
Antivirus / Scanner detection for submitted sample
Connects to many ports of the same IP (likely port scanning)
Found malware configuration
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected Gafgyt
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1854038 Sample: assailant.i686.elf Startdate: 20/01/2026 Architecture: LINUX Score: 92 43 178.16.52.166, 42516 DUSNET-ASDE Germany 2->43 45 185.125.190.26, 443 CANONICAL-ASGB United Kingdom 2->45 47 3 other IPs or domains 2->47 49 Found malware configuration 2->49 51 Malicious sample detected (through community Yara rule) 2->51 53 Antivirus / Scanner detection for submitted sample 2->53 55 4 other signatures 2->55 15 assailant.i686.elf 2->15         started        17 dash rm 2->17         started        19 dash grep 2->19         started        21 2 other processes 2->21 signatures3 process4 process5 23 assailant.i686.elf 15->23         started        process6 25 assailant.i686.elf 23->25         started        process7 27 assailant.i686.elf 25->27         started        29 assailant.i686.elf 25->29         started        process8 31 assailant.i686.elf 27->31         started        process9 33 assailant.i686.elf 31->33         started        process10 35 assailant.i686.elf 33->35         started        process11 37 assailant.i686.elf 35->37         started        process12 39 assailant.i686.elf 37->39         started        process13 41 assailant.i686.elf 39->41         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/31991a90dd0c1446f8e209f0cbf9f0a4ea38914a0109e3cb2798b17c30f8cfef
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/31991a90dd0c1446f8e209f0cbf9f0a4ea38914a0109e3cb2798b17c30f8cfef/
Threat name:
Linux.Trojan.Gafgyt
Create hunting rule
Status:
Malicious
First seen:
2026-01-20 14:53:28 UTC
File Type:
ELF32 Little (Exe)
AV detection:
27 of 36 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ggmrveg5bqken6hcbhymx6pqutvdrekkaee6hszhtcyxymhyz7xq._file
Result
Malware family:
gafgyt
Create hunting rule
Score:
  10/10
Tags:
family:gafgyt linux
Link:
https://tria.ge/reports/260120-r81csshs8a/
Behaviour
Changes its process name
Malware Config
C2 Extraction:
178.16.52.166:42516
Verdict:
Malicious
Tags:
trojan gafgyt Unix.Trojan.Gafgyt-6981154-0
YARA:
Linux_Trojan_Gafgyt_6122acdf Linux_Trojan_Gafgyt_30444846 Linux_Trojan_Gafgyt_f51c5ac3 Linux_Trojan_Gafgyt_27de1106 Linux_Trojan_Gafgyt_1b2e2a3a Linux_Trojan_Gafgyt_9127f7be elf_bashlite_auto
Link:
https://app.threat.zone/submission/cd31dd9f-17e1-4547-b570-5253ea25dda2
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.75
Link:
https://yomi.yoroi.company/submissions/31991a90dd0c1446f8e209f0cbf9f0a4ea38914a0109e3cb2798b17c30f8cfef

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
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:ELF_Toriilike_persist
Create hunting rule
Author:4r4
Description:Detects Torii IoT Botnet (stealthier Mirai alternative)
Reference:Identified via researched data
Rule name:enterpriseapps2
Create hunting rule
Author:Tim Brown @timb_machine
Description:Enterprise apps
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Linux_Trojan_Gafgyt_1b2e2a3a
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_27de1106
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_30444846
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_6122acdf
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_9127f7be
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_f51c5ac3
Create hunting rule
Author:Elastic Security
Rule name:Mal_LNX_Gafgyt_Botnet_ELF
Create hunting rule
Author:Phatcharadol Thangplub
Description:Use to detect Gafgyt botnet, and there variants.
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:setsockopt
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
Rule name:unixredflags3
Create hunting rule
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

Gafgyt

elf 31991a90dd0c1446f8e209f0cbf9f0a4ea38914a0109e3cb2798b17c30f8cfef

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3760661/
  
Delivery method
Distributed via web download

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