MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b9bcb58a007f500432d69d733cd9e2c41e806cdeb088c415f7c8e46debb88a1b. 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: 19

Intelligence 19 IOCs YARA 18 File information Comments 1

SHA256 hash:	b9bcb58a007f500432d69d733cd9e2c41e806cdeb088c415f7c8e46debb88a1b
SHA3-384 hash:	58d7ae3b484b00eb87e1978e53fc3e2afb7e595ebb34f472e6c537318e21ffccea98bf1be5522373dcc41936c8c48d9a
SHA1 hash:	244b82b13c2eed56b2fa4d1b8803b8d59bcc7b8d
MD5 hash:	4d6f28bdb99b8e969046e68084fc9d9f
humanhash:	bakerloo-sixteen-sierra-lactose
File name:	NexaraEndpointGuardian.exe
Download:	download sample
Signature	AsyncRAT Create hunting rule
File size:	66'048 bytes
First seen:	2026-01-28 16:01:53 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'752 x AgentTesla, 19'657 x Formbook, 12'248 x SnakeKeylogger)
ssdeep	768:P9gRaaZPiP9GBi49J59c4ROF24Xx3nzhIs1+jKSCv7mqb2nGp1H1oE5cHmQJnz8R:PkZEC5sFzzhIscGbbB16H+G2IVclN
Threatray	2'481 similar samples on MalwareBazaar
TLSH	T142535A042798C965E2AE8AF4BCF2950006B5D9372106DA5E7CC405DBAB9FFC646123FF
TrID	67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 9.7% (.EXE) Win64 Executable (generic) (10522/11/4) 6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.6% (.EXE) Win16 NE executable (generic) (5038/12/1) 4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika	pebin
Reporter	Anonymous
Tags:	AsyncRAT backdoor DCRat Dotnet exe MSIL RAT

Anonymous

.NET executable identified as AsyncRAT/DCRat remote access trojan.

Multiple AV engines detect the sample as Backdoor/AsyncRAT/MSIL:AsyncRat. The file is compiled in MSIL (.NET) and exhibits typical RAT behavior including command-and-control communication, remote execution, persistence and data exfiltration capabilities.

This sample is likely part of a botnet or remote administration malware campaign.

SHA256:
b9bcb58a007f500432d69d733cd9e2c41e806cdeb088c415f7c8e46debb88a1b

Intelligence

File Origin

# of uploads :

# of downloads :

151

Origin country :

Vendor Threat Intelligence

Malware configuration found for:

DcRat PostExploitTool

Details

DcRat

c2 socket addresses, a version, a mutex, an SSL certificate and server signature, an interval, varying flags, and possibly a filepath and a group

Link:

https://research.acce.ciphertechsolutions.com/results/1ebdeda5-2212-4c66-8ffd-a671e1566648/

Malware family:

asyncrat

ID:

File name:

NexaraEndpointGuardian.exe

Verdict:

Malicious activity

Analysis date:

2026-01-28 16:02:28 UTC

Tags:

rat auto-reg asyncrat

Link:

https://app.any.run/tasks/ef4a0c19-a3a1-42f4-8653-bc6b1ee23654

Note:

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

Gathering data

Detection(s):

Win.Packed.Razy-9807129-0

Win.Malware.Generickdz-9865912-0

Win.Trojan.AsyncRAT-9914220-0

Win.Malware.Zusy-10034587-0

Win.Packed.Generickdz-10058942-0

Verdict:

Malicious

Score:

99.1%

Link:

https://cyber-fortress.com/docs/result/index.php?id=697a32febec9764f452fa21d

Tags:

asyncrat autorun

Result

Verdict:

Malware

Maliciousness:

Behaviour

Сreating synchronization primitives

Running batch commands

Creating a process with a hidden window

Creating a file in the %AppData% directory

Creating a file in the %temp% directory

Creating a file

Launching a process

Creating a process from a recently created file

DNS request

Connection attempt

Unauthorized injection to a recently created process

Enabling autorun by creating a file

Verdict:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Tags:

anti-debug anti-vm asyncrat base64 configsecuritypolicy evasive fingerprint hacktool lolbin mpcmdrun msconfig razy reconnaissance regedit schtasks vbnet

Link:

https://www.filescan.io/uploads/697a32fa4156786ccbdd2958/reports/9436f0d9-b31d-4f4c-96b9-10b4dd041bfc/overview

Verdict:

Malicious

Labled as:

Trojan.Generic

Link:

https://www.hybrid-analysis.com/sample/b9bcb58a007f500432d69d733cd9e2c41e806cdeb088c415f7c8e46debb88a1b

Verdict:

Malicious

File Type:

exe x32

First seen:

2026-01-28T13:13:00Z UTC

Last seen:

2026-01-30T06:22:00Z UTC

Hits:

~100

Detections:

Trojan.MSIL.DInvoke.sb HEUR:Trojan-PSW.MSIL.Agent.gen HEUR:Trojan.MSIL.Agent.gen HEUR:Backdoor.MSIL.SheetRat.gen HEUR:Backdoor.MSIL.DcRat.gen Backdoor.MSIL.Darkrat.sb Backdoor.MSIL.Crysan.sb Backdoor.MSIL.Crysan.d PDM:Trojan.Win32.Tasker.cust PDM:Trojan.Win32.Generic

Link:

https://opentip.kaspersky.com/b9bcb58a007f500432d69d733cd9e2c41e806cdeb088c415f7c8e46debb88a1b/results?tab=lookup

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/0b2b5908-cf58-4f2b-b529-8c67e45e67e0

Score:

96%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/b9bcb58a007f500432d69d733cd9e2c41e806cdeb088c415f7c8e46debb88a1b

Gathering data

Detection:

dcrat

Link:

https://mwdb.cert.pl/sample/b9bcb58a007f500432d69d733cd9e2c41e806cdeb088c415f7c8e46debb88a1b/

Verdict:

Malicious

Threat:

Family.ANARCHYRAT

Link:

https://tip.neiki.dev/file/b9bcb58a007f500432d69d733cd9e2c41e806cdeb088c415f7c8e46debb88a1b

Threat name:

ByteCode-MSIL.Backdoor.AsyncRAT

Status:

Malicious

First seen:

2026-01-28 16:02:31 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

22 of 24 (91.67%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=xg6llcqap5iaimwwtvztzwpcyqpia3g6wcemifpxzdsg325yrinq._file

Verdict:

malicious

Label(s):

asyncrat

Result

Malware family:

asyncrat

Score:

10/10

Tags:

family:asyncrat botnet:nexara defense_evasion execution persistence rat

Link:

https://tria.ge/reports/260128-tgqqdsfw2c/

Behaviour

Delays execution with timeout.exe

Scheduled Task/Job: Scheduled Task

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Uses Task Scheduler COM API

Enumerates physical storage devices

Checks computer location settings

Executes dropped EXE

Async RAT payload

AsyncRat

Asyncrat family

Malware Config

C2 Extraction:

changingcanoes.us.com:8848
changingcanoes.us.com:443
changingcanoes.us.com:80
changingcanoes.us.com:8080
changingcanoes.us.com:6060
changingcanoes.us.com:4782
changingcanoes.us.com:4444
changingcanoes.us.com:6666
changingcanoes.us.com:5555
nra.uk.com:8848
nra.uk.com:443
nra.uk.com:80
nra.uk.com:8080
nra.uk.com:6060
nra.uk.com:4782
nra.uk.com:4444
nra.uk.com:6666
nra.uk.com:5555
asianswitch.gb.net:8848
asianswitch.gb.net:443
asianswitch.gb.net:80
asianswitch.gb.net:8080
asianswitch.gb.net:6060
asianswitch.gb.net:4782
asianswitch.gb.net:4444
asianswitch.gb.net:6666
asianswitch.gb.net:5555
jwwp.cn.com:8848
jwwp.cn.com:443
jwwp.cn.com:80
jwwp.cn.com:8080
jwwp.cn.com:6060
jwwp.cn.com:4782
jwwp.cn.com:4444
jwwp.cn.com:6666
jwwp.cn.com:5555
d8zljb.ru.com:8848
d8zljb.ru.com:443
d8zljb.ru.com:80
d8zljb.ru.com:8080
d8zljb.ru.com:6060
d8zljb.ru.com:4782
d8zljb.ru.com:4444
d8zljb.ru.com:6666
d8zljb.ru.com:5555

Unpacked files

SH256 hash:

b9bcb58a007f500432d69d733cd9e2c41e806cdeb088c415f7c8e46debb88a1b

MD5 hash:

4d6f28bdb99b8e969046e68084fc9d9f

SHA1 hash:

244b82b13c2eed56b2fa4d1b8803b8d59bcc7b8d

Detections:

AsyncRAT

DCRat

Link:

https://www.unpac.me/results/12fd2239-01f5-40b4-8d47-0b238d0dd4de/

Malware family:

DCRat

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/b9bcb58a007f/report/overview.html

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

Threat name:

iSpy Keylogger

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/b9bcb58a007f500432d69d733cd9e2c41e806cdeb088c415f7c8e46debb88a1b

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:	AcRat Create hunting rule
Author:	Nikos 'n0t' Totosis
Description:	AcRat Payload (based on AsyncRat)

Rule name:	dcrat Create hunting rule
Author:	jeFF0Falltrades

Rule name:	dcrat_kingrat Create hunting rule
Author:	jeFF0Falltrades

Rule name:	dcrat_rkp Create hunting rule
Author:	jeFF0Falltrades
Description:	Detects DCRat payloads

Rule name:	INDICATOR_SUSPICIOUS_EXE_DcRatBy Create hunting rule
Author:	ditekSHen
Description:	Detects executables containing the string DcRatBy

Rule name:	INDICATOR_SUSPICIOUS_EXE_WMI_EnumerateVideoDevice Create hunting rule
Author:	ditekSHen
Description:	Detects executables attemping to enumerate video devices using WMI

Rule name:	MAL_AsnycRAT Create hunting rule
Author:	SECUINFRA Falcon Team
Description:	Detects AsnycRAT based on it's config decryption routine

Rule name:	MAL_AsyncRAT_Config_Decryption Create hunting rule
Author:	SECUINFRA Falcon Team
Description:	Detects AsnycRAT based on it's config decryption routine

Rule name:	Mal_WIN_AsyncRat_RAT_PE Create hunting rule
Author:	Phatcharadol Thangplub
Description:	Use to detect AsyncRAT implant.

Rule name:	Multifamily_RAT_Detection Create hunting rule
Author:	Lucas Acha (http://www.lukeacha.com)
Description:	Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables

Rule name:	NET 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:	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:	Windows_Generic_Threat_ce98c4bc Create hunting rule
Author:	Elastic Security

Rule name:	win_asyncrat_unobfuscated Create hunting rule
Author:	Matthew @ Embee_Research
Description:	Detects strings present in unobfuscated AsyncRat Samples. Rule may also pick up on other Asyncrat-derived malware (Dcrat/venom etc)

File information

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

Link

https://www.virustotal.com/gui/file/b9bcb58a007f500432d69d733cd9e2c41e806cdeb088c415f7c8e46debb88a1b

Dropping

AsyncRAT

Cape

https://www.capesandbox.com/analysis/50525/

Comments

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commented on 2026-01-28 16:06:03 UTC

RAT King Parser (https://github.com/jeFF0Falltrades/rat_king_parser) Output:

{
"sha256": "b9bcb58a007f500432d69d733cd9e2c41e806cdeb088c415f7c8e46debb88a1b",
"yara_possible_family": "dcrat",
"key": "6aee9786380381d421f853c5f27fa412049a649bf41c73634aefb4b93a603de1",
"salt": "4463526174427971777164616e6368756e",
"config": {
"Ports": [
"8848",
"443",
"80",
"8080",
"6060",
"4782",
"4444",
"6666",
"5555"
],
"Hosts": [
"changingcanoes.us.com",
"nra.uk.com",
"asianswitch.gb.net",
"jwwp.cn.com",
"d8zljb.ru.com"
],
"Version": " 1.0.7",
"Install": "true",
"InstallFolder": "%AppData%",
"InstallFile": "NexaraEndpoint.exe",
"Key": "d3VRYWNLbmJZUFVqb2loVm9PaU9DWlJEdGF1TlU2M3c=",
"Mutex": "NCS_NexaraEndpoint_GuardianLock_8f9g0h1i",
"Certificate": "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",
"Serversignature": "erP1f6F8Jstk+VdUUtvAVDLq0KyH4RPng/gWz1I4TVUd4y5Kp54pLRgdLpTvwax/cA5R2W3Sb8XOLNwWnRePkaxTplfR7WMji0+ZDl0E8B/snz2QJKg4eF+ZVMLb1+U7WedPnNjTpZbGbW+kgaHQloFj7JUW0086HpBcoOSjrPs=",
"Pastebin": "null",
"BSOD": "false",
"Hwid": "null",
"Delay": "1",
"Group": "Nexara",
"AntiProcess": "false",
"Anti": "false"
}
}