MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 92c4bb40657fc462b226f34b4f65b6c9c89e10862c8ce14068879e8e80efbf47. 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

AsyncRAT

Vendor detections: 11

Intelligence 11 IOCs YARA 19 File information Comments

SHA256 hash:	92c4bb40657fc462b226f34b4f65b6c9c89e10862c8ce14068879e8e80efbf47
SHA3-384 hash:	d59d21a16de03c3e19d80cf6ad2f63e7317cbfe4a88ee1f36672ffed6ea32555876e247584b1d33930eda9062f3be8d6
SHA1 hash:	d99ffc9936d313803f3320bca7de044a6e8798fd
MD5 hash:	fef317a664f777afc944d8e4c6ab82dd
humanhash:	bakerloo-lima-september-item
File name:	sostener.vbs
Download:	download sample
Signature	AsyncRAT Create hunting rule
File size:	154'101 bytes
First seen:	2026-10-09 19:06:48 UTC
Last seen:	Never
File type:	vbs
MIME type:	application/javascript
ssdeep	1536:6zO7vz9+H/KRHtdGWTvZeblopfUD4Ukl0na/eY6DzWIwigI+2z0KBoMvNPsAw1z5:6y7vzi8Zg5pB8igcgQomVI79Xgc
TLSH	T18DE35EE1BF4007A8ECDF29C48D4AB10531FAEB966914418CBE76E9D769EE74C7030E25
Magika	vba
Reporter	abuse_ch
Tags:	AsyncRAT RAT vbs

Intelligence

File Origin

# of uploads :

# of downloads :

456

Origin country :

Vendor Threat Intelligence

No detections

Detection:

XWorm

Link:

https://www.capesandbox.com/analysis/91256/

Verdict:

Malicious

Score:

94.9%

Link:

https://cyber-fortress.com/docs/result/index.php?id=6ad09a90f4e17c78f715a00d

Tags:

dropper shell sage

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

anti-vm cscript dropper encrypted evasive fingerprint lolbin lolbin obfuscated obfuscated persistence powershell schtasks wscript

Link:

https://www.filescan.io/uploads/6ac93ba7f43ebd32d8e651de/reports/e2036ec3-23a2-4ab9-8af3-f4e590d21fe7/overview

Verdict:

Unknown

Link:

https://www.hybrid-analysis.com/sample/92c4bb40657fc462b226f34b4f65b6c9c89e10862c8ce14068879e8e80efbf47

Verdict:

Malicious

File Type:

vbs

First seen:

2026-10-09T15:48:00Z UTC

Last seen:

2026-10-11T12:52:00Z UTC

Hits:

~10

Link:

https://opentip.kaspersky.com/92c4bb40657fc462b226f34b4f65b6c9c89e10862c8ce14068879e8e80efbf47/results?tab=lookup

Result

Threat name:

XWorm

Detection:

malicious

Classification:

troj.expl.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1985033

Signature

AI detected malicious Powershell script

Allocates memory in foreign processes

Antivirus detection for dropped file

Bypasses PowerShell execution policy

C2 URLs / IPs found in malware configuration

Creates processes via WMI

Found malware configuration

Injects a PE file into a foreign processes

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for dropped file

Potential evasive JS / VBS script found (domain check)

Potential evasive VBS script found (sleep loop)

Powershell drops PE file

Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)

Sample uses string decryption to hide its real strings

Sigma detected: Scheduled temp file as task from temp location

Sigma detected: Script Interpreter Execution From Suspicious Folder

Sigma detected: Suspicious PowerShell Parameter Substring

Sigma detected: Suspicious Script Execution From Temp Folder

Sigma detected: WScript or CScript Dropper

Sigma detected: WScript or CScript Dropper - File

Suricata IDS alerts for network traffic

Suspicious execution chain found

Suspicious powershell command line found

Tries to detect sleep reduction / modifications

Uses dynamic DNS services

Uses schtasks.exe or at.exe to add and modify task schedules

VBScript performs obfuscated calls to suspicious functions

Windows Scripting host queries suspicious COM object (likely to drop second stage)

Windows Shell Script Host drops VBS files

Writes to foreign memory regions

Wscript called in batch mode (surpress errors)

WScript reads language and country specific registry keys (likely country aware script)

Wscript starts Powershell (via cmd or directly)

Yara detected XWorm

Behaviour

Behavior Graph:

Download SVG

Score:

47%

Verdict:

Susipicious

File Type:

SCRIPT

Link:

https://malprob.io/report/92c4bb40657fc462b226f34b4f65b6c9c89e10862c8ce14068879e8e80efbf47

Verdict:

Malware

YARA:

1 match(es)

Tags:

COM Behavior Trace DeObfuscated Obfuscated Scripting.FileSystemObject SOS: 0.51 T1027 T1047 T1059.005 VBScript WScript.Shell

Link:

https://app.malva.re/file/fef317a664f777afc944d8e4c6ab82dd

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/92c4bb40657fc462b226f34b4f65b6c9c89e10862c8ce14068879e8e80efbf47/

Threat name:

Win32.Trojan.Qwexlafiba

Status:

Malicious

First seen:

2026-10-09 19:08:23 UTC

File Type:

Text

AV detection:

10 of 24 (41.67%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=slclwqdfp7cgfmrg6nfu6znwzhej4eegfsgocqdiq6pi5ahpx5dq._file

Result

Malware family:

xworm

Score:

10/10

Tags:

family:xworm defense_evasion discovery execution persistence rat trojan

Link:

https://tria.ge/reports/261009-xtds5sdt4t/

Behaviour

Scheduled Task/Job: Scheduled Task

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Uses Task Scheduler COM API

Command and Scripting Interpreter: JavaScript

Enumerates physical storage devices

Executes a command shell one-liner

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

System Location Discovery: System Language Discovery

Enumerates video capture drivers

Executes a VBScript file via the Windows Script Host.

Suspicious use of SetThreadContext

Checks computer location settings

Executes dropped EXE

Command and Scripting Interpreter: PowerShell

Detect Xworm Payload

Family: Xworm

Process spawned unexpected child process

Malware Config

C2 Extraction:

medellin202156.duckdns.org:1111

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:	ByteCode_MSIL_Backdoor_AsyncRAT Create hunting rule
Author:	ReversingLabs
Description:	Yara rule that detects AsyncRAT backdoor.

Rule name:	Detect_PowerShell_Obfuscation Create hunting rule
Author:	daniyyell
Description:	Detects obfuscated PowerShell commands commonly used in malicious scripts.

Rule name:	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA Create hunting rule
Author:	ditekSHen
Description:	Detects Windows executables referencing non-Windows User-Agents

Rule name:	MALWARE_Win_AsyncRAT Create hunting rule
Author:	ditekSHen
Description:	Detects AsyncRAT

Rule name:	MALWARE_Win_XWorm Create hunting rule
Author:	ditekSHen
Description:	Detects XWorm

Rule name:	MAL_AsyncRAT_Family_V_0_5_8 Create hunting rule
Author:	Trezzza
Description:	Detects AsyncRAT version 0.5.8 and some other versions of AsyncRAT. The name reflects the analysed sample.

Rule name:	NETexecutableMicrosoft Create hunting rule
Author:	malware-lu

Rule name:	Njrat Create hunting rule
Author:	botherder https://github.com/botherder
Description:	Njrat

Rule name:	pe_imphash Create hunting rule

Rule name:	rat_win_xworm_v3 Create hunting rule
Author:	Sekoia.io
Description:	Finds XWorm (version XClient, v3) samples based on characteristic strings

Rule name:	Skystars_Malware_Imphash Create hunting rule
Author:	Skystars LightDefender
Description:	imphash

Rule name:	SUSP_DOTNET_PE_List_AV Create hunting rule
Author:	SECUINFRA Falcon Team
Description:	Detecs .NET Binary that lists installed AVs

Rule name:	Sus_CMD_Powershell_Usage Create hunting rule
Author:	XiAnzheng
Description:	May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)

Rule name:	VECT_Ransomware Create hunting rule
Author:	Mustafa Bakhit
Description:	Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments.

Rule name:	WIN_Malware_XWorm_ForgeAuto_6b06c990_Extrait Create hunting rule
Author:	Marjoriefort
Description:	Detects XWorm (pe, etat extrait)

Rule name:	WIN_Sample_Unique_69354b41 Create hunting rule
Author:	Marjoriefort
Description:	Specimen unique (soumission Bazaar) - strings distinctifs propres au sample
Reference:	69354b41e10daf03d3f3af881b32d5c0fec56b1cfe96629fd4c5263413a42854.exe