MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4f99fcc6eefdf3501f5bdaa92cea2cbfeb58a338ef2b721f4f2992cc51bd7ffc. 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

SHA256 hash:	4f99fcc6eefdf3501f5bdaa92cea2cbfeb58a338ef2b721f4f2992cc51bd7ffc
SHA3-384 hash:	c2737f4b87e851758c10c11e88d783e3981fbc134ebd38c9ba378c6b11e3f5f7df471dddcc6a0c9e12ed6fca1741fea3
SHA1 hash:	0300faaf45770d1ccbd799e71ab694d777b9c40a
MD5 hash:	44ef4338d426cecca8a92bed43cd255c
humanhash:	helium-illinois-maine-grey
File name:	4f99fcc6eefdf3501f5bdaa92cea2cbfeb58a338ef2b721f4f2992cc51bd7ffc.exe
Download:	download sample
Signature	VShell Alert Create hunting rule
File size:	4'608 bytes
First seen:	2026-10-04 02:20:05 UTC
Last seen:	Never
File type:	exe
MIME type:	application/vnd.microsoft.portable-executable
imphash	e82dd51b077167be63c004bed23d0c1e (420 x VShell, 40 x NetWalker, 2 x GuLoader)
ssdeep	48:6I7lwe7TIG08SqJdSR1Ig9TPe1YpV1ZsSZIXxhxhwcRaK:Pl1l09Eq1Ig9T2Enwp
TLSH	T1F091B7C5F757D6B2EC1C17F500A37994C8682E1482BC9B574FA16F0C3C111AA3D7EA12
TrID	21.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 21.2% (.EXE) Win64 Executable (generic) (6522/11/2) 16.3% (.EXE) Win16 NE executable (generic) (5038/12/1) 14.6% (.EXE) Win32 Executable (generic) (4504/4/1) 6.6% (.ICL) Windows Icons Library (generic) (2059/9)
Magika	pebin
Reporter	whack_sh
Tags:	exe vshell

Intelligence

---

File Origin

# of uploads :

1

# of downloads :

188

Origin country :

US

Vendor Threat Intelligence

ACCE Unknown

No detections

ANY.RUN Malicious

Malware family:

n/a

ID:

1

File name:

exe

Verdict:

Malicious activity

Analysis date:

2026-10-04 02:24:52 UTC

Tags:

payload snowlight dropper websocket vshell rat golang

Link:

https://app.any.run/tasks/f95d40c7-3a3c-4061-bf0e-9d883c3a67db

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

CAPE Sandbox

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/90547/

ClamAV Detected

Detection(s):

SecuriteInfo.com.BackDoor.Siggen2.5324.10970.29391.UNOFFICIAL

Alert

Create hunting rule

Dr. Web vxCube Malware

Result

Verdict:

Malware

Maliciousness:

Behaviour

Connection attempt

Sending an HTTP GET request

FileScan.IO Malicious

Verdict:

Malicious

Threat level:

  10/10

Confidence:

100%

Tags:

downloader evasive loader microsoft_visual_cc packed

Link:

https://www.filescan.io/uploads/6ac1b7ee4400512e81e3bf66/reports/778bc155-5bdc-482f-b695-274717b0e486/overview

Hybrid Analysis Win/malicious_confidence_100%

Verdict:

Malicious

Labled as:

Win/malicious_confidence_100%

Link:

https://www.hybrid-analysis.com/sample/4f99fcc6eefdf3501f5bdaa92cea2cbfeb58a338ef2b721f4f2992cc51bd7ffc

Kaspersky OpenTIP Malicious

Verdict:

Malicious

File Type:

exe x32

First seen:

2026-09-30T09:40:00Z UTC

Last seen:

2026-10-05T21:28:00Z UTC

Hits:

~10

Link:

https://opentip.kaspersky.com/4f99fcc6eefdf3501f5bdaa92cea2cbfeb58a338ef2b721f4f2992cc51bd7ffc/results?tab=lookup

Intezer Knight

Malware family:

Knight

Alert

Create hunting rule

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/65da808d-74f2-4508-b071-326d7497737c

Joe Sandbox SNOWLIGHT, VShell

Result

Threat name:

SNOWLIGHT, VShell

Alert

Create hunting rule

Detection:

malicious

Classification:

troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1981833

Signature

Antivirus / Scanner detection for submitted sample

C2 URLs / IPs found in malware configuration

Detected unpacking (creates a PE file in dynamic memory)

Found malware configuration

Multi AV Scanner detection for submitted file

Suricata IDS alerts for network traffic

Unusual module load detection (module proxying)

Uses known network protocols on non-standard ports

Yara detected SNOWLIGHT

Yara detected VShell

Behaviour

Behavior Graph:

Download SVG

Nucleon Malprob Malware

Score:

80%

Verdict:

Malware

File Type:

PE

Link:

https://malprob.io/report/4f99fcc6eefdf3501f5bdaa92cea2cbfeb58a338ef2b721f4f2992cc51bd7ffc

Malva.RE inconclusive

Verdict:

inconclusive

YARA:

4 match(es)

Tags:

Executable PDB Path PE (Portable Executable) PE File Layout Win 32 Exe x86

Link:

https://app.malva.re/file/44ef4338d426cecca8a92bed43cd255c

CERT.PL MWDB

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/4f99fcc6eefdf3501f5bdaa92cea2cbfeb58a338ef2b721f4f2992cc51bd7ffc/

ReversingLabs TitaniumCloud Win32.Trojan.Mikey

Threat name:

Win32.Trojan.Mikey

Alert

Create hunting rule

Status:

Malicious

First seen:

2026-09-30 14:13:07 UTC

AV detection:

30 of 38 (78.95%)

Threat level:

  5/5

Spamhaus Hash Blocklist Suspicious file

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=j6m7zrxo7xzvah233kusz2rmx7vvrizy54vxeh2pfgjmyun5p76a._file

Threatray SNOWLIGHT

Verdict:

malicious

Label(s):

SNOWLIGHT

Alert

Create hunting rule

Link:

https://reports.threatray.com/06dc7884-3dd3-4f98-9578-5fa16eacc32c

Hatching Triage vshell

Result

Malware family:

vshell

Alert

Create hunting rule

Score:

  10/10

Tags:

family:vshell backdoor discovery rat

Link:

https://tria.ge/reports/261004-csph2agf26/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Reads the TCP/IP host and domain name from the registry

System Location Discovery: System Language Discovery

Detects VSHELL Backdoor

Family: VShell

UnpacMe

Unpacked files

SH256 hash:

4f99fcc6eefdf3501f5bdaa92cea2cbfeb58a338ef2b721f4f2992cc51bd7ffc

MD5 hash:

44ef4338d426cecca8a92bed43cd255c

SHA1 hash:

0300faaf45770d1ccbd799e71ab694d777b9c40a

Link:

https://www.unpac.me/results/8fd52a13-48ae-4fbc-8a28-255a919de921/

VMRay VShell

Malware family:

VShell

Alert

Create hunting rule

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/4f99fcc6eefd/report/overview.html

VirusTotal

Please note that we are no longer able to provide a coverage score for Virus Total.

YOROI YOMI Malicious File

Threat name:

Malicious File

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/4f99fcc6eefdf3501f5bdaa92cea2cbfeb58a338ef2b721f4f2992cc51bd7ffc

File information

---

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

VShell

exe 4f99fcc6eefdf3501f5bdaa92cea2cbfeb58a338ef2b721f4f2992cc51bd7ffc

(this sample)

  

Delivery method

Distributed via web download

Cape

https://www.capesandbox.com/analysis/90547/